H2H data updated: 2026-09-01 00:00 UTC

Geoff Masters vs Byron Bertram H2H: 1-1

Geoff Masters and Byron Bertram are tied 1–1 in their ATP head-to-head. Across 2 main-draw meetings, Geoff Masters leads 1–0 on clay, while Byron Bertram leads 1–0 on grass. Most recently, Byron Bertram won the 1977 Queen's Club Championships round of 32 6-4 3-6 6-2.

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Geoff Masters
AUS Age 75 Right-Handed
H2H
1 – 1
2 main draw meetings
Byron Bertram
RSA Age 73 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Byron Bertram #67 6-4 3-6 6-2 Geoff Masters #56 Match data Jun 16, 1977* R32 Queen's Club Championships ATP 250 Grass
Geoff Masters 3-6 6-3 6-0 Byron Bertram Match data May 8, 1973* R64 Bournemouth 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
Geoff Masters #826 #42 0 1,889 237 253 48.4% 0 0 0 0 2 2
Byron Bertram #150 #57 0 1,815 115 139 45.3% 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 Geoff Masters Byron Bertram
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1969 0–3 0.0% — 1,467 0 0
17 1968 2–2 50.0% — 1,511 0 0 1970 11–11 50.0% — 1,540 0 0
18 1969 7–6 53.8% — 1,542 0 0 1971 9–13 40.9% — 1,547 0 0
19 1970 10–7 58.8% — 1,581 0 0 1972 2–2 50.0% — 1,536 0 0
20 1971 19–22 46.3% — 1,573 0 0 1973 11–10 52.4% #152 1,617 0 0
21 1972 18–18 50.0% — 1,670 0 0 1974 15–13 53.6% #156 1,655 0 0
22 1973 28–23 54.9% #52 1,756 0 0 1975 5–8 38.5% #120 1,652 0 0
23 1974 23–21 52.3% #53 1,766 0 1 1976 23–24 48.9% #57 1,737 0 0
24 1975 27–24 52.9% #44 1,812 0 1 1977 21–27 43.8% #87 1,744 0 0
25 1976 27–31 46.6% #53 1,780 0 2 1978 10–11 47.6% #92 1,668 0 0
26 1977 22–27 44.9% #83 1,662 0 2 1979 1–2 33.3% #219 1,649 0 0
27 1978 20–20 50.0% #59 1,701 0 2 1980 7–15 31.8% #150 1,570 0 0
28 1979 21–23 47.7% #62 1,728 0 2 — — — — — — —
29 1980 13–28 31.7% #166 1,517 0 2 — — — — — — —
30 1981 0–1 0.0% — 1,501 0 2 — — — — — — —

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 Geoff Masters Byron Bertram
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 — — — — — — — — — — — — — — — — — 1969 0 3 3 0.0% — — — — — — — — — — — —
17 1968 — — — — — — — — 2 2 4 50.0% — — — — 1970 1 3 4 25.0% 2 3 5 40.0% 8 5 13 61.5% — — — —
18 1969 — — — — 3 3 6 50.0% 4 3 7 57.1% — — — — 1971 4 5 9 44.4% 0 2 2 0.0% 5 4 9 55.6% 0 2 2 0.0%
19 1970 — — — — 4 3 7 57.1% 6 4 10 60.0% — — — — 1972 1 1 2 50.0% — — — — 1 1 2 50.0% — — — —
20 1971 3 9 12 25.0% 5 6 11 45.5% 11 7 18 61.1% — — — — 1973 3 3 6 50.0% 1 3 4 25.0% 6 3 9 66.7% 1 1 2 50.0%
21 1972 11 5 16 68.8% 5 5 10 50.0% 2 7 9 22.2% 0 1 1 0.0% 1974 3 1 4 75.0% 1 4 5 20.0% 1 1 2 50.0% 10 7 17 58.8%
22 1973 8 4 12 66.7% 15 13 28 53.6% 5 6 11 45.5% — — — — 1975 1 3 4 25.0% 3 3 6 50.0% 1 1 2 50.0% 0 1 1 0.0%
23 1974 2 8 10 20.0% 11 5 16 68.8% 9 4 13 69.2% 1 4 5 20.0% 1976 7 4 11 63.6% 13 15 28 46.4% 0 1 1 0.0% 3 4 7 42.9%
24 1975 9 9 18 50.0% 5 6 11 45.5% 6 3 9 66.7% 7 6 13 53.8% 1977 7 10 17 41.2% 4 7 11 36.4% 6 3 9 66.7% 4 7 11 36.4%
25 1976 11 6 17 64.7% 6 9 15 40.0% 3 5 8 37.5% 7 11 18 38.9% 1978 0 3 3 0.0% 0 1 1 0.0% 0 1 1 0.0% 10 6 16 62.5%
26 1977 15 11 26 57.7% 0 2 2 0.0% 5 9 14 35.7% 2 5 7 28.6% 1979 0 1 1 0.0% — — — — — — — — 1 1 2 50.0%
27 1978 7 5 12 58.3% 3 2 5 60.0% 4 4 8 50.0% 6 9 15 40.0% 1980 4 6 10 40.0% 0 3 3 0.0% 1 4 5 20.0% 2 2 4 50.0%
28 1979 2 4 6 33.3% 4 3 7 57.1% 9 6 15 60.0% 6 10 16 37.5% — — — — — — — — — — — — — — — — —
29 1980 2 6 8 25.0% 2 7 9 22.2% 1 6 7 14.3% 8 9 17 47.1% — — — — — — — — — — — — — — — — —
30 1981 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 70 67 137 51.1% 63 64 127 49.6% 67 67 134 50.0% 37 55 92 40.2% — 31 43 74 41.9% 24 41 65 36.9% 29 24 53 54.7% 31 31 62 50.0%

