H2H data updated: 2026-09-08 00:00 UTC

Guillermo Perez-Roldan vs George Kalovelonis H2H: 1-0

Guillermo Perez-Roldan holds a 1–0 lead over George Kalovelonis in their ATP head-to-head. Across 1 main-draw meeting, Guillermo Perez-Roldan leads 1–0 on clay. Most recently, Guillermo Perez-Roldan won the 1987 Athens round of 32 6-2 6-2.

Want to explore more matchups? Advanced rivalry search lets you browse current and historical rivalries, unbeaten records, or every matchup for a player.

Guillermo Perez-Roldan
ARG Age 56 Right-Handed 178 cm / 5'10"
H2H
1 – 0
1 main-draw meetings
George Kalovelonis
GRE Age 67 Right-Handed 190 cm / 6'3"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Guillermo Perez-Roldan #56 6-2 6-2 George Kalovelonis #328 Match data Jun 18, 1987* R32 Athens 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
George Kalovelonis #1,301 #208 1 1,541 3 11 21.4% 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 George Kalovelonis
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 — — — — — — —
19 1989 33–16 67.3% #32 1,808 0 5 — — — — — — —
20 1990 41–21 66.1% #14 1,789 0 6 — — — — — — —
21 1991 26–16 61.9% #40 1,767 0 7 — — — — — — —
22 1992 24–18 57.1% #50 1,646 0 8 — — — — — — —
23 1993 19–11 63.3% #82 1,754 0 9 1983 1–1 50.0% #576 1,522 0 0
24 — — — — — — — 1984 0–1 0.0% #283 1,519 0 0
26 1996 1–6 14.3% #420 1,650 0 9 1986 1–1 50.0% #285 1,528 0 0
27 — — — — — — — 1987 0–1 0.0% #542 1,519 0 0
28 — — — — — — — 1988 1–2 33.3% #473 1,504 0 0
29 — — — — — — — 1989 0–1 0.0% #1103 1,496 0 0
30 — — — — — — — 1990 0–1 0.0% #1007 1,481 0 0
31 — — — — — — — 1991 0–1 0.0% #1131 1,464 0 0
33 — — — — — — — 1993 0–1 0.0% #1178 1,459 0 0
34 — — — — — — — 1994 0–1 0.0% #1219 1,451 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 Guillermo Perez-Roldan George Kalovelonis
Yr HardClayCarpet Yr HardClayCarpet
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% — — — — — — — — — — — — —
19 1989 2 4 6 33.3% 31 12 43 72.1% — — — — — — — — — — — — — — — — —
20 1990 — — — — 41 19 60 68.3% 0 2 2 0.0% — — — — — — — — — — — — —
21 1991 3 3 6 50.0% 23 13 36 63.9% — — — — — — — — — — — — — — — — —
22 1992 0 2 2 0.0% 24 16 40 60.0% — — — — — — — — — — — — — — — — —
23 1993 — — — — 19 11 30 63.3% — — — — 1983 — — — — 1 1 2 50.0% — — — —
24 — — — — — — — — — — — — — 1984 — — — — 0 1 1 0.0% — — — —
26 1996 — — — — 1 6 7 14.3% — — — — 1986 — — — — 1 1 2 50.0% — — — —
27 — — — — — — — — — — — — — 1987 — — — — 0 1 1 0.0% — — — —
28 — — — — — — — — — — — — — 1988 0 1 1 0.0% 1 1 2 50.0% — — — —
29 — — — — — — — — — — — — — 1989 — — — — 0 1 1 0.0% — — — —
30 — — — — — — — — — — — — — 1990 — — — — 0 1 1 0.0% — — — —
31 — — — — — — — — — — — — — 1991 — — — — 0 1 1 0.0% — — — —
33 — — — — — — — — — — — — — 1993 — — — — 0 1 1 0.0% — — — —
34 — — — — — — — — — — — — — 1994 — — — — 0 1 1 0.0% — — — —
Career — 7 14 21 33.3% 229 112 341 67.2% 0 3 3 0.0% — 0 1 1 0.0% 3 10 13 23.1% — — — —

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 George Kalovelonis
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 — — — — — — — — — — — — — — — —
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 — — — — — — — — — — — — — — — —
21 1991 1768 144.4 — — — — -256 +86 — 63.0% +1.03 7–6 (54%) 8–5 (62%) 100.4 +0.53 — — — — — — — — — — — — — — — —
22 1992 1647 130.7 — — — — — +96 — 57.1% +0.64 8–5 (62%) 8–6 (57%) 101.3 +3.10 — — — — — — — — — — — — — — — —
23 1993 1755 138.4 — — — — — +70 — 59.4% +0.25 7–2 (78%) 11–2 (85%) 112.7 -0.09 1983 1523 113.3 — — — — — — — 60.0% +0.80 0–1 — — -0.22
24 — — — — — — — — — — — — — — — — 1984 1520 106.2 — — — — — — — 0.0% -3.00 — — — -0.22
26 1996 1650 104.7 — — — — — +48 — 13.3% -2.40 — 0–1 — -0.23 1986 1529 107.7 — — — — — — — 60.0% +1.60 0–1 0–2 — +0.09
27 — — — — — — — — — — — — — — — — 1987 1519 99.9 — — — — — — — 0.0% -4.00 — — — -0.03
28 — — — — — — — — — — — — — — — — 1988 1504 101.1 — — — — — — — 44.4% -0.78 — 2–0 — +0.50
29 — — — — — — — — — — — — — — — — 1989 1497 104.6 — — — — — — — 0.0% -3.50 — — — -0.09
30 — — — — — — — — — — — — — — — — 1990 1482 95.6 — — — — — — — 0.0% -4.00 — — — +0.17
31 — — — — — — — — — — — — — — — — 1991 1464 98.7 +1.65 -6.96 0.875 48.1% — — — 33.3% -0.67 0–1 — — +0.25
33 — — — — — — — — — — — — — — — — 1993 1459 103.2 -1.13 -3.34 0.467 37.0% — — — 0.0% -4.00 — — — -0.13
34 — — — — — — — — — — — — — — — — 1994 1451 94.8 +0.26 -2.86 0.547 36.3% — — — 0.0% -5.00 — — — -0.03
Career — 1933 147.3 — — — — -295 +91 — 61.1% +0.77 71–37 (66%) 69–41 (63%) 111.4 +2.65 — 1542 108.8 +0.26 -4.39 0.616 40.5% — — — 32.4% -1.30 0–3 (0%) 2–2 (50%) 97.1 +2.07

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.