H2H data updated: 2026-09-03 00:00 UTC
Mark Koevermans holds a 1–0 lead over Sasa Hirszon in their ATP head-to-head. Across 1 main-draw meeting, Mark Koevermans leads 1–0 on clay. Most recently, Mark Koevermans won the 1990 Croatia Open Umag round of 32 7-6 6-3.
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| Player | Score | Player | Match Data | Date | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|
| Mark Koevermans | 7-6 6-3 | Sasa Hirszon | Match data | May 17, 1990* | R32 | Croatia Open Umag | ATP World Series → modern equivalent ATP 250 | Clay |
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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sasa Hirszon | #1,072 | #214 | 163 | 1,518 | 3 | 11 | 21.4% | 0 | 0 | 0 | 0 | 0 | 0 |
| Mark Koevermans | #753 | #37 | 712 | 1,777 | 66 | 81 | 44.9% | 0 | 0 | 0 | 0 | 1 | 1 |
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 | Sasa Hirszon | Mark Koevermans | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | W-L | Win % | Rank | Elo | GS | Titles | Yr | W-L | Win % | Rank | Elo | GS | Titles | |
| 17 | 1990 | 1–2 | 33.3% | #350 | 1,503 | 0 | 0 | — | — | — | — | — | — | — |
| 18 | 1991 | 0–1 | 0.0% | #250 | 1,499 | 0 | 0 | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | 1988 | 0–1 | 0.0% | #139 | 1,493 | 0 | 0 |
| 21 | 1994 | 0–1 | 0.0% | #327 | 1,488 | 0 | 0 | 1989 | 12–11 | 52.2% | #63 | 1,634 | 0 | 0 |
| 22 | 1995 | 0–2 | 0.0% | #454 | 1,471 | 0 | 0 | 1990 | 26–19 | 57.8% | #48 | 1,753 | 0 | 1 |
| 23 | 1996 | 2–3 | 40.0% | #344 | 1,489 | 0 | 0 | 1991 | 16–25 | 39.0% | #71 | 1,597 | 0 | 1 |
| 24 | 1997 | 0–2 | 0.0% | #1281 | 1,465 | 0 | 0 | 1992 | 12–20 | 37.5% | #139 | 1,545 | 0 | 1 |
| 25 | — | — | — | — | — | — | — | 1993 | 0–5 | 0.0% | #412 | 1,486 | 0 | 1 |
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 | Sasa Hirszon | Mark Koevermans | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 % | |||
| 17 | 1990 | — | — | — | — | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1991 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1988 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — |
| 21 | 1994 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | — | — | — | — | 1989 | 5 | 4 | 9 | 55.6% | 3 | 4 | 7 | 42.9% | — | — | — | — | 4 | 3 | 7 | 57.1% |
| 22 | 1995 | — | — | — | — | 0 | 2 | 2 | 0.0% | — | — | — | — | — | — | — | — | 1990 | 7 | 5 | 12 | 58.3% | 15 | 9 | 24 | 62.5% | 3 | 1 | 4 | 75.0% | 1 | 4 | 5 | 20.0% |
| 23 | 1996 | 1 | 2 | 3 | 33.3% | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 50.0% | 1991 | 4 | 8 | 12 | 33.3% | 12 | 12 | 24 | 50.0% | 0 | 1 | 1 | 0.0% | 0 | 4 | 4 | 0.0% |
| 24 | 1997 | — | — | — | — | 0 | 1 | 1 | 0.0% | — | — | — | — | 0 | 1 | 1 | 0.0% | 1992 | 1 | 5 | 6 | 16.7% | 11 | 13 | 24 | 45.8% | 0 | 1 | 1 | 0.0% | 0 | 1 | 1 | 0.0% |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1993 | — | — | — | — | 0 | 5 | 5 | 0.0% | — | — | — | — | — | — | — | — |
| Career | — | 1 | 2 | 3 | 33.3% | 1 | 7 | 8 | 12.5% | — | — | — | — | 1 | 2 | 3 | 33.3% | — | 17 | 22 | 39 | 43.6% | 41 | 44 | 85 | 48.2% | 3 | 3 | 6 | 50.0% | 5 | 12 | 17 | 29.4% |
Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 8/9 of Sasa Hirszon's and 68/78 of Mark Koevermans'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 | Sasa Hirszon | Mark Koevermans | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% | |
| 22 | 1995 | 2/2 | 3.5 | 2.0 | 54.1% | 73.6% | 46.2% | 61.7% | 32.5% | 61.0% | 31.5% | — | —/— | — | — | — | — | — | — | — | — | — |
