John-Z's Overlay · Trifecta ATM

Sat, May 16

Race 8

Lsvill-G3

Post: 9:39 · 1.50m · Turf · $250K purse · 6 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

6 runners

Contested pace

2 early types — pace should be honest but not crazy. No strong style bias.

2 EP — early/presser 1 P — presser 3 S — closer

Projected speed

Trifecta shape

Competitive

Model has no clear edge — every ticket structure is steeply negative-EV. Skip, or treat as an entertainment bet and size accordingly.

3-horse box on posts 3, 2, 5

The model's most-likely-to-cash structure (informational — not a bet recommendation).

Cost

$6.00

6 combos

Hit prob

9.1%

simulated

Typical payout if hit

$9.71

mean $14.46

Expected ROI

-78.2%

net $-4.69

  • · Most-likely-to-cash structure: 3-horse box on posts [3, 2, 5] — hits 9.1% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $10 (mean $14; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

3

B Contenders

2, 5, 4

C Value-edge longshots

6, 1

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
1×3×3 key (top pick) $6.00 8.8% $9.71 -79%
2×4×4 part wheel $12.00 16.3% $13.50 -71%
A key, B in 2nd, A+B+C in 3rd $12.00 15.7% $9.71 -81%
1×4×4 key (top pick) $12.00 16.5% $6.77 -84%
4-horse box $24.00 29.4% $13.66 -57%

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.

Top-4 ITM concentration: 73% · Top 4 cover 2.18 of the 3.00 expected ITM finishers

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
3ASBURNHAM SQUARE0.4-10.6-195.223%64%-36%
2BEPECHO LANE4.0-14.4-191.719%55%·+4%
5BPDANCIN IN DA'NILE12-113-191.417%51%+31%
4BEPFREEDOM'S WAY30-127-189.015%48%+40%
1CSANEGADA6.0-17.8-189.815%46%+10%
6CSVOTE NO20-132-186.611%36%+24%

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 8 · Sat, May 16 · 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.