H2H data updated: 2026-09-01 00:00 UTC

Jakob Hlasek vs Mark Koevermans H2H: 1-0

Jakob Hlasek holds a 1–0 lead over Mark Koevermans in their ATP head-to-head. Across 1 main-draw meeting, Jakob Hlasek leads 1–0 on carpet. Most recently, Jakob Hlasek won the 1990 Brussels round of 32 6-4 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.

Jakob Hlasek
SUI Age 61 Right-Handed 188 cm / 6'2"
H2H
1 – 0
1 main draw meetings
Mark Koevermans
NED Age 58 Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jakob Hlasek #42 6-4 6-1 Mark Koevermans #67 Match data Feb 15, 1990* R32 Brussels ATP Championship Series → modern equivalent ATP 500 Carpet

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
Jakob Hlasek #583 #7 1,308 2,062 393 302 56.5% 0 0 0 0 5 5
Mark Koevermans #753 #37 712 1,777 66 81 44.9% 0 0 0 0 1 1

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 Jakob Hlasek Mark Koevermans
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 1982 1–2 33.3% — 1,516 0 0 — — — — — — —
18 1983 5–6 45.5% #227 1,567 0 0 — — — — — — —
19 1984 16–19 45.7% #91 1,647 0 0 — — — — — — —
20 1985 29–23 55.8% #33 1,785 0 0 1988 0–1 0.0% #139 1,493 0 0
21 1986 35–25 58.3% #32 1,732 0 0 1989 12–11 52.2% #63 1,634 0 0
22 1987 32–21 60.4% #23 1,864 0 0 1990 26–19 57.8% #48 1,753 0 1
23 1988 46–15 75.4% #8 2,050 0 2 1991 16–25 39.0% #71 1,597 0 1
24 1989 23–18 56.1% #30 1,795 0 3 1992 12–20 37.5% #139 1,545 0 1
25 1990 41–22 65.1% #17 1,938 0 4 1993 0–5 0.0% #412 1,486 0 1
26 1991 45–25 64.3% #20 1,870 0 5 — — — — — — —
27 1992 26–23 53.1% #36 1,793 0 5 — — — — — — —
28 1993 20–25 44.4% #71 1,713 0 5 — — — — — — —
29 1994 22–24 47.8% #70 1,677 0 5 — — — — — — —
30 1995 32–27 54.2% #35 1,783 0 5 — — — — — — —
31 1996 20–27 42.6% #74 1,753 0 5 — — — — — — —

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 Jakob Hlasek Mark Koevermans
Yr HardClayGrassCarpet Yr HardClayGrassCarpet
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 1982 1 2 3 33.3% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18 1983 1 2 3 33.3% 0 2 2 0.0% 2 1 3 66.7% 2 1 3 66.7% — — — — — — — — — — — — — — — — —
19 1984 6 5 11 54.5% 2 6 8 25.0% 6 6 12 50.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
20 1985 9 8 17 52.9% 9 7 16 56.3% 2 2 4 50.0% 9 6 15 60.0% 1988 — — — — 0 1 1 0.0% — — — — — — — —
21 1986 6 9 15 40.0% 18 8 26 69.2% 2 1 3 66.7% 9 7 16 56.3% 1989 5 4 9 55.6% 3 4 7 42.9% — — — — 4 3 7 57.1%
22 1987 13 6 19 68.4% 6 7 13 46.2% 3 2 5 60.0% 10 6 16 62.5% 1990 7 5 12 58.3% 15 9 24 62.5% 3 1 4 75.0% 1 4 5 20.0%
23 1988 22 7 29 75.9% 8 4 12 66.7% 1 1 2 50.0% 15 3 18 83.3% 1991 4 8 12 33.3% 12 12 24 50.0% 0 1 1 0.0% 0 4 4 0.0%
24 1989 6 6 12 50.0% 4 5 9 44.4% 0 1 1 0.0% 13 6 19 68.4% 1992 1 5 6 16.7% 11 13 24 45.8% 0 1 1 0.0% 0 1 1 0.0%
25 1990 17 7 24 70.8% 5 6 11 45.5% 2 2 4 50.0% 17 7 24 70.8% 1993 — — — — 0 5 5 0.0% — — — — — — — —
26 1991 18 10 28 64.3% 5 3 8 62.5% 4 2 6 66.7% 18 10 28 64.3% — — — — — — — — — — — — — — — — —
27 1992 10 9 19 52.6% 4 5 9 44.4% 2 2 4 50.0% 10 7 17 58.8% — — — — — — — — — — — — — — — — —
28 1993 8 10 18 44.4% 1 4 5 20.0% 2 3 5 40.0% 9 8 17 52.9% — — — — — — — — — — — — — — — — —
29 1994 9 9 18 50.0% 3 4 7 42.9% 5 3 8 62.5% 5 8 13 38.5% — — — — — — — — — — — — — — — — —
30 1995 13 12 25 52.0% 8 5 13 61.5% 0 2 2 0.0% 11 8 19 57.9% — — — — — — — — — — — — — — — — —
31 1996 10 13 23 43.5% 2 4 6 33.3% 5 3 8 62.5% 3 7 10 30.0% — — — — — — — — — — — — — — — — —
Career — 149 115 264 56.4% 75 70 145 51.7% 36 31 67 53.7% 133 86 219 60.7% — 17 22 39 43.6% 41 44 85 48.2% 3 3 6 50.0% 5 12 17 29.4%

