John-Z's Overlay · Trifecta ATM

Sat, May 16

Race 9

OClm 45000n2x

Post: 5:16 · 1m · Dirt · $83K purse · 8 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

8 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 1 P — presser 4 S — closer

Projected speed

Trifecta shape

Wide open

Lottery shape — low hit rates, larger payouts when they cash. Entertainment-only; the model is not confident in any structure.

1×3×3 key (top pick) on posts 6, 4, 8, 7

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

Cost

$6.00

6 combos

Hit prob

3.2%

simulated

Typical payout if hit

$64.25

mean $71.04

Expected ROI

-61.6%

net $-3.70

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [6, 4, 8, 7] — hits 3.2% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $64 (mean $71; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Wide-open shape — anyone could hit; longshots have room.

A Top picks

6, 4

B Contenders

8, 7, 5

C Value-edge longshots

3

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 3.3% $53.15 -69%
1×4×4 key (top pick) $12.00 6.0% $64.25 -65%
2×4×4 part wheel $12.00 6.2% $61.71 -65%
1×5×5 key (top pick) $20.00 9.3% $74.24 -58%
4-horse box $24.00 11.2% $72.81 -65%

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: 56% · Top 4 cover 1.68 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
6ASLOTSA TROUBLE4.5-15.0-183.517%48%·+1%
4AEPCONCORDE SPIRIT3.5-14.0-182.116%46%-11%
8BEPSHADOW DRAGON4.0-16.3-182.512%37%-14%
7BPTHREE B'S5.0-17.9-182.812%37%-6%
5BSEZ ROLL4.5-15.5-180.012%36%-10%
3CSBERNING BEAUTY12-114-178.511%34%+14%
1ECICCIOBELLO6.0-18.3-179.911%34%·-3%
2SLEFTEMBEHIND8.0-111-178.49%29%·+0%

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 9 · Sat, May 16 · 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.