John-Z's Overlay · Trifecta ATM

Sun, May 3

Race 10

Vagrncy-G3

Post: 5:48 · 6.5f · Dirt · $175K 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.

1 E — pure early 3 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 4, 5, 7

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

Cost

$6.00

6 combos

Hit prob

8.5%

simulated

Typical payout if hit

$15.07

mean $15.34

Expected ROI

-78.2%

net $-4.69

  • · Most-likely-to-cash structure: 3-horse box on posts [4, 5, 7] — hits 8.5% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $15 (mean $15; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

4

B Contenders

5, 7, 6

C Value-edge longshots

2, 1

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
1×3×3 key (top pick) $6.00 8.5% $16.05 -78%
A key, B in 2nd, A+B+C in 3rd $12.00 16.0% $17.88 -74%
1×4×4 key (top pick) $12.00 16.2% $17.88 -75%
2×4×4 part wheel $12.00 15.1% $17.42 -76%
1×5×5 key (top pick) $20.00 25.1% $18.98 -70%

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: 71% · Top 4 cover 2.13 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
4AEPWITH THE ANGELS2.5-11.9-194.925%67%-6%
5BPGRAMMY GIRL4.0-14.7-191.117%52%·+1%
7BEMYSTIC LAKE3.5-15.1-192.116%49%-8%
6BEPPRAYING5.0-17.1-191.614%46%·+3%
1CPWONDROUS8.0-18.4-189.014%45%+16%
2CEPMY MAGIC WAND15-115-189.613%42%+26%
3SCREKAPPA KAPPA3.5-1

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 10 · Sun, May 3 · Belmont at The Big A. 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.