Do You Gamble Differently When You're Drunk? The Question Everyone Knows the Answer To

[TaffyTipster]

Honest answer first.

Yes.

The specific differences.

Stake sizes: higher. Not dramatically. Enough to notice the next morning.

Selection quality: worse in a specific way. The bets that seem obvious after three pints are the bets that seemed obvious to everyone else as well. The value calculation doesn't happen. The market has already priced the obvious.

Frequency: higher. The gap between bets shortens. The waiting that normally exists between identifying a selection and placing it disappears.

The most specific difference: I stop checking the closing line against my opening view. The step where I ask whether the price has moved against me before placing. That step requires a specific quality of attention that the third pint removes.

The Welsh rugby community in Cardiff is a pub community. The Six Nations is a pub competition as much as it's a sporting one. The bet placed at the Owain Glyndwr before the Wales match and the bet placed at the same pub three hours later after Wales have won are placed by two different people using the same phone.

The second person doesn't know he's different from the first person.

That specific not-knowing is what this thread is about.

 

[DublinDegen]

lads this is the most honest question the forum has asked...

yes obviously differently... more... worse... later into the night...

the specific version for me during the bad years: the session that started at six with friends and by midnight was just me and the phone...

the friends going home... the pub closing... the movement to someone's gaff or just back to my own place...

the betting that started before the session as something casual... a few bets on the evening matches... entertainment money...

the betting that continued after midnight as something else entirely...

the session didn't produce the bad betting... the session produced the state that produced the bad betting after the session ended...

the pub as transition mechanism between the careful daytime person and the 1am person...

both using the same account...

only one of them had placed the deposit...

the specific memory that's stayed with me: waking up on sunday morning and opening the app to check the overnight results and finding bets i didn't remember placing on matches i'd never heard of...

not blackout... i could reconstruct it if pressed...

just... decisions made by a version of me operating under conditions the daytime version would not have endorsed...

the account that doesn't distinguish between the person who opened it and the person using it at 2am...

 

[SharpEddie47]

This is a specific data question I can answer from the timestamp column I added three seasons ago.

Cross-referenced timestamps against the known dates of social occasions where alcohol was likely involved.

The sample is imperfect because I can't know with certainty which sessions involved drinking.

But the Saturday evening bets placed between 9pm and midnight correlate with my social calendar in ways that produce a visible pattern.

Saturday evening selections that were preceded by a social event in my calendar: CLV approximately 1.8% lower than my overall average. P&L on that subset: slightly negative.

Saturday evening selections with no preceding social event: CLV within normal range. P&L consistent with general performance.

The difference isn't enormous.

It's consistent across three seasons.

The selection that feels like good analysis after a few drinks at a friend's house: performing at a meaningfully lower level than the selection made at my desk at 8am.

The impairment isn't removing the analytical vocabulary. I'm still running through the same steps.

The impairment is removing the quality check that catches the reasoning that sounds right but isn't.

The internal editor that would normally flag "wait, is this actually as clear as it seems": that's what goes first.

Not the analysis. The check on the analysis.

 

[ThePuntingProf]

The interaction between alcohol and gambling has been studied specifically and the findings are consistent enough that I want to describe them before sharing my own experience, because the personal experience is less persuasive than the pattern and the pattern here is unusually clear, the research on alcohol and decision-making under uncertainty shows that alcohol impairs specifically the cognitive processes involved in probability estimation and risk assessment while leaving relatively intact the processes involved in pattern recognition and narrative construction, which means the person who has been drinking can still identify that a team has won five in a row and construct a compelling story about why they'll win again, but has significantly impaired capacity to correctly estimate the probability of the outcome or to identify when the story they've constructed has already been fully priced into the market, the specific combination this produces in the betting context is a person who feels analytically engaged because the narrative construction process is functioning normally while the probability calibration that would catch the errors in the narrative is significantly impaired, the drunk bettor is not someone who can't think at all, they're someone who can think fluently but can't check whether the thinking is correct, Margaret had a specific observation about this which she made once after watching me bet during a dinner party in about 2009 where she said that the bets I placed after wine always sounded more certain than the bets I placed sober and that the sounding more certain was the specific thing that should have worried me rather than reassuring me, and she was right because the certainty wasn't evidence of better analysis, it was evidence that the part of me that was uncertain had been quieted while the part of me that constructed confident narratives had not.

