John-Z's Overlay · Trifecta ATM

Sun, May 10

Race 6

Md 12500

Post: 3:19 · 7f · Dirt · $35K purse · 9 runners · LIVE Trifecta math uses live odds for 9 of 9 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

9 runners

Contested pace

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

2 E — pure early 1 EP — early/presser 1 P — presser 1 S — closer 4 Unclassified

Projected speed

4 of 9 runners have no BRIS run-style code (often first-time starters); narrative may understate the true pace.

Trifecta shape

Wide open

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

3-horse box on posts 5, 10, 11

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

Cost

$6.00

6 combos

Hit prob

4.4%

simulated

Typical payout if hit

$60.32

mean $63.47

Expected ROI

-53.7%

net $-3.22

  • · Most-likely-to-cash structure: 3-horse box on posts [5, 10, 11] — hits 4.4% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $60 (mean $63; 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

5, 10

B Contenders

11, 1, 4

C Value-edge longshots

8

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
1×3×3 key (top pick) $6.00 3.9% $49.73 -65%
2×4×4 part wheel $12.00 7.4% $48.08 -64%
1×4×4 key (top pick) $12.00 7.0% $46.84 -65%
1×5×5 key (top pick) $20.00 10.5% $60.32 -59%
A key, B in 2nd, A+B+C in 3rd $24.00 11.2% $80.21 -54%

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: 58% · Top 4 cover 1.73 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 Live Pred Fig Win ITM% Edge
5AERICHEZTOO5.0-14.7-12.0-169.419%51%-34%
10APNEXT TIME3.0-13.0-1·3.0-169.717%49%-15%
11BPOWER AURA8.0-17.6-1·9.0-163.813%39%+13%
1BCARSON10-113-16.0-166.611%34%·-2%
4BSCAUSE IMA BOSS15-122-17.0-164.411%33%·+1%
8CKISSES FROM BRAZIL30-143-113-167.310%32%+14%
2ECIRCLE THE STORM15-120-16.0-163.29%29%-8%
12EPMALEVAJE50-167-117-155.35%18%·+4%
3BIG NELSON20-152-114-154.44%15%·-2%
6SCRCARCAR EXPRESS4.0-1
7SCREBARSTOOL30-1
9SCRESTART OUT4.5-1

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. Live column: ↓ green = ≥25% shorter than ML (money horse); ↑ red = ≥25% longer (drifting). See How to Use for the math.

Ask Claude Opus

Questions about the model's predictions for Race 6 · Sun, May 10 · 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.

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