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hardoutdoor· South Korea· Korea Open

Taylah Preston vs Jelena Ostapenko

24 Sept, 07:00 · Round 2 · best of 3 · in 4h 4m

Why 66% for Jelena Ostapenko

Each bar is that input's share of the explanatory signal.

Surface Elo (hard)48.3% · +8.3% toward Jelena Ostapenko
ATP ranking51.7% · +8.8% toward Jelena Ostapenko
Rest and workload0.0% · +0.0% toward Jelena Ostapenko

Raw model probability 33%, calibrated to 34% for Taylah Preston. Calibration is fitted on completed matches and pulls confident predictions back toward the centre.

Projected total games

23.5

leans over for a best of 3

Straight sets

52%

chance the match ends without a deciding set

Market comparison

Our model
34%
Market
32%

3.00

Difference
1.8%

Our model and the market broadly agree on this match.

Betano MX · 3.00 / 1.40 · bookmaker margin of 4.8% removed so the two sides sum to 100%. Predictions only — not a profit claim.

What is missing here

  • Taylah Preston has a provisional hard rating (5–19 matches), so it is pulled part-way toward his overall rating rather than used at face value.
Taylah PrestonJelena Ostapenko
1632hard Elo1676
1592Overall Elo1750
+40hard vs overall-74
7–10hard record183–152
provisionalrating basisrated

The model uses an effective rating that pulls a thin surface sample back toward the overall rating: 1613 vs 1679.