Mark Knowles defeated Jeff Tarango 5-7 7-5 6-2 in the Shanghai quarter-final on carpet. The upset overturned the form book — Jeff Tarango came in leading the head-to-head 1–0. Mark Knowles claimed a first win over Jeff Tarango in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 1999-10-18 | Lyon | R64 | clay | Jeff Tarango | 6-4 6-1 |
Averages over each player's completed matches in the selected window (15 vs 200). 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