Pascal's Panel #1: Four-fold on favourites

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

the eternal optimist

−30.7p / £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

−11.9p / £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

On Pascal's pick It loses, and heavily: four favourites in an accumulator comes out at -30.67% to Starting Price, so for every £100 staked you get back only about £69.33. 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 8.8p 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.

On Sandra's pick It loses, and harder than backing the favourite: backing the second favourite in every race returned -11.95% to starting price across 28,483 real bets, so for every £100 staked you got about £88.05 back over the long run, a steeper leak than the favourite's -8.75%. 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 · 28,485real 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.

#	Strategy	Who proposed it	Real return (per £1)	£/week	Sample	Strike	£200/week → today
1	The AI's most-confident picksThe Professor	Guest: RishiAI persona, modelled	−0.8p	−£2	361	—	—
2	Odds-on favourites onlyThe systems	Guest: BarryAI persona, modelled	−4.7p	−£9	4,753	wins 60%	−£886
3	Favourite in a big fieldThe systems	Tested system	−6.2p	−£12	632	wins 24%	—
4	Favourite in a small fieldThe systems	Tested system	−7.4p	−£15	4,011	wins 46%	—
5	Festival favouritesThe systems	Tested system	−7.8p	−£16	2,208	wins 32%	—
6	Favourite over jumpsThe systems	Tested system	−7.9p	−£16	10,307	wins 37%	−£1,991
7	Each-way the favouriteThe basics	Guest: EddieAI persona, modelled	−8.6p	−£17	28,485	places 62%	—
8	Back the favouriteThe basics	Tested system	−8.8p	−£17	28,485	wins 35%	−£1,831
9	Favourite on soft groundThe systems	Tested system	−8.8p	−£18	10,680	wins 35%	—
10	Favourite in handicapsThe systems	Tested system	−8.9p	−£18	19,090	wins 31%	—
11	Favourite on the FlatThe systems	Tested system	−9.2p	−£18	18,178	wins 34%	—
12	Follow the AIThe Professor	Tested system	−11.4p	−£23	6,601	—	—
13	Back the second favouriteThe basics	Guest: SandraAI persona, modelled	−11.9p	−£24	28,483	wins 21%	−£2,830
14	Top-rated horseThe basics	Guest: FrankAI persona, modelled	−15.7p	−£31	25,205	wins 19%	−£3,769
15	Top-rated in handicapsThe systems	Tested system	−16.3p	−£33	19,074	wins 16%	—
16	Double on two favouritesThe multiples	Pascal, the punter	−16.7p	−£33	—	—	—
17	Lucky 15 on favouritesThe multiples	Pascal, the punter	−17.5p	−£35	—	—	—
18	A random horseThe basics	Tested system	−21.5p	−£43	28,485	wins 13%	−£4,962
19	Back the lowest drawThe systems	Guest: StanAI persona, modelled	−24.4p	−£49	18,158	wins 12%	—
20	Back the old stagersThe systems	Guest: CarolAI persona, modelled	−26.8p	−£54	8,698	wins 9%	—
21	Each-way an outsiderThe basics	Tested system	−30.1p	−£60	26,774	wins 7%	—
22	Four-fold on favouritesThe multiples	Pascal, the punter	−30.7p	−£61	—	—	—
23	Back the outsiderThe basics	Tested system	−34.5p	−£69	28,485	wins 3%	−£4,614
24	Four-fold on random horsesThe multiples	Pascal, the punter	−62.0p	−£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 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.

More Pascal's Panel issues