Jaime Yzaga
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Aaron Krickstein | 1 | 8 | 9 | Oct 6, 1994 | H2H |
| Pete Sampras | 3 | 4 | 7 | Sep 1, 1995 | H2H |
| Ivan Lendl | 0 | 7 | 7 | Aug 10, 1994 | H2H |
| Andrei Chesnokov | 2 | 5 | 7 | Apr 14, 1994 | H2H |
| Brad Gilbert | 5 | 2 | 7 | Oct 7, 1993 | H2H |
H2H data updated: 2026-08-31 00:00 UTC
Jaime Yzaga vs Mark Knowles H2H: 1-0
Jaime Yzaga holds a 1–0 lead over Mark Knowles in their ATP head-to-head. Across 1 main-draw meeting, Jaime Yzaga leads 1–0 on hard courts. Most recently, Jaime Yzaga won the 1991 Washington Open round of 32 7-5 6-1.
Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.
H2H
1
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0
1 main draw meetings
H2H Match Log
| Winner | Score | Loser | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Jaime Yzaga | 7-5 6-1 | Mark Knowles | Match data | Jul 18, 1991* | R32 | Washington Open | ATP Championship Series → modern equivalent ATP 500 | Hard |
Estimated match date where the exact historical date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.
Career Comparison
| Player | Current | Peak | Pts | Elo | W | L | Win % | GS | 1000 including documented historical predecessor categories | Finals | 500 including documented historical predecessor categories | 250 including documented historical predecessor categories | Titles |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jaime Yzaga | #381 | #18 | 1,391 | 1,872 | 239 | 206 | 53.7% | 0 | 0 | 0 | 1 | 7 | 8 |
| Mark Knowles | #1,400 | #96 | 484 | 1,623 | 23 | 52 | 30.7% | 0 | 0 | 0 | 0 | 0 | 0 |
Career Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. GS and Titles are cumulative career totals through that season.
| Age | Jaime Yzaga | Mark Knowles | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 16 | — | — | — | — | — | — | — | 1988 | 0–1 | 0.0% | #728 | 1,484 | 0 | 0 |
| 17 | 1985 | 4–3 | 57.1% | #45 | 1,603 | 0 | 0 | 1989 | 0–3 | 0.0% | #430 | 1,449 | 0 | 0 |
| 18 | 1986 | 19–18 | 51.4% | #64 | 1,680 | 0 | 0 | — | — | — | — | — | — | — |
| 19 | 1987 | 23–20 | 53.5% | #70 | 1,708 | 0 | 2 | 1991 | 2–3 | 40.0% | #291 | 1,460 | 0 | 0 |
| 20 | 1988 | 20–19 | 51.3% | #65 | 1,715 | 0 | 3 | 1992 | 1–1 | 50.0% | #258 | 1,484 | 0 | 0 |
| 21 | 1989 | 32–16 | 66.7% | #23 | 1,836 | 0 | 3 | 1993 | 3–3 | 50.0% | #173 | 1,525 | 0 | 0 |
| 22 | 1990 | 18–20 | 47.4% | #87 | 1,696 | 0 | 3 | 1994 | 2–7 | 22.2% | #231 | 1,509 | 0 | 0 |
| 23 | 1991 | 24–17 | 58.5% | #53 | 1,767 | 0 | 4 | 1995 | 3–4 | 42.9% | #139 | 1,549 | 0 | 0 |
| 24 | 1992 | 26–19 | 57.8% | #49 | 1,687 | 0 | 6 | 1996 | 10–17 | 37.0% | #117 | 1,535 | 0 | 0 |
| 25 | 1993 | 30–21 | 58.8% | #31 | 1,780 | 0 | 8 | 1997 | 0–5 | 0.0% | #363 | 1,493 | 0 | 0 |
| 26 | 1994 | 28–27 | 50.9% | #31 | 1,728 | 0 | 8 | 1998 | 2–3 | 40.0% | #273 | 1,483 | 0 | 0 |
| 27 | 1995 | 13–24 | 35.1% | #107 | 1,615 | 0 | 8 | 1999 | 0–3 | 0.0% | #223 | 1,451 | 0 | 0 |
| 28 | 1996 | 2–2 | 50.0% | #379 | 1,609 | 0 | 8 | 2000 | 0–2 | 0.0% | #350 | 1,436 | 0 | 0 |
Surface Results by Age
Seasons are aligned by the age each player spent most of that calendar year. Results cover completed main-draw matches. Bold green marks the higher win percentage when both players have at least 5 matches on that surface at the aligned age.
