Pascal's Panel #15: Double on two 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 His single favourite just missed, so he is chasing a larger return this time., so this week he is doubling up on two short-priced runners: Double on two favourites, Two favourites in a win double. 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 Eddie, one of our AI punter personas: the each-way optimist, the sort who would back anything covered both ways for a safety net. The persona is modelled, not a real reader (more on that just below), but the strategy it suggests is a genuine, testable one: Each-way an outsider, The guest persona proposes to back an outsider in an each-way fashion..

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

−17.4p / £1

This week's pick Double on two favourites

“Both are favourites, so both should win, and stacking the two prices turns a couple of short returns into one tidy payout. If they're good enough to be jollies on their own, what's the harm in tying them together?”

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 →

Eddie

the each-way optimist

−30.3p / £1

This week's pick Each-way an outsider

“Back a 12/1 shot each-way and you cannot really lose. If it wins you collect a fortune, and even if it only plods into third the place money pays you back and then some. It is the canny way to chase a big price, isn't it?”

Meet Eddie

Eddie backs everything each-way so a placed horse still gives something back, which feels like a safety net. But the place part pays only a slice of already-shortened odds, and the margin sits in both halves, so landing often quietly hides a steady leak.

Their tell: anything covered both ways for a safety net

See the full experiment →

Professor Furlong's verdict

On Pascal's pick It loses heavily, and the reason is the maths, not bad luck. Backing one favourite already loses about 9.1p in every pound, because the bookmaker's margin is baked into the price. Tie two together and you do not cancel that out, you stack it: each leg drags its own losing edge, the favourite only wins about a third of its races, and both have to land or the whole slip dies. Multiply two shaded prices and you multiply the house edge with them, which is why the double comes in at roughly -17.37% to Starting Price, nearly double the leak of a single favourite. So for every £100 staked you get back about £82.63. The second leg does not rescue the first, it just gives the bookie a second cut.

On Eddie's pick No. Each-waying 10/1-plus outsiders returned -30.28% over 28,276 bets, so for every £100 staked you got back about £69.72. It is one of the worst bets on this whole page, and here is why. You are paying twice, a win stake and a place stake, on a horse the market has already priced as very unlikely, and these win just 7% of the time. On a big-priced runner the place part pays only a fraction of the odds, often a fifth, so even when it does sneak into the frame the place return rarely covers the failed win half, and most days it does neither and you lose the lot. Bookmakers also overprice longshots on purpose, the favourite-longshot bias, which is exactly why this bleeds far harder than backing shorter prices. A handful will land at huge odds and feel like proof it works, but that is just variance flattering a few results, not a system that pays.

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 · 30,082real 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	−5.4p	−£11	5,049	wins 60%	−£1,039
3	Favourite in a big fieldThe systems	Tested system	−7.5p	−£15	673	wins 24%	—
4	Favourite in a small fieldThe systems	Guest: CarolAI persona, modelled	−7.7p	−£15	4,256	wins 46%	—
5	Favourite over jumpsThe systems	Tested system	−8.1p	−£16	10,549	wins 37%	−£2,220
6	Festival favouritesThe systems	Guest: CarolAI persona, modelled	−8.3p	−£17	2,351	wins 32%	—
7	Each-way the favouriteThe basics	Guest: EddieAI persona, modelled	−8.8p	−£18	30,082	places 62%	—
8	Back the favouriteThe basics	Tested system	−9.1p	−£18	30,082	wins 35%	−£1,915
9	Favourite on soft groundThe systems	Guest: CarolAI persona, modelled	−9.1p	−£18	11,151	wins 35%	—
10	Favourite in handicapsThe systems	Tested system	−9.3p	−£19	20,132	wins 30%	—
11	Favourite on the FlatThe systems	Tested system	−9.6p	−£19	19,533	wins 34%	—
12	Follow the AIThe Professor	Guest: RishiAI persona, modelled	−11.4p	−£23	6,601	—	—
13	Back the second favouriteThe basics	Guest: SandraAI persona, modelled	−12.1p	−£24	30,080	wins 21%	−£3,223
14	Top-rated horseThe basics	Guest: FrankAI persona, modelled	−15.4p	−£31	26,684	wins 19%	−£3,703
15	Top-rated in handicapsThe systems	Guest: FrankAI persona, modelled	−15.9p	−£32	20,113	wins 16%	—
16	Double on two favouritesThe multiples	Pascal, the punter	−17.4p	−£35	—	—	—
17	Lucky 15 on favouritesThe multiples	Pascal, the punter	−18.1p	−£36	—	—	—
18	A random horseThe basics	Guest: DawnAI persona, modelled	−21.4p	−£43	30,082	wins 13%	−£5,918
19	Back the lowest drawThe systems	Guest: StanAI persona, modelled	−25.2p	−£50	19,509	wins 12%	—
20	Back the old stagersThe systems	Guest: CarolAI persona, modelled	−27.0p	−£54	8,903	wins 9%	—
21	Each-way an outsiderThe basics	Guest: EddieAI persona, modelled	−30.3p	−£61	28,276	wins 7%	—
22	Four-fold on favouritesThe multiples	Pascal, the punter	−31.7p	−£63	—	—	—
23	Back the outsiderThe basics	Guest: LornaAI persona, modelled	−35.3p	−£71	30,082	wins 3%	−£6,084
24	Four-fold on random horsesThe multiples	Pascal, 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 Pascal will surely be looking for a single bold stroke to recover his fortunes.. And another of the personas has floated Next week's guest considers a more cautious approach., 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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