Wed, Apr 29
Race 5
Md 50000
Post: 2:47 · 6f · Dirt · $67K purse · 10 runners
New — Ask Claude Opus about this race Why a horse rates the way it does, what the trifecta ticket means, where the public might be wrong.Pace shape
10 runnersSpeed duel
6 early types and no pressers or closers in the field — expect a fast, attritional pace where the fittest E/EP survives. No style edge.
Projected speed
- #8 BOURBON AND SPICE (E, QSP 6)
- #5 SANTIANA (E, QSP 6)
- #4 DIAGRAM (E, QSP 5)
- #3 GO GO PLAYMATE (E, QSP 5)
- #7 RED RAINBOW (E, QSP 3)
- #10 RIBADEO (EP, QSP 0)
4 of 10 runners have no BRIS run-style code (often first-time starters); narrative may understate the true pace.
Trifecta shape
Wide openLottery shape — low hit rates, larger payouts when they cash. Entertainment-only; the model is not confident in any structure.
3-horse box on posts 4, 8, 5
The model's most-likely-to-cash structure (informational — not a bet recommendation).
Cost
$6.00
6 combos
Hit prob
1.5%
simulated
Typical payout if hit
$300.01
mean $304.25
Expected ROI
-24.2%
net $-1.45
- · Most-likely-to-cash structure: 3-horse box on posts [4, 8, 5] — hits 1.5% of simulated runs
- · At $6 stake, a typical cash pays ≈ $300 (mean $304; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
- · Wide-open shape — anyone could hit; longshots have room.
A Top picks
4, 8
B Contenders
5, 9, 3
C Value-edge longshots
2, 7
Other ticket structures (5)
| Ticket | Cost | Hit prob | Typical payout | ROI |
|---|---|---|---|---|
| 1×3×3 key (top pick) | $6.00 | 1.4% | $97.71 | -72% |
| 2×4×4 part wheel | $12.00 | 2.7% | $98.61 | -68% |
| 1×4×4 key (top pick) | $12.00 | 2.7% | $93.30 | -76% |
| 1×5×5 key (top pick) | $20.00 | 4.3% | $66.62 | -81% |
| 4-horse box | $24.00 | 5.2% | $99.21 | -70% |
Hit prob is the model's per-race PL distribution. "Typical payout" is the median cash, weighted by the public pool's odds (not the model's own picks) and calibrated to actual historical trifecta payoffs — so it reflects what the tote really pays, not the model's disagreement. Walk-forward backtests show pari-mutuel takeout (~16-26%) is too steep to consistently clear at this data scale — these are tipsheet outputs, not bet recommendations.
Field
↳ Click any horse name for the per-horse breakdown (last-10-races chart, SHAP feature contributions, full PP table).
| PP | Horse | ML | Pred Close | Pred Fig | Win | ITM% ↓ | Edge |
|---|---|---|---|---|---|---|---|
| 4 | AEDIAGRAM | 4.5-1 | 4.6-1 | 72.7 | 13% | 37% | ▼-9% |
| 8 | AEBOURBON AND SPICE | 8.0-1 | 9.4-1 | 72.0 | 12% | 34% | ▲+6% |
| 5 | BESANTIANA | 10-1 | 11-1 | 71.2 | 11% | 33% | ▲+10% |
| 9 | BSCARCE | 3.0-1 | 3.2-1 | 70.4 | 10% | 31% | ▼-33% |
| 3 | BEGO GO PLAYMATE | 5.0-1 | 5.3-1 | 69.8 | 10% | 31% | ▼-11% |
| 10 | EPRIBADEO | 3.5-1 | 4.1-1 | 69.5 | 10% | 30% | ▼-27% |
| 1 | GRANT'S GRETCHEN | 10-1 | 17-1 | 72.1 | 10% | 29% | ▲+6% |
| 7 | CERED RAINBOW | 12-1 | 21-1 | 69.0 | 9% | 28% | ▲+9% |
| 2 | CLUCK OF THE DAY | 20-1 | 40-1 | 69.0 | 9% | 26% | ▲+14% |
| 6 | LIL BRAVEHEART | 20-1 | 44-1 | 64.8 | 6% | 20% | ▲+8% |
Sort the table by clicking column headers. Edge = our predicted ITM% minus the public-implied ITM% (live odds when present, ML otherwise); green ▲ ≥ +5pp, red ▼ ≤ −5pp. See How to Use for the math.
Ask Claude Opus
Questions about the model's predictions for Race 5 · Wed, Apr 29 · Churchill Downs. Powered by Claude Opus 4.7.
Ask anything about the field, the trifecta ticket, or why the model rates a horse the way it does.
Limited to 30 questions per day per visitor. Answers are model-generated and may be incorrect — not betting advice.