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 Jakob Hlasek 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 1982 1516 114.8 — — — — +52 — — 37.5% -1.00 1–1 1–0 — -0.29 — — — — — — — — — — — — — — — —
18 1983 1567 112.2 — — — — +8 — +34 46.7% -0.03 2–1 (67%) 4–1 (80%) — +0.84 — — — — — — — — — — — — — — — —
19 1984 1648 128.9 — — — — +9 -160 +14 43.7% -0.39 5–4 (56%) 5–6 (45%) — +1.04 — — — — — — — — — — — — — — — —
20 1985 1785 145.6 — — — — +2 -156 -119 54.0% +0.12 7–5 (58%) 10–7 (59%) — -1.17 1988 1493 106.4 — — — — — — — 33.3% -0.67 0–1 1–1 — -0.10
21 1986 1733 142.9 — — — — -50 +67 -41 55.9% +0.32 11–10 (52%) 16–10 (62%) — +0.10 1989 1634 132.7 — — — — +3 -82 — 50.0% +0.11 2–1 (67%) 2–2 (50%) — +0.70
22 1987 1865 151.8 — — — — +13 -128 -111 58.0% +0.44 7–5 (58%) 8–6 (57%) — -2.72 1990 1754 136.3 — — — — -104 +4 -109 52.9% +0.28 13–5 (72%) 6–10 (38%) — +1.01
23 1988 2050 159.4 — — — — +34 -279 — 64.7% +0.98 18–5 (78%) 15–15 (50%) — -1.83 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 1989 1795 146.3 — — — — +95 -38 — 55.5% +0.60 8–10 (44%) 8–14 (36%) — -0.85 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 1990 1938 151.4 — — — — +52 -214 -223 59.5% +0.50 12–7 (63%) 15–11 (58%) — -0.05 1993 1486 101.6 -2.05 -3.43 0.689 42.8% — +104 — 15.4% -2.46 0–2 1–0 — +0.01
26 1991 1871 151.6 +3.96 -0.75 1.078 51.3% +40 -73 -130 59.6% +0.57 15–8 (65%) 20–19 (51%) — -0.58 — — — — — — — — — — — — — — — —
27 1992 1793 147.3 +1.45 +1.86 1.055 50.6% +38 -51 -34 51.2% +0.10 9–5 (64%) 5–14 (26%) — -1.64 — — — — — — — — — — — — — — — —
28 1993 1714 144.6 +1.45 -0.65 0.976 49.5% +42 -38 +41 44.5% -0.09 10–7 (59%) 10–14 (42%) — -1.57 — — — — — — — — — — — — — — — —
29 1994 1677 138.4 +1.07 -1.27 0.973 49.5% +6 -6 +136 45.4% -0.19 6–2 (75%) 11–10 (52%) — -1.32 — — — — — — — — — — — — — — — —
30 1995 1783 142.6 +1.21 +0.39 1.019 50.3% -17 -53 — 53.3% +0.30 11–11 (50%) 18–13 (58%) — -1.57 — — — — — — — — — — — — — — — —
31 1996 1753 139.5 +1.73 -2.17 0.951 48.9% -38 -49 +20 47.5% -0.16 3–9 (25%) 13–12 (52%) — -1.84 — — — — — — — — — — — — — — — —
Career — 2062 152.1 +1.95 -0.42 1.014 50.1% +20 -84 -20 54.0% +0.28 125–90 (58%) 159–152 (51%) 103.8 -1.94 — 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

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.