Ricardas Berankis defeated Jack Sock 3-6 6-4 6-1 in the Delray Beach round of 16 on hard. The upset overturned the form book — Jack Sock came in leading the head-to-head 1–0, but Ricardas Berankis had been the form player, winning 3 of their last 7 on hard. Ricardas Berankis claimed a first win over Jack Sock in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2021-07-26 | Atlanta | R32 | hard | Jack Sock | 6-7(4) 6-4 7-5 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (199 vs 199). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About