Nam Hoang Ly defeated Yan Bai 7-6 4-6 6-4 in the M25 Tay Ninh 1 semi-final on hard. The upset overturned the form book — Yan Bai came in leading the head-to-head 1–0, but Nam Hoang Ly had been the form player, winning 4 of their last 8 on hard. Nam Hoang Ly claimed a first win over Yan Bai in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2019-10-09 | M25 Tay Ninh 2 | R32 | hard | Yan Bai | 6-4 7-6(5) |
Averages over each player's completed matches in the selected window (51 vs 83). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About