| Age | Jaime Yzaga | Mark Knowles | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Hard | Clay | Grass | Carpet | Yr | Hard | Clay | Grass | Carpet | |||||||||||||||||||||||||
| W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | W | L | M | Win % | |||
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1988 | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | 1985 | 3 | 1 | 4 | 75.0% | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | 1989 | 0 | 2 | 2 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 18 | 1986 | 14 | 10 | 24 | 58.3% | 3 | 6 | 9 | 33.3% | — | — | — | — | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1987 | 16 | 11 | 27 | 59.3% | 4 | 5 | 9 | 44.4% | 2 | 3 | 5 | 40.0% | 1 | 1 | 2 | 50.0% | 1991 | 2 | 3 | 5 | 40.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 1988 | 13 | 11 | 24 | 54.2% | 7 | 5 | 12 | 58.3% | 0 | 1 | 1 | 0.0% | 0 | 2 | 2 | 0.0% | 1992 | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 21 | 1989 | 17 | 8 | 25 | 68.0% | 14 | 7 | 21 | 66.7% | — | — | — | — | 1 | 1 | 2 | 50.0% | 1993 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% |
| 22 | 1990 | 5 | 9 | 14 | 35.7% | 6 | 8 | 14 | 42.9% | — | — | — | — | 7 | 3 | 10 | 70.0% | 1994 | 1 | 5 | 6 | 16.7% | 0 | 1 | 1 | 0.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 23 | 1991 | 13 | 10 | 23 | 56.5% | 7 | 3 | 10 | 70.0% | 1 | 1 | 2 | 50.0% | 3 | 3 | 6 | 50.0% | 1995 | 1 | 2 | 3 | 33.3% | 1 | 1 | 2 | 50.0% | 1 | 1 | 2 | 50.0% | — | — | — | — |
| 24 | 1992 | 15 | 11 | 26 | 57.7% | 10 | 7 | 17 | 58.8% | 1 | 1 | 2 | 50.0% | — | — | — | — | 1996 | 2 | 9 | 11 | 18.2% | 1 | 3 | 4 | 25.0% | 3 | 4 | 7 | 42.9% | 4 | 1 | 5 | 80.0% |
| 25 | 1993 | 17 | 12 | 29 | 58.6% | 13 | 7 | 20 | 65.0% | — | — | — | — | 0 | 2 | 2 | 0.0% | 1997 | 0 | 3 | 3 | 0.0% | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 26 | 1994 | 12 | 12 | 24 | 50.0% | 11 | 9 | 20 | 55.0% | 1 | 1 | 2 | 50.0% | 4 | 5 | 9 | 44.4% | 1998 | — | — | — | — | 0 | 1 | 1 | 0.0% | 2 | 2 | 4 | 50.0% | — | — | — | — |
| 27 | 1995 | 7 | 9 | 16 | 43.8% | 6 | 14 | 20 | 30.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | 1999 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | 0 | 1 | 1 | 0.0% |
| 28 | 1996 | 2 | 2 | 4 | 50.0% | — | — | — | — | — | — | — | — | — | — | — | — | 2000 | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 134 | 106 | 240 | 55.8% | 82 | 73 | 155 | 52.9% | 5 | 7 | 12 | 41.7% | 18 | 20 | 38 | 47.4% | — | 8 | 31 | 39 | 20.5% | 2 | 8 | 10 | 20.0% | 8 | 9 | 17 | 47.1% | 5 | 4 | 9 | 55.6% |
Performance Progression by Age
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 198/233 of Jaime Yzaga's and 65/71 of Mark Knowles's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.