| 23 | 1996 | 5/5 | 5.4 | 3.4 | 55.9% | 70.9% | 56.4% | 54.2% | 33.3% | 64.5% | 40.1% | 1991 | 39/41 | 3.0 | 2.0 | 53.9% | 68.7% | 44.7% | 57.3% | 41.1% | 57.7% | 39.6% |
| 24 | 1997 | 1/2 | 0.0 | 1.0 | 65.0% | 42.3% | 50.0% | 20.0% | 0.0% | 45.0% | 26.9% | 1992 | 24/32 | 3.5 | 1.7 | 55.8% | 68.5% | 49.8% | 48.5% | 39.0% | 59.6% | 37.8% |
| 25 | — | —/— | — | — | — | — | — | — | — | — | — | 1993 | 5/5 | 3.0 | 2.2 | 58.2% | 56.0% | 43.9% | 43.0% | 36.6% | 51.0% | 33.8% |
| Career | — | 8/14 | 4.3 | 2.8 | 56.6% | 68.0% | 53.1% | 51.8% | 28.9% | 61.2% | 36.3% | — | 68/147 | 3.2 | 1.9 | 54.9% | 67.7% | 46.5% | 53.1% | 40.0% | 57.8% | 38.6% |
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 | Sasa Hirszon | Mark Koevermans | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | Yr | Elo | P+ | Serve+ | Return+ | PD | TPW% | Hard Elo | Clay Elo | Grass Elo | Set Win % | Set Margin | Dec. Set | Tiebreak | Pressure+ | Schedule | |
| 17 | 1990 | 1503 | 101.8 | — | — | — | — | — | +38 | — | 20.0% | -1.00 | 0–1 | 0–2 | — | -0.01 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 1991 | 1500 | 106.0 | — | — | — | — | — | — | — | 0.0% | -3.00 | — | — | — | -0.19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1988 | 1493 | 106.4 | — | — | — | — | — | — | — | 33.3% | -0.67 | 0–1 | 1–1 | — | -0.10 |
| 21 | 1994 | 1489 | — | — | — | — | — | — | — | — | — | — | — | — | — | +0.01 | 1989 | 1634 | 132.7 | — | — | — | — | +3 | -82 | — | 50.0% | +0.11 | 2–1 (67%) | 2–2 (50%) | — | +0.70 |
| 22 | 1995 | 1471 | 105.7 | +0.03 | -1.35 | 0.808 | 46.9% | — | — | — | 33.3% | -1.17 | 0–2 | 1–1 | — | -0.02 | 1990 | 1754 | 136.3 | — | — | — | — | -104 | +4 | -109 | 52.9% | +0.28 | 13–5 (72%) | 6–10 (38%) | — | +1.01 |
| 23 | 1996 | 1489 | 104.6 | +0.16 | -0.09 | 1.130 | 51.7% | +47 | — | — | 30.0% | -0.80 | 1–1 | 0–2 | — | +0.24 | 1991 | 1597 | 132.1 | -2.18 | +0.19 | 0.936 | 48.7% | -42 | +156 | — | 43.1% | -0.42 | 3–10 (23%) | 3–7 (30%) | — | +0.74 |
| 24 | 1997 | 1465 | 96.4 | -1.74 | -2.68 | 0.490 | 34.8% | — | — | — | 0.0% | -3.00 | — | 0–1 | — | +0.19 | 1992 | 1546 | 118.8 | -1.22 | -1.57 | 0.936 | 48.5% | -47 | +137 | — | 40.0% | -0.41 | 4–8 (33%) | 1–7 (13%) | — | +2.50 |
| 25 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1993 | 1486 | 101.6 | -2.05 | -3.43 | 0.689 | 42.8% | — | +104 | — | 15.4% | -2.46 | 0–2 | 1–0 | — | +0.01 |
| Career | — | 1518 | 105.7 | -0.11 | -0.73 | 0.936 | 48.4% | +47 | +38 | — | 22.2% | -1.41 | 1–4 (20%) | 1–6 (14%) | 94.3 | +1.57 | — | 1777 | 133.6 | -1.83 | -0.70 | 0.915 | 48.2% | -49 | +84 | -109 | 45.6% | -0.19 | 22–27 (45%) | 14–27 (34%) | 93.3 | +3.31 |
Each player's five most-played main-draw opponents. The current matchup is highlighted when it appears in a player's top five.
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Emilio Sanchez | 0 | 2 | 2 | Aug 25, 1994 | H2H |
| Javier Sanchez | 0 | 1 | 1 | Jul 24, 1997 | H2H |
| Gaston Etlis | 0 | 1 | 1 | Jan 30, 1997 | H2H |
| Cristiano Caratti | 0 | 1 | 1 | Aug 14, 1996 | H2H |
| Jason Stoltenberg | 0 | 1 | 1 | Aug 8, 1996 | H2H |
| Opponent | W | L | M | Last Played | H2H |
|---|---|---|---|---|---|
| Sergi Bruguera | 4 | 2 | 6 | Aug 2, 1992 | H2H |
| Patrik Kuhnen | 1 | 3 | 4 | Jun 1, 1990 | H2H |
| Horst Skoff | 0 | 3 | 3 | Mar 18, 1993 | H2H |
| Lars Koslowski | 1 | 2 | 3 | May 22, 1992 | H2H |
| Horacio de la Pena | 1 | 2 | 3 | Apr 8, 1992 | H2H |