John-Z's Overlay · Trifecta ATM

Sun, May 17

Race 5

Clm 16000n2l

Post: 2:45 · 7f · Dirt · $36K 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

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

1 E — pure early 2 EP — early/presser 2 P — presser 1 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 8, 4, 6, 2

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

Cost

$6.00

6 combos

Hit prob

16.3%

simulated

Typical payout if hit

$5.97

mean $7.90

Expected ROI

-78.6%

net $-4.71

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [8, 4, 6, 2] — hits 16.3% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $6 (mean $8; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

8

B Contenders

4, 6, 2

C Value-edge longshots

3, 7

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 14.3% $5.97 -79%
2×4×4 part wheel $12.00 25.6% $6.93 -73%
A key, B in 2nd, A+B+C in 3rd $12.00 25.8% $6.93 -73%
1×4×4 key (top pick) $12.00 25.7% $6.93 -74%
1×5×5 key (top pick) $20.00 35.6% $9.88 -68%

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: 78% · Top 4 cover 2.35 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
8AEPGUARDIAN1.6-11.1-177.136%81%-17%
4BSWAR MUNNY6.0-18.3-171.518%56%+20%
6BEAFTER PARTY4.5-14.8-165.015%51%·+4%
2BEPA CAB ON THE ROCKS12-113-168.814%47%+28%
7CPDEWY'S DENALI15-126-165.19%34%+18%
3CPSTEFAN'S TITLE30-145-158.98%31%+23%
1SCRSMO HAIR SAM10-1
5SCREPLUCIUS VERUS2.5-1

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 · Sun, May 17 · 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.