| Age | Jaime Yzaga | Mark Knowles | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | Yr | Sample | Aces/M | DFs/M | 1st Sv% | 1st Pts% | 2nd Pts% | BP Saved% | BP Conv% | Svc Pts% | Ret Pts% | |
| 19 | — | —/— | — | — | — | — | — | — | — | — | — | 1991 | 5/5 | 2.4 | 1.6 | 62.5% | 68.6% | 47.8% | 56.2% | 55.0% | 60.2% | 39.4% |
| 20 | — | —/— | — | — | — | — | — | — | — | — | — | 1992 | 2/2 | 4.0 | 6.5 | 52.4% | 78.2% | 49.7% | 83.3% | 55.0% | 64.9% | 38.8% |
| 21 | — | —/— | — | — | — | — | — | — | — | — | — | 1993 | 6/6 | 3.8 | 3.3 | 51.6% | 75.1% | 49.1% | 56.8% | 65.1% | 62.4% | 38.3% |
| 22 | — | —/— | — | — | — | — | — | — | — | — | — | 1994 | 8/9 | 2.6 | 6.9 | 59.6% | 65.0% | 41.6% | 46.5% | 48.0% | 55.5% | 39.0% |
| 23 | 1991 | 34/41 | 1.7 | 1.9 | 64.4% | 65.3% | 50.1% | 56.2% | 43.2% | 59.8% | 41.8% | 1995 | 6/7 | 1.8 | 5.3 | 60.7% | 63.3% | 46.7% | 46.2% | 51.1% | 56.4% | 32.9% |
| 24 | 1992 | 39/45 | 1.9 | 3.4 | 59.7% | 67.1% | 47.7% | 51.7% | 43.1% | 59.1% | 40.0% | 1996 | 25/27 | 5.6 | 5.7 | 53.7% | 71.0% | 48.5% | 58.3% | 38.5% | 60.4% | 37.9% |
| 25 | 1993 | 41/51 | 1.9 | 2.3 | 59.2% | 66.8% | 52.9% | 56.1% | 45.2% | 61.2% | 42.3% | 1997 | 5/5 | 3.0 | 4.0 | 54.9% | 54.9% | 45.0% | 51.2% | 43.5% | 50.0% | 40.2% |
| 26 | 1994 | 48/55 | 2.6 | 3.6 | 58.4% | 65.9% | 49.2% | 54.7% | 47.5% | 58.6% | 39.8% | 1998 | 4/5 | 2.8 | 5.5 | 61.8% | 67.3% | 34.9% | 59.2% | 66.1% | 54.8% | 39.8% |
| 27 | 1995 | 32/37 | 2.1 | 3.5 | 56.4% | 63.0% | 49.0% | 52.1% | 44.1% | 56.8% | 38.9% | 1999 | 2/3 | 4.5 | 4.0 | 64.3% | 58.9% | 46.9% | 38.9% | 21.4% | 54.0% | 34.7% |
| 28 | 1996 | 4/4 | 2.0 | 2.5 | 57.1% | 65.1% | 45.1% | 55.2% | 34.7% | 56.3% | 37.9% | 2000 | 2/2 | 1.5 | 5.5 | 56.9% | 57.1% | 51.5% | 35.4% | 25.9% | 54.5% | 35.5% |
Advanced Statistics Comparison by Age
Seasons are aligned by the age each player spent most of that calendar year. Metrics are precomputed from eligible main-draw results; point-stat values use the available detailed sample. Bold green marks the stronger value when both underlying samples are sufficient. Lower is better for Schedule because a negative value means a tougher schedule. Career Schedule is normalized per 100 matches.
| Age | Jaime Yzaga | Mark Knowles | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Schedule | |
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1988 | 1484 | 98.8 | — | — | — | — | — | — | — | 33.3% | -1.33 | 0–1 | — | +0.14 |
| 17 | 1985 | 1604 | 127.0 | — | — | — | — | +43 | -84 | — | 52.0% | +0.20 | 3–1 (75%) | 1–2 (33%) | +0.03 | 1989 | 1449 | 88.7 | — | — | — | — | — | — | — | 0.0% | -4.67 | — | — | +0.23 |
| 18 | 1986 | 1681 | 130.9 | — | — | — | — | +49 | -160 | — | 49.5% | -0.15 | 8–3 (73%) | 7–6 (54%) | +0.57 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 19 | 1987 | 1709 | 133.4 | — | — | — | — | +42 | -156 | -163 | 53.0% | +0.35 | 9–9 (50%) | 8–10 (44%) | +2.01 | 1991 | 1461 | 102.6 | +0.62 | -2.64 | 0.990 | 49.0% | +33 | — | — | 50.0% | -0.63 | — | 1–0 | +0.38 |
