Head to head
1
Hard
0
1
Grass
0
Alex O'Brien's wins on the left · Ivan Ljubicic's on the right · bar lengths share one scale
All meetings (2)
| 2000 | Wimbledon | Grass | R128 | Alex O'Brien | 5-7 6-1 7-5 7-6(4) |
| 1997 | New Haven | Hard | R64 | Alex O'Brien | 6-3 6-1 |
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.