Katie Boulter

WTA ELO profile · tour-level matches since 2017

ELO 1644 · #65 Hard #59 Clay #85 Grass #91 Last match: Aug 30, 2026

Season ELO trajectory

One point per match: the player's ELO rating after that match, matches in round order. Ratings are season-scoped: every January the engine re-seeds each player from WTA entry points, then updates after every result. That is why trajectories are shown one season at a time. Hover a point for the match behind it.

Career record

128-106 54.7% in 234 matches

Clay 6-11
Grass 35-20
Hard 87-75

Season by season

SeasonMW-LStartPeakEnd
2026 37 20-17 1568 1751 1644
2025 32 13-19 1693 1731 1601
2024 47 29-18 1608 1789 1730
2023 31 19-12 1546 1725 1701
2022 23 16-7 1548 1733 1686
2021 24 12-12 1513 1620 1550
2020 4 1-3 1517 1514 1498
2019 12 5-7 1563 1601 1537
2018 21 12-9 1528 1651 1642
2017 3 1-2 1510 1529 1472

Recent matches

WeekTournamentOpponentResult
Aug 30, 2026 Us Open · Hard Karolina Muchova L 0-2
Carol Young Suh Lee W 2-1
Aug 13, 2026 Cincinnati · Hard Linda Noskova L 0-2
Katie Volynets W 2-1
Aug 02, 2026 Montreal · Hard Kayla Cross L 0-2
Jul 27, 2026 Washington Dc · Hard Ashlyn Krueger L 1-2
Jun 29, 2026 Wimbledon · Grass Tyra Caterina Grant L 0-2
Jun 21, 2026 Bad Homburg · Grass Leylah Fernandez L 1-2
Jun 08, 2026 Queens · Grass Donna Vekic L 0-2
Elena Rybakina W 2-1

Serve predictions: how close do we get on Katie Boulter?

2025 · out-of-sample backtest Aces per match: 2.9 actual vs 3.3 projected
1.35 our average miss per match
1.49 baseline average miss (last five matches)
+10% accuracy edge over the baseline

Comparison covers 24 of the 29 aces projections we made in 2025. A match needs five earlier matches on record before the baseline exists.

The baseline predicts a player's aces as the average of their last five matches. Our model beats it when its projections land closer to what actually happened. Both numbers are the average miss per match, so lower is better, and both are for the selected season only.

Predictability: does Katie Boulter follow the script?

On serve · 2026
SeasonMW-LModel hitUpsetsVerdict
2026 35 19-16 57.1% 15 vs 12.0 exp On serve
2025 bt 29 11-18 58.6% 12 vs 10.9 exp On serve
2024 bt 45 27-18 73.3% 12 vs 15.8 exp On serve

An upset = our model's favorite losing. "Upsets" compares how many actually happened in Katie Boulter's matches with how many the model expected for that exact schedule. A season-level read (a wild-card season does not carry over year to year). How to read this · full board: most predictable WTA players.

Reuse this data · CC BY 4.0

The WTA ELO ratings dataset is free to reuse, including commercially, under CC BY 4.0. Attribution with a link is the only requirement. Copy-paste credit:

Data: <a href="https://www.predixsport.com/wta_tennis-power-rankings/katie-boulter">WTA ELO ratings by Predixsport</a> (CC BY 4.0)