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

Jeff Borowiak vs Dennis Ralston H2H: 2-0

Jeff Borowiak holds a 2–0 lead over Dennis Ralston in their ATP head-to-head. Across 2 main-draw meetings, Jeff Borowiak leads 1–0 on carpet and 1–0 on hard courts. Most recently, Jeff Borowiak won the 1975 San Francisco round of 32 6-4 7-5.

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Jeff Borowiak
USA Age 76 Right-Handed 193 cm / 6'4"
H2H
2 – 0
2 main draw meetings
Dennis Ralston
USA Right-Handed 188 cm / 6'2"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jeff Borowiak 6-4 7-5 Dennis Ralston Match data Sep 29, 1975* R32 San Francisco ATP 250 Carpet
Jeff Borowiak #45 6-3 6-2 Dennis Ralston #163 Match data Sep 20, 1974* R32 Los Angeles 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
Jeff Borowiak #920 #20 0 1,958 290 304 48.8% 0 0 0 0 5 5
Dennis Ralston #287 #115 0 1,958 156 135 53.6% 0 0 0 0 4 4

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 Jeff Borowiak Dennis Ralston
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
18 1968 6–10 37.5% — 1,470 0 0 — — — — — — —
19 1969 3–2 60.0% — 1,511 0 0 — — — — — — —
20 1970 6–7 46.2% — 1,564 0 0 — — — — — — —
21 1971 26–20 56.5% — 1,759 0 0 — — — — — — —
22 1972 20–28 41.7% — 1,825 0 0 — — — — — — —
23 1973 21–33 38.9% #82 1,732 0 0 — — — — — — —
24 1974 34–26 56.7% #40 1,858 0 2 — — — — — — —
25 1975 31–26 54.4% #48 1,807 0 2 1968 48–25 65.8% — 1,694 0 3
26 1976 18–23 43.9% #60 1,724 0 2 1969 28–24 53.8% — 1,787 0 3
27 1977 47–24 66.2% #25 1,825 0 5 1970 41–28 59.4% — 1,897 0 4
28 1978 16–25 39.0% #98 1,671 0 5 1971 27–21 56.2% — 1,870 0 4
29 1979 5–13 27.8% #125 1,617 0 5 1972 2–8 20.0% — 1,773 0 4
30 1980 5–5 50.0% #189 1,670 0 5 1973 1–6 14.3% #219 1,693 0 4
31 1981 18–19 48.6% #52 1,763 0 5 1974 3–5 37.5% #147 1,700 0 4
32 1982 21–20 51.2% #94 1,742 0 5 1975 1–4 20.0% #187 1,651 0 4
33 1983 13–19 40.6% #98 1,652 0 5 1976 1–9 10.0% #248 1,578 0 4
34 1984 0–4 0.0% #520 1,599 0 5 1977 1–2 33.3% #253 1,593 0 4
35 — — — — — — — 1978 0–1 0.0% #287 1,586 0 4
37 — — — — — — — 1980 3–2 60.0% — 1,626 0 4

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 Jeff Borowiak Dennis Ralston
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 %
18 1968 4 2 6 66.7% 1 2 3 33.3% 1 5 6 16.7% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
19 1969 3 1 4 75.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
20 1970 1 1 2 50.0% 2 3 5 40.0% 3 2 5 60.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
21 1971 11 10 21 52.4% 6 5 11 54.5% 4 3 7 57.1% 5 2 7 71.4% — — — — — — — — — — — — — — — — —
22 1972 9 9 18 50.0% 1 5 6 16.7% 0 1 1 0.0% 10 13 23 43.5% — — — — — — — — — — — — — — — — —
23 1973 8 8 16 50.0% 9 12 21 42.9% 1 3 4 25.0% 3 10 13 23.1% — — — — — — — — — — — — — — — — —
24 1974 9 9 18 50.0% 13 11 24 54.2% 2 3 5 40.0% 10 3 13 76.9% — — — — — — — — — — — — — — — — —
25 1975 11 9 20 55.0% 8 10 18 44.4% 3 2 5 60.0% 9 5 14 64.3% 1968 4 2 6 66.7% 5 3 8 62.5% 10 5 15 66.7% 29 15 44 65.9%
26 1976 3 3 6 50.0% 12 10 22 54.5% 0 2 2 0.0% 3 8 11 27.3% 1969 4 3 7 57.1% 4 6 10 40.0% 14 5 19 73.7% 6 10 16 37.5%
27 1977 7 8 15 46.7% 19 5 24 79.2% 0 2 2 0.0% 21 9 30 70.0% 1970 16 14 30 53.3% — — — — 14 7 21 66.7% 11 7 18 61.1%
28 1978 1 5 6 16.7% 13 9 22 59.1% 0 3 3 0.0% 2 8 10 20.0% 1971 5 4 9 55.6% 10 6 16 62.5% 6 5 11 54.5% 6 6 12 50.0%
29 1979 0 3 3 0.0% 2 5 7 28.6% 1 1 2 50.0% 2 4 6 33.3% 1972 0 6 6 0.0% — — — — — — — — 2 2 4 50.0%
30 1980 3 3 6 50.0% — — — — — — — — 2 2 4 50.0% 1973 1 4 5 20.0% — — — — — — — — 0 2 2 0.0%
31 1981 11 9 20 55.0% 2 3 5 40.0% 3 2 5 60.0% 2 5 7 28.6% 1974 3 3 6 50.0% — — — — 0 1 1 0.0% 0 1 1 0.0%
32 1982 4 7 11 36.4% 4 3 7 57.1% 10 6 16 62.5% 3 4 7 42.9% 1975 0 1 1 0.0% 0 2 2 0.0% — — — — 1 1 2 50.0%
33 1983 1 6 7 14.3% 7 5 12 58.3% 2 4 6 33.3% 3 4 7 42.9% 1976 1 4 5 20.0% — — — — — — — — 0 5 5 0.0%
34 1984 0 1 1 0.0% 0 2 2 0.0% 0 1 1 0.0% — — — — 1977 0 1 1 0.0% — — — — 1 1 2 50.0% — — — —
35 — — — — — — — — — — — — — — — — — 1978 — — — — — — — — — — — — 0 1 1 0.0%
37 — — — — — — — — — — — — — — — — — 1980 0 1 1 0.0% — — — — 3 1 4 75.0% — — — —
Career — 86 94 180 47.8% 99 91 190 52.1% 30 40 70 42.9% 75 79 154 48.7% — 34 43 77 44.2% 19 17 36 52.8% 48 25 73 65.8% 55 50 105 52.4%

