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

Jeff Borowiak vs Jim Delaney H2H: 1-0

Jeff Borowiak holds a 1–0 lead over Jim Delaney in their ATP head-to-head. Across 1 main-draw meeting, Jeff Borowiak leads 1–0 on hard courts. Most recently, Jeff Borowiak won the 1977 La Costa round of 64 7-5 6-4.

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Jeff Borowiak
USA Age 76 Right-Handed 193 cm / 6'4"
H2H
1 – 0
1 main draw meetings
Jim Delaney
USA Age 73 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jeff Borowiak #40 7-5 6-4 Jim Delaney #82 Match data Mar 23, 1977* R64 La Costa 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
Jim Delaney #262 #64 0 1,678 78 131 37.3% 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 Jeff Borowiak Jim Delaney
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 1972 1–5 16.7% — 1,453 0 0
20 1970 6–7 46.2% — 1,564 0 0 1973 4–5 44.4% #159 1,535 0 0
21 1971 26–20 56.5% — 1,759 0 0 1974 9–7 56.2% #109 1,589 0 0
22 1972 20–28 41.7% — 1,825 0 0 1975 10–14 41.7% #73 1,647 0 0
23 1973 21–33 38.9% #82 1,732 0 0 1976 20–29 40.8% #64 1,633 0 0
24 1974 34–26 56.7% #40 1,858 0 2 1977 16–27 37.2% #74 1,624 0 0
25 1975 31–26 54.4% #48 1,807 0 2 1978 0–2 0.0% #418 1,602 0 0
26 1976 18–23 43.9% #60 1,724 0 2 1979 2–9 18.2% #276 1,521 0 0
27 1977 47–24 66.2% #25 1,825 0 5 1980 2–5 28.6% #269 1,512 0 0
28 1978 16–25 39.0% #98 1,671 0 5 1981 11–21 34.4% — 1,514 0 0
29 1979 5–13 27.8% #125 1,617 0 5 1982 3–7 30.0% — 1,513 0 0
30 1980 5–5 50.0% #189 1,670 0 5 — — — — — — —
31 1981 18–19 48.6% #52 1,763 0 5 — — — — — — —
32 1982 21–20 51.2% #94 1,742 0 5 — — — — — — —
33 1983 13–19 40.6% #98 1,652 0 5 — — — — — — —
34 1984 0–4 0.0% #520 1,599 0 5 — — — — — — —

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 Jim Delaney
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% — — — — — — — — 1972 1 3 4 25.0% 0 1 1 0.0% 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% 1973 0 1 1 0.0% 3 3 6 50.0% 1 1 2 50.0% — — — —
21 1971 11 10 21 52.4% 6 5 11 54.5% 4 3 7 57.1% 5 2 7 71.4% 1974 1 1 2 50.0% 1 2 3 33.3% 3 2 5 60.0% 4 2 6 66.7%
22 1972 9 9 18 50.0% 1 5 6 16.7% 0 1 1 0.0% 10 13 23 43.5% 1975 3 5 8 37.5% 6 7 13 46.2% — — — — 1 2 3 33.3%
23 1973 8 8 16 50.0% 9 12 21 42.9% 1 3 4 25.0% 3 10 13 23.1% 1976 12 9 21 57.1% 4 12 16 25.0% 2 3 5 40.0% 2 5 7 28.6%
24 1974 9 9 18 50.0% 13 11 24 54.2% 2 3 5 40.0% 10 3 13 76.9% 1977 4 8 12 33.3% 2 8 10 20.0% 4 3 7 57.1% 6 8 14 42.9%
25 1975 11 9 20 55.0% 8 10 18 44.4% 3 2 5 60.0% 9 5 14 64.3% 1978 0 1 1 0.0% — — — — — — — — 0 1 1 0.0%
26 1976 3 3 6 50.0% 12 10 22 54.5% 0 2 2 0.0% 3 8 11 27.3% 1979 0 3 3 0.0% 0 3 3 0.0% 1 2 3 33.3% 1 1 2 50.0%
27 1977 7 8 15 46.7% 19 5 24 79.2% 0 2 2 0.0% 21 9 30 70.0% 1980 — — — — 0 2 2 0.0% 1 1 2 50.0% 1 2 3 33.3%
28 1978 1 5 6 16.7% 13 9 22 59.1% 0 3 3 0.0% 2 8 10 20.0% 1981 2 7 9 22.2% 4 5 9 44.4% 4 5 9 44.4% 1 4 5 20.0%
29 1979 0 3 3 0.0% 2 5 7 28.6% 1 1 2 50.0% 2 4 6 33.3% 1982 0 1 1 0.0% 3 4 7 42.9% 0 2 2 0.0% — — — —
30 1980 3 3 6 50.0% — — — — — — — — 2 2 4 50.0% — — — — — — — — — — — — — — — — —
31 1981 11 9 20 55.0% 2 3 5 40.0% 3 2 5 60.0% 2 5 7 28.6% — — — — — — — — — — — — — — — — —
32 1982 4 7 11 36.4% 4 3 7 57.1% 10 6 16 62.5% 3 4 7 42.9% — — — — — — — — — — — — — — — — —
33 1983 1 6 7 14.3% 7 5 12 58.3% 2 4 6 33.3% 3 4 7 42.9% — — — — — — — — — — — — — — — — —
34 1984 0 1 1 0.0% 0 2 2 0.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
Career — 86 94 180 47.8% 99 91 190 52.1% 30 40 70 42.9% 75 79 154 48.7% — 23 39 62 37.1% 23 47 70 32.9% 16 20 36 44.4% 16 25 41 39.0%

