Steve Johnson defeated Denis Istomin 6-3 7-6 6-3 in the US Open round of 128 on hard. The upset overturned the form book — Denis Istomin came in leading the head-to-head 1–0, defending last year's round of 128, but Steve Johnson had been the form player, winning 1 of their last 5 on hard. Steve Johnson claimed a first win over Denis Istomin in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-09-18 | Davis Cup WG PO: UZB vs USA | RR | clay | Denis Istomin | 6-1 3-6 7-6(5) 6-7(3) 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 (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About