Roberto Cid Subervi defeated Christian Langmo 7-5 4-6 6-4 in the M25 Santo Domingo 1 quarter-final on hard. The upset overturned the form book — Christian Langmo came in leading the head-to-head 1–0, but Roberto Cid Subervi had been the form player, winning 9 of their last 9 on hard. Roberto Cid Subervi claimed a first win over Christian Langmo in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2023-01-26 | M25 Wesley Chapel 1 | R16 | hard | Christian Langmo | 6-1 6-7(4) 7-5 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.