H2H data updated: 2026-09-02 00:00 UTC

Glenn Layendecker vs Roger Knapp H2H: 1-0

Glenn Layendecker holds a 1–0 lead over Roger Knapp in their ATP head-to-head. Across 1 main-draw meeting, Glenn Layendecker leads 1–0 on grass. Most recently, Glenn Layendecker won the 1985 Bristol semifinal 6-4 6-3.

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

Glenn Layendecker
USA Age 65 Left-Handed 185 cm / 6'1"
H2H
1 – 0
1 main draw meetings
Roger Knapp
USA Left-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Glenn Layendecker #198 6-4 6-3 Roger Knapp #232 Match data Jun 22, 1985* SF Bristol ATP 250 Grass

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
Roger Knapp #826 #146 0 1,561 4 6 40.0% 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 Glenn Layendecker Roger Knapp
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
23 1984 3–12 20.0% #174 1,468 0 0 — — — — — — —
24 1985 10–11 47.6% #118 1,526 0 0 1984 0–3 0.0% #229 1,469 0 0
25 1986 17–17 50.0% #73 1,663 0 0 1985 4–3 57.1% #173 1,522 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 Roger Knapp
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 %
23 1984 2 4 6 33.3% 0 1 1 0.0% 0 5 5 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
24 1985 2 5 7 28.6% 0 1 1 0.0% 5 2 7 71.4% 3 3 6 50.0% 1984 0 1 1 0.0% — — — — 0 1 1 0.0% 0 1 1 0.0%
25 1986 8 7 15 53.3% 3 4 7 42.9% 4 4 8 50.0% 2 2 4 50.0% 1985 0 1 1 0.0% — — — — 4 2 6 66.7% — — — —
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% — 0 2 2 0.0% — — — — 4 3 7 57.1% 0 1 1 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 Glenn Layendecker Roger Knapp
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
23 1984 1468 117.4 — — — — +88 — +2 25.0% -1.53 1–2 (33%) 2–4 (33%) — -0.05 — — — — — — — — — — — — — — — —
24 1985 1526 116.1 — — — — +13 — +50 50.0% -0.13 3–5 (38%) 7–7 (50%) — +2.41 1984 1469 96.6 — — — — — — — 0.0% -3.00 — — — +0.20
25 1986 1664 134.7 — — — — -1 -153 -70 45.3% -0.41 10–3 (77%) 6–6 (50%) — +0.17 1985 1523 109.7 — — — — — — +79 52.9% +0.35 2–1 (67%) 2–2 (50%) — +0.16
26 1987 1517 108.0 — — — — +52 — +20 20.6% -1.68 1–3 (25%) 1–2 (33%) — -0.27 — — — — — — — — — — — — — — — —
27 1988 1610 128.7 — — — — +51 — -89 52.3% +0.14 3–3 (50%) 7–3 (70%) — +0.57 — — — — — — — — — — — — — — — —
28 1989 1651 126.2 — — — — -12 — -31 49.5% -0.04 7–8 (47%) 8–10 (44%) — +0.49 — — — — — — — — — — — — — — — —
29 1990 1630 128.5 — — — — -1 — -3 49.3% -0.22 2–5 (29%) 7–4 (64%) — -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%) — +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 — 1561 104.1 — — — — — — +79 39.1% -0.52 2–1 (67%) 2–2 (50%) 102.4 +3.60

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.