John-Z's Overlay · Trifecta ATM

Fri, May 22

Race 5

Alw 30000s

Post: 2:45 · 7f · Dirt · $62K purse · 7 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

7 runners

Hot pace

6 early types pressing for the lead — expect a fast pace, favors closers (P/S).

5 E — pure early 1 EP — early/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.

3-horse box on posts 2, 4, 7

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

Cost

$6.00

6 combos

Hit prob

7.7%

simulated

Typical payout if hit

$18.66

mean $19.93

Expected ROI

-74.3%

net $-4.46

  • · Most-likely-to-cash structure: 3-horse box on posts [2, 4, 7] — hits 7.7% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $19 (mean $20; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

2, 4

B Contenders

7, 1, 6

C Value-edge longshots

5, 3

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
1×3×3 key (top pick) $6.00 6.4% $15.52 -76%
2×4×4 part wheel $12.00 12.8% $22.72 -68%
1×4×4 key (top pick) $12.00 11.4% $21.31 -80%
4-horse box $24.00 23.3% $29.51 -63%
1×5×5 key (top pick) $20.00 16.1% $21.37 -77%

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: 67% · Top 4 cover 2.02 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
2AEBEAUTIFUL TWICE1.6-11.1-183.420%55%-43%
4AEDANZIG'S DORA5.0-15.1-181.219%54%+11%
7BEPRANDO3.5-13.5-180.618%51%-5%
1BETAQDEER6.0-18.9-180.414%42%+6%
6BETHATSALRIGHTMAMA4.0-15.1-178.013%41%-10%
3CSASHES AND DIAMONDS10-113-176.910%33%+10%
5CESPANKERBOOM20-124-170.27%24%+12%

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 · Fri, May 22 · 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.