Jack Sock defeated Steve Johnson 6-2 6-2 in the Miami Masters qualifying round 2 on hard. The result followed the form book — Jack Sock came in leading the head-to-head 4–3. Jack Sock extended the head-to-head to 5–3.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2020-02-17 | Delray Beach | R16 | hard | Steve Johnson | 6-4 5-7 6-1 |
| 2017-04-10 | Houston | SF | clay | Steve Johnson | 4-6 6-4 6-3 |
| 2017-02-20 | Delray Beach | QF | hard | Jack Sock | 6-4 7-6(4) |
| 2017-01-09 | Auckland | SF | hard | Jack Sock | 6-4 6-3 |
| 2015-08-03 | Washington | QF | hard | Steve Johnson | 7-6(5) 6-1 |
| 2014-05-26 | Roland Garros | R64 | clay | Jack Sock | 7-5 6-4 6-2 |
| 2012-07-16 | Atlanta | R16 | hard | Jack Sock | 7-6(5) 7-6(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 (61 vs 106). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.