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UAT Racing — Signature Tools

EGO

UAT Racing's Early Win Odds. Before TJK's official probable odds are published, it produces a data-based probable price for every horse from the morning on — with a transparent source label.

Produced by UAT Racing · the modern engine of the 1989 DOS UAT prediction heritage

What Is EGO?

EGO — Early Win Odds is UAT Racing's engine that produces a data-based probable price for every runner well before — from the morning on — while TJK has not yet published its official probable odds. When that cell is still empty in other bulletins, EGO already offers an early estimate, and labels which number comes from where with a transparent badge (EGO / TJK).

EGO is part of UAT Racing's identity as a platform that doesn't merely publish TJK data but creates its own metrics. It continues the same philosophy as Rating (Overall Score), UATRichter (Surprise Index) and GHN (Global Horse Number): commentary on top of data, and concepts worth commenting on.

How Is It Calculated?

EGO converts four core features of each horse into z-scores and sums them with weights; a softmax turns that into a win probability, and from there into a fair and probable price. The weights aren't set by hand — they come from a conditional-logit model trained on past races (leakage-free, out-of-sample).

Core
probability = softmax( Σ weighti · z(featurei) )
probable = fair_odds / (1 + margin)
Probable odds are rounded to 0.05 steps; 100+ are kept in a separate tail.
Fitted weights
  • 0.486 — Rating (surface-selected overall score)
  • 0.275 — Jockey win rate (as-of)
  • 0.245 — Last-6 form
  • 0.158 — Handicap points

Rating is the heaviest component; jockey and form follow. The weights were trained on March–April 2026 data and tested on May–June 2026.

Performance — Out-of-Sample Test

EGO was evaluated on the May–June 2026 period it never saw during training:

45.8%
Favorite agreement
early pick ↔ actual favorite
0.71
Spearman
rank correlation
36+ yrs
UAT prediction heritage
from 1989 DOS F6 to today

Honest note: EGO is an early estimate; it does not aim to beat the final market (closing odds) on probability calibration. Its value is having a strong leading signal in hand while the official probable isn't out yet. It is not a guarantee or investment advice.

Source Priority — From EGO to TJK

The probable price you see in the bulletin comes from this priority ladder; the badge instantly shows which source is in use:

  • TJK — Once the official probable is published, that is the definitive source (green badge)
  • EGO — While there is no official probable, fundamental EGO is shown (gold badge)

In the early morning it's EGO; as the day goes on and TJK's probable arrives, it automatically switches to the official value. The screen always keeps the most current and most reliable number.

Want to see EGO live?

🎯 EGO Bulletin 📋 Live Bulletin