 

[FadeThePublic]

The public money angle on this is real and rarely acknowledged.

The betting market on a Saturday evening in the UK during football season: significantly influenced by people who are watching matches in pubs.

The in-play market between 7pm and 11pm on Saturdays: higher volume, more emotionally driven action, more reactive to visible match events and less responsive to pre-match analytical positioning.

The casual drunk bettor is a specific market participant type whose influence on prices is predictable.

They back the team that just scored.

They back the team that looks dominant in the current passage.

They don't back the team that's currently losing but whose xG suggests they should be level.

The in-play market on a Saturday evening: partially shaped by the pub crowd's emotional responses to visible events.

Whether this creates exploitable distortions: possibly, in specific in-play situations where the drunk crowd's recency bias has moved the price away from the pre-match probability more than the in-game evidence warrants.

The specific edge: backing teams that are currently losing but whose underlying performance doesn't justify the degree to which the in-play price has moved against them.

The drunk crowd backs the score. The sober analyst backs the performance.

 

[CoachTony_Bets]

The honest answer for me is more specific than yes or no.

I don't drink heavily and I don't bet heavily. The two things have stayed largely separate in my adult life.

But the coaching equivalent exists.

The game planning session that happens Friday evening when the staff have been working since Monday and everyone is tired and slightly past their best thinking.

The tactical decisions made in that session versus the decisions made Monday or Tuesday morning.

The Friday decisions feel decisive. Everyone agrees. The plan is clear.

The Monday morning review of the Friday plan: sometimes you can see where the tiredness substituted for rigor.

The tiredness version and the alcohol version: different mechanisms, same outcome.

The impairment that feels like clarity.

My son asked me once if I'd ever bet on a game when I'd had a drink.

I told him no.

That was true.

I didn't tell him about the Friday planning sessions.

The version of the conversation I'd want him to understand: the impairment that feels like clarity exists in many forms and alcohol is the most obvious one.

 

[ParlayPrincess_88]

Yes. Very differently.

The specific version: Kansas City has a lot of tailgate culture. You're outside the stadium for hours before the game. Beer is part of it.

The parlay built inside Arrowhead before the game is built by someone who has been drinking since noon.

The legs that get added inside the stadium that wouldn't have been added from my couch at 10am: every single time.

The last-minute addition that feels inspired and turns out to be the leg that kills the parlay: I could trace most of those to a specific moment inside a stadium concourse.

The specific impairment: the last leg threshold.

Sober: four legs is my limit and I know why.

Two beers in: there's a compelling fifth leg available and the four-leg parlay feels incomplete without it.

The compelling fifth leg: always worse than the four-leg parlay would have been.

I've watched this happen enough times to know the pattern completely.

I add the fifth leg anyway every single time.

The tailgate as the mechanism that reliably produces the worst version of my parlay building.

 

[oli_sussex]

Three specific effects of alcohol on betting behavior from exchange observation.

One: increased position sizing. The drunk bettor bets more per selection than their baseline.

Two: reduced market shopping. The drunk bettor takes the available price rather than comparing across books or waiting for better value.

Three: in-play recency bias amplification. The drunk bettor's response to the last visible event is stronger and more immediate than the sober bettor's.

All three move in the direction of worse expected outcomes.

None of them feel like impairment while they're happening.

That's the specific feature of alcohol-impaired decision-making that makes it different from other impairment types.

You feel fine.

 

[Klaus]

The Bundesliga model has a specific protection built in that I implemented for reasons that were originally about process quality and that I've realized in retrospect also function as alcohol protection.

All bet placements require the model output document to be open and the specific selection to be located within it before the bet is placed.

The document is opened on my desktop computer.

The desktop computer is in my study.

My study is not where I drink wine with Petra on Saturday evenings.

The physical separation between the betting process and the social space where drinking occurs: an accidental harm reduction mechanism.

I have placed bets from my phone after Saturday evenings.

The model output document is not on my phone.

The bets placed from my phone that are not in the model output document: they exist.

The P&L on that specific subset: I checked after reading Eddie's timestamp analysis.

