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

Mark Keil vs Nicolas Pereira H2H: 1-0

Mark Keil holds a 1–0 lead over Nicolas Pereira in their ATP head-to-head. Across 1 main-draw meeting, Mark Keil leads 1–0 on hard courts. Most recently, Mark Keil won the 1993 Australian Open round of 128 7-6(5) 1-6 6-0 6-2.

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Mark Keil
USA Age 59 Right-Handed 185 cm / 6'1"
H2H
1 – 0
1 main draw meetings
Nicolas Pereira
VEN Age 55 Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Mark Keil #747 7-6(5) 1-6 6-0 6-2 Nicolas Pereira #130 Match data Jan 20, 1993* R128 Australian Open Grand Slam 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
Mark Keil #1,308 #167 195 1,545 4 8 33.3% 0 0 0 0 0 0
Nicolas Pereira #1,101 #74 658 1,690 64 115 35.8% 0 0 0 0 2 2

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 Mark Keil Nicolas Pereira
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1988 2–2 50.0% #151 1,526 0 0
18 — — — — — — — 1989 12–21 36.4% #121 1,582 0 0
19 — — — — — — — 1990 5–15 25.0% #238 1,503 0 0
20 — — — — — — — 1991 2–6 25.0% #145 1,483 0 0
21 1988 0–1 0.0% #885 1,495 0 0 1992 0–1 0.0% #129 1,466 0 0
22 — — — — — — — 1993 4–11 26.7% #142 1,472 0 0
23 — — — — — — — 1994 10–14 41.7% #116 1,547 0 1
24 1991 3–3 50.0% #200 1,517 0 0 1995 14–18 43.8% #122 1,610 0 1
25 1992 0–1 0.0% #742 1,510 0 0 1996 15–20 42.9% #110 1,570 0 2
26 1993 1–2 33.3% #537 1,490 0 0 1997 0–7 0.0% #472 1,489 0 2
27 1994 0–1 0.0% #878 1,488 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 Mark Keil Nicolas Pereira
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 — — — — — — — — — — — — — — — — — 1988 1 1 2 50.0% 1 1 2 50.0% — — — — — — — —
18 — — — — — — — — — — — — — — — — — 1989 9 12 21 42.9% 1 4 5 20.0% 1 3 4 25.0% 1 2 3 33.3%
19 — — — — — — — — — — — — — — — — — 1990 4 10 14 28.6% 0 3 3 0.0% — — — — 1 2 3 33.3%
20 — — — — — — — — — — — — — — — — — 1991 1 4 5 20.0% — — — — 0 1 1 0.0% 1 1 2 50.0%
21 1988 0 1 1 0.0% — — — — — — — — — — — — 1992 — — — — 0 1 1 0.0% — — — — — — — —
22 — — — — — — — — — — — — — — — — — 1993 2 5 7 28.6% 1 2 3 33.3% 1 4 5 20.0% — — — —
23 — — — — — — — — — — — — — — — — — 1994 1 4 5 20.0% 5 3 8 62.5% 3 4 7 42.9% 1 3 4 25.0%
24 1991 — — — — — — — — 2 2 4 50.0% 1 1 2 50.0% 1995 8 9 17 47.1% 6 7 13 46.2% 0 2 2 0.0% — — — —
25 1992 0 1 1 0.0% — — — — — — — — — — — — 1996 7 11 18 38.9% 1 4 5 20.0% 6 3 9 66.7% 1 2 3 33.3%
26 1993 1 1 2 50.0% — — — — 0 1 1 0.0% — — — — 1997 0 5 5 0.0% 0 1 1 0.0% 0 1 1 0.0% — — — —
27 1994 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1 4 5 20.0% — — — — 2 3 5 40.0% 1 1 2 50.0% — 33 61 94 35.1% 15 26 41 36.6% 11 18 29 37.9% 5 10 15 33.3%

