
Beatriz Haddad Maia defeated Katie Boulter 7-6 7-5 in the Ningbo round of 16 on hard. The upset overturned the form book — Katie Boulter came in ranked #71, leading the head-to-head 4–0, defending last year's round of 32. Beatriz Haddad Maia claimed a first win over Katie Boulter in five meetings, narrowing the head-to-head to 4–1.
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2026-02-23 | Merida | R32 | hard | Katie Boulter | 6-4 6-4 |
| 2024-08-05 | Toronto | R32 | hard | Katie Boulter | 1-1 RET |
| 2024-03-18 | Miami | R32 | hard | Katie Boulter | 6-2 6-3 |
| 2024-02-26 | San Diego | R16 | hard | Katie Boulter | 3-6 6-3 6-4 |
Averages from each player's recent completed matches (20 vs 20). ATP, WTA & Challenger.