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 Jeff Borowiak Dennis Ralston
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
18 1968 1471 97.5 — — — — +106 +20 -42 37.8% -0.84 0–2 — — +0.39 — — — — — — — — — — — — — — — —
19 1969 1512 107.1 — — — — +167 — — 50.0% +0.43 3–1 (75%) — — +0.31 — — — — — — — — — — — — — — — —
20 1970 1565 109.0 — — — — +89 -54 -66 46.7% -0.47 1–0 0–2 — -0.25 — — — — — — — — — — — — — — — —
21 1971 1759 131.8 — — — — +6 -154 -148 53.0% +0.15 10–5 (67%) 9–6 (60%) — -1.12 — — — — — — — — — — — — — — — —
22 1972 1826 149.5 — — — — +40 -240 — 43.2% -0.46 10–10 (50%) 9–10 (47%) — -7.30 — — — — — — — — — — — — — — — —
23 1973 1733 135.6 — — — — +29 -103 -173 43.0% -0.37 9–15 (38%) 7–10 (41%) — -4.54 — — — — — — — — — — — — — — — —
24 1974 1859 146.3 — — — — +25 -114 -273 56.0% +0.23 8–10 (44%) 12–6 (67%) — -4.92 — — — — — — — — — — — — — — — —
25 1975 1808 148.3 — — — — +64 -110 -178 53.6% +0.42 11–12 (48%) 5–9 (36%) — -5.88 1968 1694 112.7 — — — — +4 -104 +39 64.2% +1.56 11–5 (69%) — — +3.26
26 1976 1725 143.4 — — — — +66 -6 — 47.9% -0.08 9–9 (50%) 6–8 (43%) — -2.54 1969 1788 133.1 — — — — -116 -165 +110 56.8% +0.27 7–12 (37%) 1–2 (33%) — -0.96
27 1977 1825 151.8 — — — — -12 +75 — 61.0% +0.81 14–7 (67%) 9–9 (50%) — +0.48 1970 1898 144.3 — — — — -6 — +36 57.5% +0.56 13–8 (62%) 8–5 (62%) — -2.41
28 1978 1672 145.7 — — — — -11 +208 -147 43.0% -0.37 3–6 (33%) 4–4 (50%) — -3.12 1971 1870 145.6 — — — — +26 -115 -40 55.9% +0.35 10–9 (53%) 10–7 (59%) — -4.83
29 1979 1618 131.4 — — — — -19 +166 — 38.3% -0.58 2–5 (29%) 3–6 (33%) — -1.00 1972 1773 103.2 — — — — -28 — — 31.6% -1.47 1–2 (33%) 1–0 — +0.82
30 1980 1671 131.2 — — — — -19 — — 59.1% +0.91 1–3 (25%) 1–1 — -0.33 1973 1693 110.4 — — — — -41 — — 20.0% -1.40 0–1 1–2 (33%) — -0.63
31 1981 1764 143.3 — — — — -10 -18 -91 48.9% -0.23 4–5 (44%) 10–10 (50%) — -1.40 1974 1701 123.5 — — — — -32 — — 38.9% -1.11 — 2–0 — -1.16
32 1982 1742 140.8 — — — — -6 -6 -10 53.5% +0.11 4–8 (33%) 9–8 (53%) — -2.10 1975 1651 108.9 — — — — -3 — — 30.8% -1.46 1–1 3–1 (75%) — -0.29
33 1983 1652 129.5 — — — — -39 +97 +56 43.8% -0.57 5–5 (50%) 9–4 (69%) — -1.80 1976 1579 103.5 — — — — -38 — — 19.0% -2.62 1–2 (33%) 3–2 (60%) — -0.04
34 1984 1599 108.8 — — — — — — — 20.0% -1.60 0–2 0–1 — -0.33 1977 1593 106.1 — — — — — — — 45.5% -0.54 0–1 0–1 — -0.26
35 — — — — — — — — — — — — — — — — 1978 1586 102.9 — — — — — — — 0.0% -3.50 — — — -0.08
37 — — — — — — — — — — — — — — — — 1980 1626 122.5 — — — — — — +215 60.0% +0.40 — — — +0.01
Career — 1959 147.5 — — — — +19 -10 -85 49.6% -0.02 94–105 (47%) 93–94 (50%) 100.6 -6.02 — 1958 135.6 — — — — -19 -127 +55 54.5% +0.38 44–41 (52%) 29–20 (59%) 105.6 -2.33

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.