Kayla Day defeated Yue Yuan in the qualifying second round of the Cincinnati hard-court tournament, 2-6, 7-5, 6-3. Day served 13 aces and converted 50 percent of her break points to advance. The match featured four service breaks for each player.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2024-01-01 | Auckland | R32 | hard | Yue Yuan | 7-6 6-7 6-1 |
| 2022-10-25 | W80 Tyler | R32 | hard | Yue Yuan | 6-4 3-6 6-2 |
Averages over each player's completed matches in the selected window (43 vs 44). ATP, WTA & Challenger.
Slight edge · Day K. narrowly ahead
Calibrated model · 65% favourite accuracy (2025–26, out-of-sample). Probability is a statistical estimate, not a certainty. How it works.
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.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Per-surface Serve / Return Rating (0–100, percentile within the hard field, opponent-adjusted over 52 weeks). About