John-Z's Overlay · Trifecta ATM

Sat, May 23

Race 3

Clm 50000

Post: 1:44 · 1m · Dirt · $86K 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

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

2 E — pure early 2 EP — early/presser 2 P — presser

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 1, 4, 2

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

Cost

$6.00

6 combos

Hit prob

9.9%

simulated

Typical payout if hit

$19.39

mean $26.28

Expected ROI

-56.7%

net $-3.40

  • · Most-likely-to-cash structure: 3-horse box on posts [1, 4, 2] — hits 9.9% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $19 (mean $26; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

1

B Contenders

4, 2, 5

C Value-edge longshots

3

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
1×3×3 key (top pick) $6.00 9.5% $16.16 -69%
A key, B in 2nd, A+B+C in 3rd $9.00 12.1% $16.16 -67%
2×4×4 part wheel $12.00 17.8% $16.16 -54%
1×4×4 key (top pick) $12.00 17.7% $14.58 -79%
4-horse box $24.00 31.9% $23.42 -48%

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 2.22 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
1AECALL ME PRECIOUS1.0-11.0-178.924%64%-36%
4BPSPEED SKATER10-112-178.620%57%+34%
2BEPMCSNIPER3.0-14.5-174.717%51%-12%
5BPCOLD CASE8.0-110-175.616%49%+20%
6EPBARTENDER3.5-15.0-176.615%47%-10%
3CEG ROCKS15-125-168.69%32%+16%

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 23 · 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.