| 20 | 1988 | 1715 | 134.9 | — | — | — | — | +11 | -83 | — | 52.5% | +0.03 | 3–8 (27%) | 7–5 (58%) | +0.01 | 1992 | 1484 | 109.1 | -0.44 | +1.34 | 1.106 | 52.0% | — | — | — | 50.0% | +1.00 | — | 0–1 | +0.08 |
| 21 | 1989 | 1836 | 138.2 | — | — | — | — | -32 | -65 | — | 58.0% | +0.28 | 8–2 (80%) | 11–4 (73%) | -0.30 | 1993 | 1526 | 114.5 | +0.34 | +0.85 | 1.017 | 50.3% | +6 | — | — | 50.0% | 0.00 | 0–2 | 1–1 | +0.13 |
| 22 | 1990 | 1696 | 124.9 | — | — | — | — | -9 | +28 | — | 47.9% | -0.10 | 6–7 (46%) | 5–11 (31%) | +1.56 | 1994 | 1509 | 115.5 | -3.12 | +0.60 | 0.877 | 47.3% | -8 | — | — | 40.7% | -0.78 | 0–4 (0%) | 1–1 | -0.25 |
| 23 | 1991 | 1767 | 145.9 | -0.71 | +2.47 | 1.039 | 50.7% | +7 | +8 | — | 58.4% | +0.56 | 3–2 (60%) | 6–1 (86%) | -0.27 | 1995 | 1550 | 118.7 | -1.39 | -0.67 | 0.755 | 45.0% | -34 | — | — | 38.1% | -1.05 | 2–1 (67%) | 1–1 | -0.33 |
| 24 | 1992 | 1687 | 132.9 | -1.49 | +1.25 | 0.978 | 49.5% | +49 | +44 | — | 52.6% | +0.03 | 11–4 (73%) | 16–10 (62%) | +0.96 | 1996 | 1535 | 112.8 | -1.69 | -0.03 | 0.957 | 49.0% | -18 | -15 | +77 | 42.5% | -0.31 | 5–6 (45%) | 5–9 (36%) | +2.14 |
| 25 | 1993 | 1780 | 138.8 | +0.23 | +2.83 | 1.091 | 51.6% | +2 | -25 | — | 54.6% | +0.25 | 12–9 (57%) | 17–10 (63%) | +0.39 | 1997 | 1493 | 119.1 | -2.58 | +0.64 | 0.804 | 45.6% | -15 | — | — | 18.2% | -2.09 | 0–2 | 0–2 | -0.32 |
| 26 | 1994 | 1729 | 142.4 | -2.33 | +1.95 | 0.961 | 49.2% | +8 | +57 | — | 51.0% | -0.09 | 12–13 (48%) | 14–8 (64%) | -0.52 | 1998 | 1484 | 96.7 | -2.46 | -1.13 | 0.881 | 48.0% | — | — | +134 | 20.0% | -2.20 | 1–0 | — | +0.87 |
| 27 | 1995 | 1615 | 133.1 | -2.92 | +0.69 | 0.900 | 47.9% | +78 | +30 | — | 38.8% | -0.62 | 8–9 (47%) | 6–10 (38%) | -0.42 | 1999 | 1451 | 98.8 | -0.82 | -1.79 | 0.754 | 44.4% | +7 | — | — | 14.3% | -2.14 | 0–1 | — | +0.26 |
| 28 | 1996 | 1610 | 108.4 | -1.35 | -0.59 | 0.868 | 47.4% | +67 | — | — | 44.4% | -0.78 | — | — | +0.30 | 2000 | 1437 | 100.7 | -2.24 | -1.34 | 0.780 | 45.5% | — | — | — | 0.0% | -2.25 | — | — | +0.06 |
| 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2001 | 1421 | 96.8 | — | — | — | — | — | — | — | — | — | — | — | — |
| 31 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2003 | 1410 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Career | — | 1872 | 141.9 | -1.43 | +1.83 | 0.991 | 49.8% | +19 | -19 | -163 | 51.8% | +0.06 | 83–67 (55%) | 98–77 (56%) | +0.97 | — | 1623 | 115.1 | -1.54 | -0.20 | 0.906 | 48.1% | -6 | -15 | +98 | 36.7% | -0.88 | 8–17 (32%) | 9–15 (38%) | +4.52 |
Career Rivalries
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
Mark Knowles
all rivalries →| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Sebastien Lareau | 0 | 3 | 3 | Aug 16, 2000 | H2H |
| Jeff Tarango | 1 | 1 | 2 | Oct 20, 1999 | H2H |
| Chris Wilkinson | 1 | 1 | 2 | Jun 24, 1998 | H2H |
| Brett Steven | 1 | 1 | 2 | Jan 30, 1997 | H2H |
| Andrei Olhovskiy | 0 | 2 | 2 | May 8, 1996 | H2H |