Worse than my overall average by a margin that is uncomfortable to specify.

The physical separation was doing more protective work than I had credited it with.

 

[TaffyTipster]

Klaus's accidental harm reduction mechanism.

The desktop computer in the study.

The wine with Petra in the living room.

The physical distance between the drinking space and the betting space doing the work that willpower doesn't reliably do.

The harm reduction that works by making the bad thing slightly harder rather than by making the good decision more appealing.

Been thinking about this since reading it.

The pub in Cardiff and the phone in my pocket: no physical separation at all.

The bet is always reachable.

The drink and the bet in the same pocket.

That's the specific architecture that produces the things I described at the start of this thread.

 

[SharpEddie47]

The phone as the elimination of every protective friction that previously existed between drinking and betting.

Before smartphones: the pub and the betting shop were separate physical locations. The betting shop closed at 6pm. The pub might be open until midnight.

The gap between when the pub was open and when the betting shop was closed: structural protection that existed in the pre-smartphone era.

The smartphone eliminated the protection by putting the betting shop in the same pocket as the phone used to call a taxi home.

The betting market that closes at the same time as the pub: doesn't exist.

The protective architecture of the physical separation: gone.

Replaced by a device that makes the worst hour the most accessible hour.

 

[FadeThePublic]

The pre-smartphone drinking and betting relationship was genuinely different in structure.

The person who drank in the pub and wanted to bet: they had to remember what they wanted to bet, leave the pub, find a bookmaker that was still open, reconstruct the bet from memory, and place it.

The friction: enormous.

The memory reconstruction alone: a genuine barrier. The bet that seemed obvious in the pub was harder to justify when you were standing in front of a person at a counter explaining it.

The smartphone version: the bet that seems obvious in the pub is placed in the pub in approximately thirty seconds without talking to anyone or leaving the building.

The friction removed: not just convenience.

The friction was protective.

The person who had to leave the pub and stand in front of a counter: had approximately five minutes of cooling-off time built into the transaction.

The person placing from their phone without leaving their seat: has approximately zero.

 

[DublinDegen]

the cooling off that the physical distance provided without anyone intending it to...

the betting shop that was a different place from the pub...

the gap between deciding and doing that the geography created automatically...

gone...

the technology that removed the geography...

also removed the gap...

the gap was doing something nobody had named as valuable because nobody had needed to name it...

it was just what the gap between two physical locations meant...

now the gap is gone and what it was doing is visible by its absence...

same as every protective friction this forum has ever discussed...

noticed after removal...

never named while present...

 

[ThePuntingProf]

The historical observation I want to add is that the protective effect of physical separation between drinking and betting was never designed as consumer protection, it was simply a consequence of the economics of operating betting shops with fixed opening hours and fixed physical locations, the protection was accidental and structural rather than intentional and ethical, and the smartphone's elimination of that protection was similarly not designed to harm bettors, it was designed to increase convenience for legitimate betting activity, the harm that emerged from the elimination of the friction was a side effect rather than an intention, which I think matters for understanding why regulatory responses have been slow, because the regulator cannot easily address a harm that emerged from convenience rather than from malice, you can regulate a product that was designed to harm, it is harder to regulate the absence of a protective structure that was never designed to protect, the research on this that I've read suggests that the physical separation between intoxication environments and gambling environments in the pre-smartphone era reduced gambling-related harm measurably without anyone at the time understanding that was what it was doing, it was just the way things worked, and the removal of that separation through smartphone technology has increased harm measurably without the technology having been designed to increase harm, the accidental protection and the accidental harm are symmetrical products of the same indifference to the betting context in which these decisions were made.

 

[CoachTony_Bets]

Prof's accidental protection and accidental harm being symmetrical products of indifference to the betting context.

Nobody designed the betting shop closing time to protect drunk bettors.

Nobody designed the smartphone to harm them.

Both happened.

The coach version of this: the practice environment that inadvertently protected players from overtraining because the facility closed at 8pm and the sport science hadn't identified overtraining as the risk yet. The protection existed without being designed to protect.

Remove the closing time for convenience reasons and the overtraining becomes visible.

The protection only becomes named when it's already gone.

