Head to head
3
Hard
3
0
Clay
2
0
Carpet
1
Byron Black's wins on the left · Marcelo Rios's on the right · bar lengths share one scale
Momentum
Running lead across all meetings, oldest to newest (walkovers excluded).
All meetings (9)
| 2001 | Tokyo | Hard | R32 | Marcelo Rios | 6-2 7-5 |
| 1999 | Davis Cup WG PO: ZIM vs CHI | Hard | RR | Byron Black | 7-6(3) 3-6 6-2 7-6(6) |
| 1999 | Miami Masters | Hard | R32 | Marcelo Rios | 6-3 6-4 |
| 1998 | Indianapolis | Hard | R16 | Byron Black | 5-7 6-1 7-5 |
| 1998 | Auckland | Hard | SF | Marcelo Rios | 6-1 6-3 |
| 1997 | Singapore | Carpet | R16 | Marcelo Rios | 6-2 6-7(3) 7-6(3) |
| 1997 | Roland Garros | Clay | R64 | Marcelo Rios | 6-7(3) 6-7(0) 6-4 7-6(4) 6-0 |
| 1997 | Scottsdale | Hard | R32 | Byron Black | 6-1 4-6 7-6(5) |
| 1995 | Bologna | Clay | R32 | Marcelo Rios | 5-7 6-3 6-0 |
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.