

Sebastian Baez defeated Ben Shelton 7-5 6-3 in the Auckland quarter-final on hard. The upset overturned the form book — Ben Shelton came in ranked #6, leading the head-to-head 1–0, defending last year's round of 16. Sebastian Baez claimed a first win over Ben Shelton in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-01-09 | Auckland | R32 | hard | Ben Shelton | 7-6 6-1 |
Averages over each player's completed matches in the selected window (35 vs 34). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Baez S.: 4 days rest · 2 matches, 48 games (7d) · Shelton B.: 4 days rest · 3 matches, 59 games (7d). Higher means fresher. About
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