 

[ParlayPrincess_88]

I'm never going to stop going to Arrowhead.

But reading this thread: the parlay I build inside the stadium and the parlay I build from my couch on Friday morning are built by people in genuinely different states.

Both are me.

One of them is me after three beers at a tailgate.

The practical thing I'm taking from this thread: build the parlay before the tailgate.

Lock it in.

Then go to the game.

The parlay exists but the tailgate version of me can't modify it.

This requires deciding on Friday what I would decide at noon on Sunday.

The Friday version of me: almost certainly makes better decisions than the noon-Sunday-at-a-tailgate version.

Whether I'll actually do this or whether I'll build the parlay at the tailgate anyway: genuine uncertainty.

But I know which version is the right one now, which is more than I knew before this thread.

 

[DublinDegen]

princess describing the solution that requires the sober version to protect the drunk version from itself...

pre-committing before the state arrives that needs the commitment...

this is the version of harm reduction that works when the harmful state is predictable...

if you know you'll be at a tailgate on sunday... if you know the session leads to the 1am australian match...

the sober version can build the structure the drunk version will operate inside...

the locked parlay... the app deleted from the phone before the session starts... the deposit limit set on monday that midnight-conor can't override...

all of these work on the same principle...

the sober version having authority over the drunk version through pre-commitment...

the drunk version not being allowed to make certain decisions because the sober version already made them...

the hard part: the sober version has to believe it will happen before it does...

has to believe the tailgate will produce worse decisions than the friday couch...

the belief that your future self in a specific situation will behave worse than your current self in a different situation...

this belief is correct and also surprisingly hard to hold firmly enough to act on it...

 

[TaffyTipster]

Pre-committing before the state arrives.

The Saturday morning before the pub.

Look at the markets. Form a view. Place the bet or decide not to.

Then go to the pub.

The bet either exists or it doesn't when the pub starts.

The pub version of me can't place new bets because the Saturday morning version of me already decided.

Except the phone is in my pocket.

The pub version of me absolutely can place new bets.

The Saturday morning pre-commitment is an intention.

The phone in the pocket is a capability.

The capability survives the intention.

Which is the same thing this forum has found in every thread about willpower versus structure.

The intention doesn't reliably beat the capability.

The structure that removes the capability is more reliable than the intention.

Klaus's study and the desktop computer.

The physical separation that did the work without being asked to.

The version of that for the pub: the phone left at home, the app deleted before Saturday morning, the account balance set to zero before the first pint.

The version I'll actually implement: probably none of these.

The version I know would work: one of these.

 

[Klaus]

The physical separation in my case was never consciously designed.

It was a consequence of my betting process requiring a specific device in a specific room.

The protection emerged from the process.

The process not designed with protection in mind.

The side effect being more valuable than I knew.

Deliberate replication of an accidental benefit: harder than it sounds.

The accidental version required no decision at the moment of protection.

The deliberate version requires a decision specifically at the moment when the state you're protecting against is arriving.

The decision to leave the phone at home before going to the pub: made by the person who is still sober.

The decision to delete the app before Saturday morning: made by the person who knows what Saturday will become.

Both require believing the future self in the compromised state is genuinely different from the current self.

The belief: correct.

The action that follows from it: not automatic.

 

[SharpEddie47]

The thread has produced a specific practical framework.

The drunk bettor is not analytically disabled. The narrative construction still works. The pattern recognition still works. The vocabulary of analysis is intact.

What's impaired: the quality check on the analysis. The internal editor that catches reasoning that sounds right but isn't. The probability calibration that would identify when a compelling story is already fully priced.

The result: the bet that feels more certain than the sober bet. The certainty being evidence of impaired checking rather than superior analysis.

The structural interventions that work: physical separation between drinking and betting. Pre-commitment of selections before the drinking state arrives. Device-level barriers that the drunk version can't easily overcome.

The interventions that don't reliably work: willpower in the moment, intentions held loosely, the decision to be more careful that gets made while already in the impaired state.

The forum's consistent finding: structure beats willpower in every impaired state.

Drunk is the most predictable impaired state most bettors encounter.

It's also the one with the most available structural solutions.

The solutions being available doesn't make them used.

But it makes them possible.