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

Glenn Layendecker vs Pieter Aldrich H2H: 1-1

Glenn Layendecker and Pieter Aldrich are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, they are tied 1–1 on hard courts. Most recently, Pieter Aldrich won the 1989 US Open round of 128 6-1 4-6 4-6 6-3 7-6.

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Glenn Layendecker
USA Age 65 Left-Handed 185 cm / 6'1"
H2H
1 – 1
2 main draw meetings
Pieter Aldrich
RSA Age 60 Right-Handed 180 cm / 5'11"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Pieter Aldrich #75 6-1 4-6 4-6 6-3 7-6 Glenn Layendecker #77 Match data Aug 30, 1989* R128 US Open Grand Slam Hard
Glenn Layendecker #206 7-5 7-6 Pieter Aldrich #91 Match data Oct 8, 1988* QF Scottsdale ATP 250 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
Glenn Layendecker #804 #48 447 1,733 77 104 42.5% 0 0 0 0 0 0
Pieter Aldrich #1,122 #64 256 1,675 36 40 47.4% 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 Glenn Layendecker Pieter Aldrich
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 — — — — — — — 1986 1–1 50.0% #275 1,512 0 0
21 — — — — — — — 1987 1–1 50.0% #134 1,535 0 0
22 — — — — — — — 1988 15–15 50.0% #68 1,662 0 0
23 1984 3–12 20.0% #174 1,468 0 0 1989 13–19 40.6% #125 1,619 0 0
24 1985 10–11 47.6% #118 1,526 0 0 1990 6–4 60.0% #192 1,663 0 1
25 1986 17–17 50.0% #73 1,663 0 0 — — — — — — —
26 1987 1–12 7.7% #353 1,517 0 0 — — — — — — —
27 1988 9–8 52.9% #78 1,610 0 0 — — — — — — —
28 1989 17–18 48.6% #87 1,651 0 0 — — — — — — —
29 1990 12–14 46.2% #134 1,629 0 0 — — — — — — —
30 1991 6–8 42.9% #135 1,611 0 0 — — — — — — —
31 1992 2–4 33.3% #353 1,598 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 Glenn Layendecker Pieter Aldrich
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 %
20 — — — — — — — — — — — — — — — — — 1986 1 1 2 50.0% — — — — — — — — — — — —
21 — — — — — — — — — — — — — — — — — 1987 1 1 2 50.0% — — — — — — — — — — — —
22 — — — — — — — — — — — — — — — — — 1988 11 10 21 52.4% 0 1 1 0.0% 4 4 8 50.0% — — — —
23 1984 2 4 6 33.3% 0 1 1 0.0% 0 5 5 0.0% 1 2 3 33.3% 1989 8 11 19 42.1% — — — — 3 4 7 42.9% 2 4 6 33.3%
24 1985 2 5 7 28.6% 0 1 1 0.0% 5 2 7 71.4% 3 3 6 50.0% 1990 0 3 3 0.0% — — — — 5 0 5 100.0% 1 1 2 50.0%
25 1986 8 7 15 53.3% 3 4 7 42.9% 4 4 8 50.0% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
26 1987 1 4 5 20.0% 0 2 2 0.0% 0 3 3 0.0% 0 3 3 0.0% — — — — — — — — — — — — — — — — —
27 1988 7 4 11 63.6% — — — — 1 2 3 33.3% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
28 1989 8 12 20 40.0% — — — — 5 3 8 62.5% 4 3 7 57.1% — — — — — — — — — — — — — — — — —
29 1990 8 8 16 50.0% — — — — 2 2 4 50.0% 2 4 6 33.3% — — — — — — — — — — — — — — — — —
30 1991 4 4 8 50.0% — — — — 2 3 5 40.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
31 1992 1 2 3 33.3% 0 1 1 0.0% — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — —
Career — 41 50 91 45.1% 3 9 12 25.0% 19 24 43 44.2% 14 21 35 40.0% — 21 26 47 44.7% 0 1 1 0.0% 12 8 20 60.0% 3 5 8 37.5%

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 Glenn Layendecker Pieter Aldrich
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
20 — — — — — — — — — — — — — — — — 1986 1513 110.1 — — — — — — — 50.0% +0.17 1–1 — — +0.09
21 — — — — — — — — — — — — — — — — 1987 1536 112.9 — — — — — — — 50.0% -1.00 — — — -0.32
22 — — — — — — — — — — — — — — — — 1988 1662 129.6 — — — — +17 — -56 51.3% -0.08 5–6 (45%) 7–7 (50%) 99.5 +0.62
23 1984 1468 117.4 — — — — +88 — +2 25.0% -1.53 1–2 (33%) 2–4 (33%) 98.3 -0.05 1989 1620 119.5 — — — — +5 — -29 43.3% -0.48 7–7 (50%) 4–4 (50%) 97.9 +0.20
24 1985 1526 116.1 — — — — +13 — +50 50.0% -0.13 3–5 (38%) 7–7 (50%) 99.6 +2.41 1990 1664 118.5 — — — — -66 — +47 52.2% +0.04 2–0 2–1 (67%) — +0.37
25 1986 1664 134.7 — — — — -1 -153 -70 45.3% -0.41 10–3 (77%) 6–6 (50%) 110.8 +0.17 — — — — — — — — — — — — — — — —
26 1987 1517 108.0 — — — — +52 — +20 20.6% -1.68 1–3 (25%) 1–2 (33%) 95.9 -0.27 — — — — — — — — — — — — — — — —
27 1988 1610 128.7 — — — — +51 — -89 52.3% +0.14 3–3 (50%) 7–3 (70%) 105.4 +0.57 — — — — — — — — — — — — — — — —
28 1989 1651 126.2 — — — — -12 — -31 49.5% -0.04 7–8 (47%) 8–10 (44%) 97.9 +0.49 — — — — — — — — — — — — — — — —
29 1990 1630 128.5 — — — — -1 — -3 49.3% -0.22 2–5 (29%) 7–4 (64%) 100.1 -0.62 — — — — — — — — — — — — — — — —
30 1991 1611 117.0 -0.90 -2.45 0.858 47.3% +27 — -6 42.2% -0.58 5–3 (63%) 4–3 (57%) 101.9 +0.59 — — — — — — — — — — — — — — — —
31 1992 1598 117.5 +1.00 -1.30 0.906 48.7% +32 — — 28.6% -1.00 1–0 0–1 — -0.21 — — — — — — — — — — — — — — — —
Career — 1733 131.2 -0.30 -2.09 0.873 47.7% +17 -153 -16 43.8% -0.44 33–32 (51%) 42–40 (51%) 105.2 +1.70 — 1676 127.4 — — — — +3 — -21 47.8% -0.25 15–14 (52%) 13–12 (52%) 101.1 +1.26

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.