H2H data updated: 2026-09-04 00:00 UTC

Byron Bertram vs Jean Baptiste Chanfreau H2H: 0-1

Jean Baptiste Chanfreau holds a 1–0 lead over Byron Bertram in their ATP head-to-head. Across 1 main-draw meeting, Jean Baptiste Chanfreau leads 1–0 on hard courts. Most recently, Jean Baptiste Chanfreau won the 1972 South African Open round of 64 2-6 6-3 6-4 7-6.

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Byron Bertram
RSA Age 73 Right-Handed
H2H
0 – 1
1 main draw meetings
Jean Baptiste Chanfreau
FRA Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jean Baptiste Chanfreau 2-6 6-3 6-4 7-6 Byron Bertram Match data Apr 10, 1972* R64 South African Open 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
Byron Bertram #150 #57 0 1,815 115 139 45.3% 0 0 0 0 0 0
Jean Baptiste Chanfreau #420 #80 0 1,677 61 128 32.3% 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 Byron Bertram Jean Baptiste Chanfreau
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1969 0–3 0.0% — 1,467 0 0 — — — — — — —
17 1970 11–11 50.0% — 1,540 0 0 — — — — — — —
18 1971 9–13 40.9% — 1,547 0 0 — — — — — — —
19 1972 2–2 50.0% — 1,536 0 0 — — — — — — —
20 1973 11–10 52.4% #152 1,617 0 0 — — — — — — —
21 1974 15–13 53.6% #156 1,655 0 0 1968 3–6 33.3% — 1,460 0 0
22 1975 5–8 38.5% #120 1,652 0 0 1969 4–17 19.0% — 1,380 0 0
23 1976 23–24 48.9% #57 1,737 0 0 1970 5–14 26.3% — 1,461 0 0
24 1977 21–27 43.8% #87 1,744 0 0 1971 15–18 45.5% — 1,557 0 0
25 1978 10–11 47.6% #92 1,668 0 0 1972 6–17 26.1% — 1,465 0 0
26 1979 1–2 33.3% #219 1,649 0 0 1973 20–29 40.8% #84 1,654 0 0
27 1980 7–15 31.8% #150 1,570 0 0 1974 4–16 20.0% #138 1,569 0 0
28 — — — — — — — 1975 1–6 14.3% #212 1,510 0 0
31 — — — — — — — 1978 2–3 40.0% #418 1,533 0 0
32 — — — — — — — 1979 1–2 33.3% #420 1,523 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 Byron Bertram Jean Baptiste Chanfreau
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 1970 1 3 4 25.0% 2 3 5 40.0% 8 5 13 61.5% — — — — — — — — — — — — — — — — — — — — —
18 1971 4 5 9 44.4% 0 2 2 0.0% 5 4 9 55.6% 0 2 2 0.0% — — — — — — — — — — — — — — — — —
19 1972 1 1 2 50.0% — — — — 1 1 2 50.0% — — — — — — — — — — — — — — — — — — — — —
20 1973 3 3 6 50.0% 1 3 4 25.0% 6 3 9 66.7% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
21 1974 3 1 4 75.0% 1 4 5 20.0% 1 1 2 50.0% 10 7 17 58.8% 1968 — — — — 2 5 7 28.6% 1 1 2 50.0% — — — —
22 1975 1 3 4 25.0% 3 3 6 50.0% 1 1 2 50.0% 0 1 1 0.0% 1969 0 1 1 0.0% 1 7 8 12.5% 3 8 11 27.3% 0 1 1 0.0%
23 1976 7 4 11 63.6% 13 15 28 46.4% 0 1 1 0.0% 3 4 7 42.9% 1970 1 2 3 33.3% 2 7 9 22.2% 1 4 5 20.0% 1 1 2 50.0%
24 1977 7 10 17 41.2% 4 7 11 36.4% 6 3 9 66.7% 4 7 11 36.4% 1971 5 5 10 50.0% 3 7 10 30.0% 7 6 13 53.8% — — — —
25 1978 0 3 3 0.0% 0 1 1 0.0% 0 1 1 0.0% 10 6 16 62.5% 1972 2 3 5 40.0% 2 9 11 18.2% 1 4 5 20.0% 1 1 2 50.0%
26 1979 0 1 1 0.0% — — — — — — — — 1 1 2 50.0% 1973 4 6 10 40.0% 6 10 16 37.5% 6 3 9 66.7% 4 10 14 28.6%
27 1980 4 6 10 40.0% 0 3 3 0.0% 1 4 5 20.0% 2 2 4 50.0% 1974 0 4 4 0.0% 1 3 4 25.0% 2 3 5 40.0% 1 6 7 14.3%
28 — — — — — — — — — — — — — — — — — 1975 — — — — 1 6 7 14.3% — — — — — — — —
31 — — — — — — — — — — — — — — — — — 1978 — — — — 1 1 2 50.0% — — — — 1 2 3 33.3%
32 — — — — — — — — — — — — — — — — — 1979 1 2 3 33.3% — — — — — — — — — — — —
Career — 31 43 74 41.9% 24 41 65 36.9% 29 24 53 54.7% 31 31 62 50.0% — 13 23 36 36.1% 19 55 74 25.7% 21 29 50 42.0% 8 21 29 27.6%

