H2H data updated: 2026-09-05 00:00 UTC

Guillermo Perez-Roldan vs Lars Koslowski H2H: 1-1

Guillermo Perez-Roldan and Lars Koslowski are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, Guillermo Perez-Roldan leads 1–0 on clay, while Lars Koslowski leads 1–0 on hard courts. Most recently, Lars Koslowski won the 1992 Guaruja round of 32 4-6 6-3 3-0 RET.

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Guillermo Perez-Roldan
ARG Age 56 Right-Handed 178 cm / 5'10"
H2H
1 – 1
2 main draw meetings
Lars Koslowski
GER Age 55 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Lars Koslowski #125 4-6 6-3 3-0 (ret.) Guillermo Perez-Roldan #42 Match data Oct 29, 1992* R32 Guaruja ATP World Series → modern equivalent ATP 250 Hard
Guillermo Perez-Roldan #47 6-2 6-0 Lars Koslowski #66 Match data Jul 9, 1992* R32 Swedish Open 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.

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
Guillermo Perez-Roldan #1,461 #13 1,222 1,932 236 129 64.7% 0 0 0 0 9 9
Lars Koslowski #1,378 #63 576 1,658 17 28 37.8% 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 Guillermo Perez-Roldan Lars Koslowski
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1986 9–7 56.2% #109 1,590 0 0 — — — — — — —
17 1987 40–15 72.7% #19 1,809 0 3 — — — — — — —
18 1988 43–19 69.4% #18 1,836 0 4 1989 1–1 50.0% #520 1,512 0 0
19 1989 33–16 67.3% #32 1,808 0 5 — — — — — — —
20 1990 41–21 66.1% #14 1,789 0 6 1991 4–2 66.7% #89 1,590 0 0
21 1991 26–16 61.9% #40 1,767 0 7 1992 10–20 33.3% #116 1,520 0 0
22 1992 24–18 57.1% #50 1,646 0 8 1993 2–5 28.6% #252 1,511 0 0
23 1993 19–11 63.3% #82 1,754 0 9 — — — — — — —
26 1996 1–6 14.3% #420 1,650 0 9 — — — — — — —

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 Guillermo Perez-Roldan Lars Koslowski
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 %
16 1986 — — — — 9 7 16 56.3% — — — — — — — — — — — — — — — — — — — — — — — — —
17 1987 0 1 1 0.0% 40 14 54 74.1% — — — — — — — — — — — — — — — — — — — — — — — — —
18 1988 2 4 6 33.3% 41 14 55 74.5% — — — — 0 1 1 0.0% 1989 — — — — 1 1 2 50.0% — — — — — — — —
19 1989 2 4 6 33.3% 31 12 43 72.1% — — — — — — — — — — — — — — — — — — — — — — — — —
20 1990 — — — — 41 19 60 68.3% — — — — 0 2 2 0.0% 1991 — — — — 4 1 5 80.0% — — — — 0 1 1 0.0%
21 1991 3 3 6 50.0% 23 13 36 63.9% — — — — — — — — 1992 7 6 13 53.8% 3 11 14 21.4% 0 1 1 0.0% 0 2 2 0.0%
22 1992 0 2 2 0.0% 24 16 40 60.0% — — — — — — — — 1993 2 3 5 40.0% 0 2 2 0.0% — — — — — — — —
23 1993 — — — — 19 11 30 63.3% — — — — — — — — — — — — — — — — — — — — — — — — —
26 1996 — — — — 1 6 7 14.3% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 7 14 21 33.3% 229 112 341 67.2% — — — — 0 3 3 0.0% — 9 9 18 50.0% 8 15 23 34.8% 0 1 1 0.0% 0 3 3 0.0%

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 Guillermo Perez-Roldan Lars Koslowski
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
16 1986 1590 122.7 — — — — — +35 — 55.0% +0.40 4–4 (50%) 0–1 — +1.20 — — — — — — — — — — — — — — — —
17 1987 1810 140.7 — — — — — +62 — 64.3% +0.99 13–4 (76%) 8–7 (53%) 106.8 +3.71 — — — — — — — — — — — — — — — —
18 1988 1837 152.0 — — — — -321 +113 — 65.8% +1.04 8–8 (50%) 12–5 (71%) 102.3 0.00 1989 1512 104.3 — — — — — — — 40.0% +0.20 1–0 — — -0.08
19 1989 1809 142.5 — — — — -303 +105 — 61.3% +0.93 10–4 (71%) 8–5 (62%) 103.0 +0.62 — — — — — — — — — — — — — — — —
20 1990 1790 146.4 — — — — — +115 — 61.7% +0.72 14–4 (78%) 14–9 (61%) 105.9 +0.84 1991 1590 126.9 +0.99 +1.88 1.031 50.4% — +70 — 66.7% +0.13 1–2 (33%) 4–0 (100%) 104.0 -0.17
21 1991 1768 144.4 — — — — -256 +86 — 63.0% +1.03 7–6 (54%) 8–5 (62%) 100.4 +0.53 1992 1521 111.0 -5.44 -1.07 0.828 46.1% +38 +28 — 33.3% -1.25 2–3 (40%) 4–5 (44%) 99.2 +1.25
22 1992 1647 130.7 — — — — — +96 — 57.1% +0.64 8–5 (62%) 8–6 (57%) 101.3 +3.10 1993 1512 97.2 -4.03 -2.60 0.715 43.1% +47 — — 26.3% -2.21 2–0 2–0 — +0.32
23 1993 1755 138.4 — — — — — +70 — 59.4% +0.25 7–2 (78%) 11–2 (85%) 112.7 -0.09 — — — — — — — — — — — — — — — —
26 1996 1650 104.7 — — — — — +48 — 13.3% -2.40 — 0–1 — -0.23 — — — — — — — — — — — — — — — —
Career — 1933 147.3 — — — — -295 +91 — 61.1% +0.77 71–37 (66%) 69–41 (63%) 111.4 +2.65 — 1659 113.6 -4.30 -0.96 0.829 46.1% +40 +39 — 37.0% -1.16 6–5 (55%) 10–5 (67%) 108.1 +2.93

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.