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 Geoff Masters Byron Bertram
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 — — — — — — — — — — — — — — — — 1969 1467 97.7 — — — — +26 — — 20.0% -2.20 — — — -0.10
17 1968 1511 104.2 — — — — — — +30 54.5% +0.45 — — — +0.07 1970 1541 119.6 — — — — -55 -40 +104 49.1% -0.21 0–1 — — +0.86
18 1969 1542 108.7 — — — — — +20 -1 53.1% +0.47 2–1 (67%) — — +1.09 1971 1547 108.9 — — — — -39 — +97 47.5% -0.13 2–7 (22%) 3–2 (60%) — +2.12
19 1970 1581 113.8 — — — — — +4 +1 48.9% +0.09 2–0 0–1 — +2.04 1972 1536 105.5 — — — — — — — 54.5% +1.27 — 0–1 — +0.31
20 1971 1573 113.6 — — — — -110 +36 +80 44.4% -0.32 9–3 (75%) 1–3 (25%) — +2.45 1973 1618 113.6 — — — — +1 -147 +39 49.0% -0.12 5–3 (63%) 2–2 (50%) — +1.62
21 1972 1670 122.7 — — — — -2 -18 -123 48.0% +0.02 6–6 (50%) 3–4 (43%) — +1.43 1974 1655 122.3 — — — — +78 -202 — 53.2% +0.08 5–3 (63%) 5–2 (71%) — +2.72
22 1973 1756 140.1 — — — — 0 -38 -146 52.2% +0.18 11–7 (61%) 8–9 (47%) — -1.32 1975 1653 123.3 — — — — +13 -136 — 44.1% -0.26 2–3 (40%) 3–2 (60%) — -0.16
23 1974 1766 141.0 — — — — -125 +49 -11 52.2% +0.31 8–7 (53%) 3–6 (33%) — -2.52 1976 1737 135.3 — — — — +19 -143 — 48.7% -0.04 10–8 (56%) 5–6 (45%) — -0.81
24 1975 1812 148.9 — — — — -23 -36 +8 53.0% +0.27 10–12 (45%) 6–8 (43%) — -3.09 1977 1745 136.0 — — — — -14 -174 +50 43.4% -0.53 11–5 (69%) 4–7 (36%) — -2.84
25 1976 1781 148.0 — — — — +86 -91 -12 48.5% +0.04 4–8 (33%) 9–4 (69%) — -2.30 1978 1668 116.8 — — — — +30 — — 45.7% -0.35 2–1 (67%) 3–1 (75%) — +3.30
26 1977 1662 120.4 — — — — +90 — -42 44.1% -0.40 8–10 (44%) 6–9 (40%) — +2.97 1979 1650 106.6 — — — — +23 — — 28.6% -0.86 1–0 0–1 — +0.39
27 1978 1701 140.0 — — — — +47 -24 -35 51.0% +0.09 5–8 (38%) 5–5 (50%) — +1.79 1980 1570 124.2 — — — — +66 -71 +169 38.9% -0.57 2–5 (29%) 5–6 (45%) — -0.40
28 1979 1729 143.8 — — — — -31 -3 -1 48.1% -0.11 8–8 (50%) 8–7 (53%) — -2.12 — — — — — — — — — — — — — — — —
29 1980 1518 124.9 — — — — +79 +146 +101 36.6% -0.87 4–8 (33%) 8–8 (50%) — -0.05 — — — — — — — — — — — — — — — —
30 1981 1501 94.8 — — — — — — — 0.0% -4.00 — — — +0.19 — — — — — — — — — — — — — — — —
Career — 1890 139.6 — — — — +20 -4 -11 48.2% -0.04 77–78 (50%) 57–64 (47%) 99.9 +0.13 — 1816 130.3 — — — — +20 -141 +86 46.2% -0.25 40–36 (53%) 30–30 (50%) 106.0 +2.79

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.