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 Byron Bertram Jean Baptiste Chanfreau
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 1970 1541 119.6 — — — — -55 -40 +104 49.1% -0.21 0–1 — — +0.86 — — — — — — — — — — — — — — — —
18 1971 1547 108.9 — — — — -39 — +97 47.5% -0.13 2–7 (22%) 3–2 (60%) — +2.12 — — — — — — — — — — — — — — — —
19 1972 1536 105.5 — — — — — — — 54.5% +1.27 — 0–1 — +0.31 — — — — — — — — — — — — — — — —
20 1973 1618 113.6 — — — — +1 -147 +39 49.0% -0.12 5–3 (63%) 2–2 (50%) — +1.62 — — — — — — — — — — — — — — — —
21 1974 1655 122.3 — — — — +78 -202 — 53.2% +0.08 5–3 (63%) 5–2 (71%) — +2.72 1968 1461 96.0 — — — — — -19 — 23.8% -1.76 2–1 (67%) — — +0.04
22 1975 1653 123.3 — — — — +13 -136 — 44.1% -0.26 2–3 (40%) 3–2 (60%) — -0.16 1969 1380 97.4 — — — — — -3 +66 24.5% -1.68 1–3 (25%) 1–0 — +0.29
23 1976 1737 135.3 — — — — +19 -143 — 48.7% -0.04 10–8 (56%) 5–6 (45%) — -0.81 1970 1462 121.0 — — — — +124 -60 -15 26.9% -1.56 3–1 (75%) 2–3 (40%) — -1.06
24 1977 1745 136.0 — — — — -14 -174 +50 43.4% -0.53 11–5 (69%) 4–7 (36%) — -2.84 1971 1558 113.9 — — — — +33 -115 +7 44.6% -0.42 5–6 (45%) 5–7 (42%) — +2.80
25 1978 1668 116.8 — — — — +30 — — 45.7% -0.35 2–1 (67%) 3–1 (75%) — +3.30 1972 1466 100.7 — — — — +111 -77 +36 29.3% -1.22 2–6 (25%) 4–7 (36%) — +1.13
26 1979 1650 106.6 — — — — +23 — — 28.6% -0.86 1–0 0–1 — +0.39 1973 1655 135.3 — — — — +21 -194 -82 42.9% -0.71 8–11 (42%) 4–6 (40%) — -2.60
27 1980 1570 124.2 — — — — +66 -71 +169 38.9% -0.57 2–5 (29%) 5–6 (45%) — -0.40 1974 1570 119.2 — — — — -24 -100 +33 24.0% -1.90 2–2 (50%) 1–1 — -0.94
28 — — — — — — — — — — — — — — — — 1975 1510 97.2 — — — — — -78 — 14.3% -2.43 — — — +0.60
31 — — — — — — — — — — — — — — — — 1978 1533 111.0 — — — — +24 — — 38.5% -1.08 2–1 (67%) 1–3 (25%) — +0.07
32 — — — — — — — — — — — — — — — — 1979 1524 96.5 — — — — +11 — — 28.6% -1.86 1–0 — — +0.43
Career — 1816 130.3 — — — — +20 -141 +86 46.2% -0.25 40–36 (53%) 30–30 (50%) 106.0 +2.79 — 1677 118.7 — — — — +33 -94 +7 33.8% -1.16 26–31 (46%) 18–27 (40%) 103.4 +0.40

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.