Head to head
1
Hard
1
0
Grass
1
Alex O'Brien's wins on the left · Sandon Stolle's on the right · bar lengths share one scale
All meetings (3)
| 1997 | Nottingham | Grass | QF | Sandon Stolle | 7-6(5) 4-6 7-6(4) |
| 1996 | Los Angeles | Hard | QF | Sandon Stolle | 6-4 6-3 |
| 1993 | Hong Kong | Hard | R32 | Alex O'Brien | 7-6(5) 5-7 6-4 |
Methodology
Head-to-head totals and surface splits exclude walkovers (no match was played), which follows ATP convention — walkover meetings still appear in the match list. The momentum chart plots the running lead across all counted meetings, oldest to newest.