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 10/11 of Mark Keil's and 102/122 of Nicolas Pereira'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 Mark Keil Nicolas Pereira
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%
20 — —/— — — — — — — — — — 1991 8/8 5.6 2.9 57.3% 68.6% 47.3% 54.5% 29.8% 59.6% 33.7%
21 — —/— — — — — — — — — — 1992 1/1 7.0 8.0 49.5% 61.2% 44.0% 55.6% 50.0% 52.5% 36.2%
22 — —/— — — — — — — — — — 1993 13/15 6.1 4.8 59.3% 71.0% 41.2% 49.3% 35.4% 58.4% 33.1%
23 — —/— — — — — — — — — — 1994 18/24 6.6 3.1 61.4% 73.1% 47.4% 58.0% 35.6% 63.6% 32.1%
24 1991 5/6 5.6 5.8 60.2% 68.5% 48.3% 67.6% 35.1% 60.1% 39.2% 1995 25/32 6.6 2.9 61.2% 73.1% 47.8% 61.6% 38.7% 63.3% 35.1%
25 1992 1/1 2.0 5.0 62.2% 72.5% 41.9% 66.7% 20.0% 61.0% 32.5% 1996 30/35 5.7 2.9 60.9% 73.0% 48.5% 60.2% 34.1% 63.3% 35.3%
26 1993 3/3 7.0 7.7 64.2% 73.8% 34.0% 58.9% 31.5% 59.3% 34.9% 1997 7/7 5.0 3.9 63.7% 67.8% 38.3% 56.6% 32.2% 57.2% 29.0%
27 1994 1/1 0.0 5.0 46.9% 56.5% 34.6% 33.3% — 44.9% 22.0% — —/— — — — — — — — — —
Career — 10/12 5.1 6.2 60.3% 69.3% 42.0% 61.5% 29.0% 58.4% 35.5% — 102/179 6.1 3.3 60.7% 72.0% 46.4% 58.0% 35.3% 61.9% 33.9%

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 Mark Keil Nicolas Pereira
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 — — — — — — — — — — — — — — — — 1988 1527 112.7 — — — — — — — 55.6% +0.22 0–1 1–1 — -0.20
18 — — — — — — — — — — — — — — — — 1989 1583 133.9 — — — — +11 -61 -18 42.2% -0.60 2–7 (22%) 10–6 (63%) 101.5 -1.22
19 — — — — — — — — — — — — — — — — 1990 1504 113.9 — — — — +43 -15 — 30.6% -1.25 1–3 (25%) 6–6 (50%) 97.7 +0.53
20 — — — — — — — — — — — — — — — — 1991 1483 107.0 -0.60 -1.86 0.833 47.2% +34 — — 31.6% -0.90 1–2 (33%) 1–4 (20%) 96.4 +0.13
21 1988 1495 105.0 — — — — — — — 0.0% -3.00 — — — -0.21 1992 1467 98.9 +0.20 -0.48 0.762 44.6% — — — 33.3% -1.33 0–1 0–1 — +0.23
22 — — — — — — — — — — — — — — — — 1993 1472 114.4 -1.19 -3.12 0.797 46.3% +45 0 +69 35.7% -1.07 1–3 (25%) 2–3 (40%) 96.6 +0.31
23 — — — — — — — — — — — — — — — — 1994 1547 123.5 +1.64 -3.77 0.880 47.9% -65 +8 +37 42.9% -0.41 5–4 (56%) 6–6 (50%) 102.8 +0.90
24 1991 1517 101.3 -0.67 +1.80 0.983 49.6% — — +60 43.8% -0.75 2–1 (67%) 4–0 (100%) 104.6 -0.08 1995 1610 125.6 +1.27 -1.84 0.956 49.4% -25 -18 — 47.1% -0.32 3–7 (30%) 5–12 (29%) 91.0 +0.61
25 1992 1510 104.3 -1.82 +3.30 0.833 46.9% — — — 0.0% -1.50 — 0–1 — -0.12 1996 1570 123.0 +1.01 -1.88 0.962 49.1% +2 -46 +100 45.9% -0.53 3–7 (30%) 8–8 (50%) 96.1 +1.11
26 1993 1490 100.1 -2.99 -0.92 0.858 47.2% — — — 41.7% -0.92 — 2–1 (67%) — +0.61 1997 1489 103.4 -1.59 -3.08 0.679 43.7% +28 — — 11.1% -2.33 0–1 1–1 — -0.21
27 1994 1488 104.9 +2.99 +2.01 0.398 34.4% — — — 0.0% -4.50 — — — -0.20 — — — — — — — — — — — — — — — —
Career — 1546 105.6 -1.12 +1.16 0.855 47.1% — — +60 35.3% -1.21 2–1 (67%) 6–2 (75%) 104.6 0.00 — 1690 127.5 +0.59 -2.43 0.889 48.0% +7 -20 +57 40.6% -0.69 16–36 (31%) 40–48 (45%) 90.2 +1.22

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.