H2H data updated: 2026-09-06 00:00 UTC

Byron Bertram vs Jairo Velasco H2H: 0-1

Jairo Velasco holds a 1–0 lead over Byron Bertram in their ATP head-to-head. Across 1 main-draw meeting, Jairo Velasco leads 1–0 on clay. Most recently, Jairo Velasco won the 1976 Bournemouth round of 64 2-6 6-1 8-6.

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

Byron Bertram
RSA Age 73 Right-Handed
H2H
0 – 1
1 main-draw meetings
Jairo Velasco
ESP

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jairo Velasco 2-6 6-1 8-6 Byron Bertram Match data May 12, 1976* 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
Byron Bertram #150 #57 0 1,815 115 139 45.3% 0 0 0 0 0 0
Jairo Velasco — — — 1,701 — — — 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.

Byron Bertram Jairo Velasco
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
1969 0–3 0.0% — 1,467 0 0 — — — — — — —
1970 11–11 50.0% — 1,540 0 0 — — — — — — —
1971 9–13 40.9% — 1,547 0 0 — — — — — — —
1972 2–2 50.0% — 1,536 0 0 — — — — — — —
1973 11–10 52.4% #152 1,617 0 0 — — — — — — —
1974 15–13 53.6% #156 1,655 0 0 — — — — — — —
1975 5–8 38.5% #120 1,652 0 0 — — — — — — —
1976 23–24 48.9% #57 1,737 0 0 — — — — — — —
1977 21–27 43.8% #87 1,744 0 0 — — — — — — —
1978 10–11 47.6% #92 1,668 0 0 — — — — — — —
1979 1–2 33.3% #219 1,649 0 0 — — — — — — —
1980 7–15 31.8% #150 1,570 0 0 — — — — — — —

Surface Results by Career Season

Rows are aligned in career order because complete birth data is unavailable. 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.

Byron Bertram Jairo Velasco
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 %
1969 0 3 3 0.0% — — — — — — — — — — — — 1968 — — — — 1 3 4 25.0% — — — — — — — —
1970 1 3 4 25.0% 2 3 5 40.0% 8 5 13 61.5% — — — — 1969 0 2 2 0.0% 1 5 6 16.7% — — — — — — — —
1971 4 5 9 44.4% 0 2 2 0.0% 5 4 9 55.6% 0 2 2 0.0% 1970 0 1 1 0.0% 3 2 5 60.0% — — — — — — — —
1972 1 1 2 50.0% — — — — 1 1 2 50.0% — — — — 1971 — — — — 1 2 3 33.3% — — — — — — — —
1973 3 3 6 50.0% 1 3 4 25.0% 6 3 9 66.7% 1 1 2 50.0% 1972 0 1 1 0.0% 5 4 9 55.6% 0 2 2 0.0% — — — —
1974 3 1 4 75.0% 1 4 5 20.0% 1 1 2 50.0% 10 7 17 58.8% 1973 — — — — 1 2 3 33.3% — — — — — — — —
1975 1 3 4 25.0% 3 3 6 50.0% 1 1 2 50.0% 0 1 1 0.0% 1974 0 3 3 0.0% 13 12 25 52.0% 0 1 1 0.0% 2 5 7 28.6%
1976 7 4 11 63.6% 13 15 28 46.4% 0 1 1 0.0% 3 4 7 42.9% 1975 — — — — 16 20 36 44.4% 0 1 1 0.0% 1 1 2 50.0%
1977 7 10 17 41.2% 4 7 11 36.4% 6 3 9 66.7% 4 7 11 36.4% 1976 1 2 3 33.3% 15 23 38 39.5% — — — — 0 1 1 0.0%
1978 0 3 3 0.0% 0 1 1 0.0% 0 1 1 0.0% 10 6 16 62.5% 1977 — — — — 3 12 15 20.0% — — — — — — — —
1979 0 1 1 0.0% — — — — — — — — 1 1 2 50.0% 1978 — — — — 5 5 10 50.0% — — — — — — — —
1980 4 6 10 40.0% 0 3 3 0.0% 1 4 5 20.0% 2 2 4 50.0% 1979 — — — — 9 9 18 50.0% — — — — — — — —
— — — — — — — — — — — — — — — — — 1980 — — — — 10 12 22 45.5% — — — — — — — —
— — — — — — — — — — — — — — — — — 1981 0 1 1 0.0% 1 3 4 25.0% — — — — — — — —
— — — — — — — — — — — — — — — — — 1982 — — — — 4 4 8 50.0% — — — — 0 1 1 0.0%
— — — — — — — — — — — — — — — — — 1983 0 1 1 0.0% 11 15 26 42.3% — — — — 0 1 1 0.0%
Career 31 43 74 41.9% 24 41 65 36.9% 29 24 53 54.7% 31 31 62 50.0% Career 1 11 12 8.3% 99 133 232 42.7% 0 4 4 0.0% 3 9 12 25.0%

Advanced Statistics Comparison by Career Season

Rows are aligned in career order because complete birth data is unavailable. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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.

