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Professor Furlong and Pascal at the AI Lab
THE AI LAB
PASCAL'S PANEL · WEEK 2

Pascal's Panel - Week 2: Lucky 15 on favourites vs Odds-on favourites only

This week on the Panel

Welcome to the Panel, where every betting idea gets a proper test. Two strategies in front of the Professor this week, both run over real races with the method laid bare, so you can see for yourself how each one holds up.

First, Pascal, the eternal optimist. He convinced that one winner covers the rest, Pascal sees multiples as margin-proof insurance, so this week he is spreading his picks across a full Lucky-fifteen so a single winner still pays something back: Lucky 15 on favourites, Lucky 15 on four favourites. He is certain he has cracked it. He usually is, and that is exactly why his ideas are worth testing.

Second, a new idea. It comes from Barry, one of our AI punter personas: the favourite-chaser, the sort who would back the shortest price on the card, every race. The persona is modelled, not a real reader (more on that just below), but the strategy it suggests is a genuine, testable one: Odds-on favourites only, the shortest-priced horses only, treating them as near-certainties the market cannot get wrong.

The Professor tested both the only way that counts: against 26,839 real British races, flat stakes to Starting Price, with the fallers and pulled-up horses counted honestly as losses. Here is how each one actually performs.

Pascal
Pascal
the eternal optimist
−17.7p / £1
This week's pick Lucky 15 on favourites

Back four favourites in a Lucky 15 and even if one or two get beat, the doubles, trebles and the four-fold still pay. One winner gets your stake back, the rest is gravy, so I am basically covered.

Meet Pascal

Pascal is the Lab's resident optimist and Professor Furlong's foil, certain every single week that he has finally cracked it. He turns up with a fresh angle, usually an accumulator or a way to chase last week's loss back, pitches it with total confidence, and watches the Professor test it properly on real races. He never wins and never learns, and he is the warmest reason to keep coming back.

See the full experiment →
Barry
the favourite-chaser
−5.1p / £1
This week's pick Odds-on favourites only

Pascal only touches the bankers, the odds-on jollies the whole world fancies. If a horse is shorter than evens, the market is screaming it can't lose, so he piles in and treats it like money in the bank.

Meet Barry

Barry backs the shortest price on the card and cannot see why anyone does otherwise. Favourites win more races than anything else, so to Barry the maths is settled. He is half right, which is exactly why he never quite gets ahead: they win most, but they never pay enough to cover the ones that lose.

Their tell: the shortest price on the card, every race

See the full experiment →

Professor Furlong's verdict

Professor Furlong
On Pascal's pick You are not covered, you are paying the bookmaker's margin fifteen times over. A Lucky 15 is fifteen bets in one (four singles, six doubles, four trebles and a four-fold), and every leg is a favourite, which on its own loses about 8.9p in the pound once you count the fallers and pulled-up horses as the losing bets they are. The singles already leak that margin, and the multiples are worse, because tying favourites together multiplies the house edge instead of adding it, and one beaten favourite kills every multiple it sits in. Stack all that up and the Lucky 15 on four favourites returns -17.68% to Starting Price, so for every £100 staked you get back about £82.32. One winner returning your stake feels like a save, but that is the bet quietly handing the bookie roughly £18 in every £100 over time. Backing favourites does not beat the margin, and folding them into fifteen bets just lets you pay it fifteen times.
Professor Furlong
On Barry's pick It loses, and here is why. Over 4,840 odds-on favourites settled to starting price this returned -5.09%, so for every £100 staked you got about £94.91 back. These horses do win plenty, six times in ten, but at those short prices each winner pays you a pittance while the four in ten that get turned over still cost you the full stake, and the bookmaker's margin is baked into every price. This is honestly the least-bad bet measured on the whole page, because favourites lose less than longshots, but "least-bad" is still about a 4 percent leak, not a profit. "Banker" only describes how often it wins, never whether the odds are big enough to cover the times it doesn't, so the slow bleed is the margin quietly doing its job.

The standings

Both of this week's strategies sit on the leaderboard already. Here is where everything we have tested stands right now, ranked by real-world return, the least-negative at the top. Every system is a net loss, so the top row is the best real performer, not a winner.

24 systems tested · 28,865real races · none beat the bookmaker's margin. The best real return is −0.8pin the pound, so even the strongest system is a net loss. The bookmaker's margin is the reason.

#StrategyWho proposed itReal return (per £1)£/weekSampleStrike£200/week → today
1The AI's most-confident picksThe ProfessorGuest: RishiAI persona, modelled−0.8p−£2361
2Odds-on favourites onlyThe systemsGuest: BarryAI persona, modelled−5.1p−£104,840wins 60%−£961
3Favourite in a big fieldThe systemsTested system−5.5p−£11651wins 24%
4Favourite in a small fieldThe systemsTested system−7.8p−£164,086wins 46%
5Favourite over jumpsThe systemsTested system−7.9p−£1610,339wins 37%−£2,044
6Festival favouritesThe systemsTested system−8.0p−£162,252wins 32%
7Each-way the favouriteThe basicsGuest: EddieAI persona, modelled−8.7p−£1728,865places 62%
8Favourite on soft groundThe systemsTested system−8.8p−£1810,745wins 35%
9Back the favouriteThe basicsTested system−8.9p−£1828,865wins 35%−£1,842
10Favourite in handicapsThe systemsTested system−9.1p−£1819,326wins 30%
11Favourite on the FlatThe systemsTested system−9.4p−£1918,526wins 34%
12Follow the AIThe ProfessorTested system−11.4p−£236,601
13Back the second favouriteThe basicsGuest: SandraAI persona, modelled−12.0p−£2428,863wins 21%−£2,860
14Top-rated horseThe basicsGuest: FrankAI persona, modelled−15.2p−£3025,547wins 19%−£3,788
15Top-rated in handicapsThe systemsTested system−15.8p−£3219,309wins 16%
16Double on two favouritesThe multiplesPascal, the punter−16.9p−£34
17Lucky 15 on favouritesThe multiplesPascal, the punter−17.7p−£35
18A random horseThe basicsTested system−21.4p−£4328,865wins 13%−£5,158
19Back the lowest drawThe systemsGuest: StanAI persona, modelled−24.5p−£4918,505wins 12%
20Back the old stagersThe systemsGuest: CarolAI persona, modelled−26.8p−£548,735wins 9%
21Each-way an outsiderThe basicsTested system−30.3p−£6127,125wins 7%
22Four-fold on favouritesThe multiplesPascal, the punter−31.0p−£62
23Back the outsiderThe basicsGuest: LornaAI persona, modelled−34.7p−£6928,865wins 3%−£5,034
24Four-fold on random horsesThe multiplesPascal, the punter−61.9p−£124

24 systems tested · 26,839 real races · none beat the bookmaker's margin. The best real return is -4p in the pound. The bookmaker's margin, the over-round, the slice baked into every price so the odds add up to more than 100%, sits in all of them, and no selection rule we have tested clears it. That is the genuinely useful part: the leaderboard shows exactly where the edge goes.

See the full Betting Systems Leaderboard →

What we're testing next week

Pascal will be next week Pascal eyes a new angle on closing the margin gap. And another of the personas has floated the following guest brings a contrarian read on layering short-priced animals, and we will run it the same way, against real races, with the method shown and the real result reported.

If you take one thing from the Panel, take this: picking a likely winner is the easy part. Getting paid more than the true risk is the hard part, and the over-round is what stands in the way. That is the insight every row on the leaderboard is really measuring. Bet for fun, with money you can afford to lose, and read our track record for whether anyone, us included, holds a real edge at all.

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