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 Jeff Borowiak Jim Delaney
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 1972 1453 97.8 — — — — +87 — — 31.3% -1.13 0–2 3–1 (75%) — +0.33
20 1970 1565 109.0 — — — — +89 -54 -66 46.7% -0.47 1–0 0–2 — -0.25 1973 1535 115.9 — — — — — +29 — 43.5% -0.04 1–1 1–3 (25%) — -0.95
21 1971 1759 131.8 — — — — +6 -154 -148 53.0% +0.15 10–5 (67%) 9–6 (60%) — -1.12 1974 1590 115.9 — — — — +3 -44 -43 51.2% +0.15 4–3 (57%) 4–3 (57%) — +1.56
22 1972 1826 149.5 — — — — +40 -240 — 43.2% -0.46 10–10 (50%) 9–10 (47%) — -7.30 1975 1648 130.0 — — — — -58 -15 — 40.7% -0.72 4–4 (50%) 5–2 (71%) — -1.20
23 1973 1733 135.6 — — — — +29 -103 -173 43.0% -0.37 9–15 (38%) 7–10 (41%) — -4.54 1976 1633 124.0 — — — — +10 -63 -67 40.3% -0.51 9–7 (56%) 5–11 (31%) — +2.59
24 1974 1859 146.3 — — — — +25 -114 -273 56.0% +0.23 8–10 (44%) 12–6 (67%) — -4.92 1977 1625 131.3 — — — — +11 -87 -49 41.1% -0.61 9–11 (45%) 3–5 (38%) — -0.92
25 1975 1808 148.3 — — — — +64 -110 -178 53.6% +0.42 11–12 (48%) 5–9 (36%) — -5.88 1978 1602 98.4 — — — — — — — 0.0% -4.50 — — — -0.03
26 1976 1725 143.4 — — — — +66 -6 — 47.9% -0.08 9–9 (50%) 6–8 (43%) — -2.54 1979 1521 100.2 — — — — +41 -40 +50 25.9% -1.41 1–3 (25%) 0–2 — +0.72
27 1977 1825 151.8 — — — — -12 +75 — 61.0% +0.81 14–7 (67%) 9–9 (50%) — +0.48 1980 1513 116.6 — — — — +44 — — 35.3% -0.65 1–2 (33%) 3–4 (43%) — +0.36
28 1978 1672 145.7 — — — — -11 +208 -147 43.0% -0.37 3–6 (33%) 4–4 (50%) — -3.12 1981 1514 115.6 — — — — -18 -33 +92 42.4% -0.82 3–10 (23%) 10–4 (71%) — +1.04
29 1979 1618 131.4 — — — — -19 +166 — 38.3% -0.58 2–5 (29%) 3–6 (33%) — -1.00 1982 1514 105.2 — — — — — -10 — 31.8% -1.50 1–1 2–2 (50%) — 0.00
30 1980 1671 131.2 — — — — -19 — — 59.1% +0.91 1–3 (25%) 1–1 — -0.33 — — — — — — — — — — — — — — — —
31 1981 1764 143.3 — — — — -10 -18 -91 48.9% -0.23 4–5 (44%) 10–10 (50%) — -1.40 — — — — — — — — — — — — — — — —
32 1982 1742 140.8 — — — — -6 -6 -10 53.5% +0.11 4–8 (33%) 9–8 (53%) — -2.10 — — — — — — — — — — — — — — — —
33 1983 1652 129.5 — — — — -39 +97 +56 43.8% -0.57 5–5 (50%) 9–4 (69%) — -1.80 — — — — — — — — — — — — — — — —
34 1984 1599 108.8 — — — — — — — 20.0% -1.60 0–2 0–1 — -0.33 — — — — — — — — — — — — — — — —
Career — 1959 147.5 — — — — +19 -10 -85 49.6% -0.02 94–105 (47%) 93–94 (50%) 100.6 -6.02 — 1678 125.3 — — — — +4 -38 +3 40.0% -0.67 33–44 (43%) 36–37 (49%) 102.3 +1.67

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.