Byron Bertram Jairo Velasco
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
1969 1467 97.7 — — — — +26 — — 20.0% -2.20 — — — -0.10 1968 1487 97.7 — — — — — +9 — 37.5% -0.88 — — — +0.08
1970 1541 119.6 — — — — -55 -40 +104 49.1% -0.21 0–1 — — +0.86 1969 1434 101.0 — — — — — -2 — 22.7% -2.05 0–2 — — +0.20
1971 1547 108.9 — — — — -39 — +97 47.5% -0.13 2–7 (22%) 3–2 (60%) 96.3 +2.12 1970 1470 105.1 — — — — — +26 — 46.7% -0.27 — — — +0.67
1972 1536 105.5 — — — — — — — 54.5% +1.27 — 0–1 — +0.31 1971 1473 104.2 — — — — — +25 — 44.4% -0.78 — — — +0.23
1973 1618 113.6 — — — — +1 -147 +39 49.0% -0.12 5–3 (63%) 2–2 (50%) 102.7 +1.62 1972 1527 109.1 — — — — — +48 — 43.8% -0.78 2–3 (40%) 1–0 — -0.23
1974 1655 122.3 — — — — +78 -202 — 53.2% +0.08 5–3 (63%) 5–2 (71%) 106.5 +2.72 1973 1528 98.4 — — — — — +38 — 33.3% -1.50 — — — -0.14
1975 1653 123.3 — — — — +13 -136 — 44.1% -0.26 2–3 (40%) 3–2 (60%) 99.5 -0.16 1974 1586 130.6 — — — — -91 +40 — 45.6% -0.49 5–9 (36%) 5–4 (56%) 97.4 +0.69
1976 1737 135.3 — — — — +19 -143 — 48.7% -0.04 10–8 (56%) 5–6 (45%) 102.8 -0.81 1975 1638 124.0 — — — — — +29 — 42.1% -0.63 8–5 (62%) 3–4 (43%) 103.9 +1.65
1977 1745 136.0 — — — — -14 -174 +50 43.4% -0.53 11–5 (69%) 4–7 (36%) 107.4 -2.84 1976 1602 131.7 — — — — -127 +31 — 40.2% -0.57 4–9 (31%) 9–7 (56%) 99.1 +1.18
1978 1668 116.8 — — — — +30 — — 45.7% -0.35 2–1 (67%) 3–1 (75%) 102.2 +3.30 1977 1547 130.9 — — — — — +15 — 33.3% -1.00 1–6 (14%) 2–1 (67%) 97.0 -0.56
1979 1650 106.6 — — — — +23 — — 28.6% -0.86 1–0 0–1 — +0.39 1978 1606 128.1 — — — — — +22 — 44.0% -0.60 4–3 (57%) — — -0.33
1980 1570 124.2 — — — — +66 -71 +169 38.9% -0.57 2–5 (29%) 5–6 (45%) 96.6 -0.40 1979 1647 128.2 — — — — — +28 — 44.2% -0.54 5–1 (83%) 2–1 (67%) — +0.99
— — — — — — — — — — — — — — — — 1980 1641 126.1 — — — — — +17 — 43.6% -0.60 7–4 (64%) 1–2 (33%) 102.2 +0.07
— — — — — — — — — — — — — — — — 1981 1609 118.1 — — — — — +40 — 35.7% -1.07 1–3 (25%) 1–0 — -0.22
— — — — — — — — — — — — — — — — 1982 1621 121.6 — — — — — +59 — 41.7% -0.63 2–1 (67%) 2–1 (67%) 102.2 +0.28
— — — — — — — — — — — — — — — — 1983 1620 127.0 — — — — — +33 — 42.6% -0.43 2–5 (29%) 1–2 (33%) — -0.24
Career 1816 130.3 — — — — +20 -141 +86 46.2% -0.25 40–36 (53%) 30–30 (50%) 106.0 +2.79 Career 1701 132.7 — — — — -101 +29 — 41.4% -0.67 41–51 (45%) 27–22 (55%) 102.2 +1.68

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.