John-Z's Overlay · Trifecta ATM

Sat, May 16

Race 3

Clm 16000b

Post: 6:56 · 1.06m · Dirt · $37K 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 2 P — presser 2 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.

1×3×3 key (top pick) on posts 5, 3, 6, 1

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

Cost

$6.00

6 combos

Hit prob

10.5%

simulated

Typical payout if hit

$12.85

mean $23.81

Expected ROI

-58.4%

net $-3.50

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [5, 3, 6, 1] — hits 10.5% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $13 (mean $24; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

5

B Contenders

3, 6, 1

C Value-edge longshots

2

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
A key, B in 2nd, A+B+C in 3rd $9.00 14.0% $12.85 -51%
3-horse box $6.00 11.3% $10.07 -81%
1×4×4 key (top pick) $12.00 18.1% $21.34 -54%
2×4×4 part wheel $12.00 19.2% $12.71 -63%
1×5×5 key (top pick) $20.00 25.8% $31.90 -43%

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: 74% · Top 4 cover 2.23 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
5ASWITS AND WAGERS3.5-13.0-175.426%68%+12%
3BPLITTLE DIXIE2.5-12.9-171.420%59%-14%
6BEPCOULDYOUBELOVED1.6-11.6-170.916%51%-47%
1BSFOURFIFTYSEVEN12-111-166.214%46%+26%
4PMINT DRIVEN4.5-16.9-167.712%40%-6%
2CEPFASTA LAVISTA BABY15-118-165.211%36%+20%

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 3 · 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.