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Professor Furlong and Pascal at the AI Lab
THE AI LAB
Pascal turns up with a new system every single week. So we test every one of them, properly, against the market. Come and see how his ideas have actually held up.
And one of them is going to land any day now. Any day, I'm telling you.
PASCAL'S PANEL · WEEK 1

Pascal's Panel - Week 1: Four-fold on favourites vs Back the second favourite

← All issues·The standings

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 watched a short-priced favourite come up short and reckoned the fix was to back four at once, so this week he is stacking four favourites into one accumulator: Four-fold on favourites, Four favourites in an accumulator. 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 Sandra, one of our AI punter personas: the contrarian value-hunter, the sort who would back the second favourite, one off the jolly for the value. The persona is modelled, not a real reader (more on that just below), but the strategy it suggests is a genuine, testable one: Back the second favourite, back the second favourite every race, on the theory that everyone overbets the jolly so the value sits one place out.

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
−30.6p / £1
This week's pick Four-fold on favourites

“Each favourite wins more often than it loses, so stack four of them together and the returns balloon while the risk barely shifts. One tidy Saturday slip and a tenner becomes a proper payday.”

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 →
Sandra
the contrarian value-hunter
−12.0p / £1
This week's pick Back the second favourite

“Everyone piles onto the favourite, so its price gets too short to be worth it. The second favourite is nearly as likely to win but pays a bit more, so I'm getting the same kind of horse at a fairer price. Smart, no?”

Meet Sandra

Sandra reckons everyone piles onto the favourite, so the value must sit one place out, on the second favourite. It is a genuinely clever thought. It just is not true: the second favourite carries the same margin, and stepping out in price makes the value worse, not better.

Their tell: the second favourite, one off the jolly for the value

See the full experiment →

Professor Furlong's verdict

Professor Furlong
On Pascal's pick It loses, and heavily: four favourites in an accumulator comes out at -30.64% to Starting Price, so for every £100 staked you get back only about £69.36. Here is why. A favourite is no near-certainty, it wins barely a third of the time, and even backed on its own to SP it already loses 8.7p in the pound because the bookmaker's margin is baked into the price. When you multiply four of those prices together you multiply that margin four times over too, so the four-fold carries a far bigger built-in edge against you than any single leg. All four favourites must win or the whole slip is dead, and the run of days where just one gets turned over swamps the rare day they all land, which is exactly why the loss is this deep.
Professor Furlong
On Sandra's pick It loses, and harder than backing the favourite: backing the second favourite in every race returned -11.97% to starting price across 27,419 real bets, so for every £100 staked you got about £88.03 back over the long run, a steeper leak than the favourite's -8.74%. The reason is simple. The second favourite isn't mispriced, it's just the next-shortest horse in the field, and the bookmaker bakes the same margin, the overround, into its price as into every other runner. You're not finding value, you're paying the house edge on a horse that wins barely more than one race in five, far less often than the favourite, so the extra few points of odds never come close to covering the run of losers. Picking a "sensible" runner doesn't remove the tax built into the odds, it just hides it.

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 · 26,839real 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)SampleStrike£200/week → today
1The AI's most-confident picksThe ProfessorTested system−0.8p361——
2Odds-on favourites onlyThe systemsGuest: BarryAI persona, modelled−4.6p4,547wins 60%−£762
3Favourite in a big fieldThe systemsTested system−6.0p605wins 24%—
4Favourite in a small fieldThe systemsTested system−7.4p3,772wins 46%—
5Favourite over jumpsThe systemsTested system−7.8p10,194wins 37%−£2,115
6Festival favouritesThe systemsTested system−8.3p2,098wins 32%—
7Back the favouriteThe basicsTested system−8.7p27,421wins 35%−£1,851
8Favourite on soft groundThe systemsTested system−8.8p10,672wins 35%—
9Favourite in handicapsThe systemsTested system−8.8p18,383wins 30%—
10Favourite on the FlatThe systemsTested system−9.3p17,227wins 34%—
11Follow the AIThe ProfessorTested system−11.4p6,601——
12Back the second favouriteThe basicsGuest: SandraAI persona, modelled−12.0p27,419wins 21%−£3,080
13Top-rated horseThe basicsTested system−15.9p24,222wins 19%−£3,806
14Top-rated in handicapsThe systemsTested system−16.4p18,368wins 16%—
15Lucky 15 on favouritesThe multiplesPascal, the punter−17.5p———
16A random horseThe basicsTested system−21.6p27,421wins 13%−£5,215
17Back the lowest drawThe systemsTested system−25.1p17,208wins 12%—
18Back the old stagersThe systemsTested system−27.2p8,571wins 8%—
19Each-way an outsiderThe basicsTested system−29.9p25,800wins 7%—
20Four-fold on favouritesThe multiplesPascal, the punter−30.6p———
21Back the outsiderThe basicsTested system−34.5p27,421wins 3%−£4,338
22Four-fold on random horsesThe multiplesTested system−62.1p———

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 back with another idea he is sure cracks it, and the Professor will test it the same way. And another of the personas has floated an each-way-the-outsider idea from one of the other personas, 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.