Simona Waltert

WTA ELO profile · tour-level matches since 2017

ELO 1504 · #248 Hard #231 Clay #94 Grass #254 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

33-38 46.5% in 71 matches

Clay 22-18
Grass 0-4
Hard 11-16

Season by season

SeasonMW-LStartPeakEnd
2026 27 11-16 1582 1675 1504
2025 7 5-2 1544 1611 1589
2024 10 7-3 1546 1608 1592
2023 13 3-10 1550 1566 1450
2022 7 5-2 1532 1599 1577
2021 3 1-2 1520 1538 1509
2019 2 1-1 1500 1525 1512
2018 1 0-1 1500 1487 1487
2017 1 0-1 1500 1484 1484

Recent matches

WeekTournamentOpponentResult
Aug 30, 2026 Us Open · Hard Nadia Podoroska L 1-2
Aug 13, 2026 Cincinnati · Hard Jessica Pegula L 0-2
Petra Marcinko W 2-1
Jul 20, 2026 Hamburg · Clay Mayar Sherif L 1-2
Jul 13, 2026 Iasi · Clay Katarzyna Kawa L 0-2
Jun 29, 2026 Wimbledon · Grass Camila Osorio L 0-2
Jun 22, 2026 Eastbourne · Grass Petra Marcinko L 1-2
May 24, 2026 Roland Garros · Clay Katerina Siniakova L 0-2
May 18, 2026 Rabat · Clay Anhelina Kalinina L 0-2
May 05, 2026 Rome · Clay Hailey Baptiste L 1-2

Serve predictions: how close do we get on Simona Waltert?

2025 · out-of-sample backtest Aces per match: 3.4 actual vs 2.7 projected
- our average miss per match
- baseline average miss (last five matches)
- accuracy edge over the baseline

Not enough matches with a baseline in 2025 for a fair comparison. The chart still shows every match we projected.

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 Simona Waltert follow the script?

On serve · 2026
SeasonMW-LModel hitUpsetsVerdict
2026 16 4-12 68.8% 5 vs 5.4 exp On serve

An upset = our model's favorite losing. "Upsets" compares how many actually happened in Simona Waltert'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/simona-waltert">WTA ELO ratings by Predixsport</a> (CC BY 4.0)