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

Jeff Borowiak vs Mike Cahill H2H: 1-0

Jeff Borowiak holds a 1–0 lead over Mike Cahill in their ATP head-to-head. Across 1 main-draw meeting, Jeff Borowiak leads 1–0 on carpet. Most recently, Jeff Borowiak won the 1979 Washington Indoor round of 16 6-4 7-6.

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

Jeff Borowiak
USA Age 76 Right-Handed 193 cm / 6'4"
H2H
1 – 0
1 main draw meetings
Mike Cahill
USA Age 74 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jeff Borowiak #93 6-4 7-6 Mike Cahill #58 Match data Mar 16, 1979* R16 Washington Indoor ATP 250 Carpet

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
Mike Cahill #448 #58 0 1,727 100 156 39.1% 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 Mike Cahill
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 1974 4–4 50.0% #138 1,539 0 0
23 1973 21–33 38.9% #82 1,732 0 0 1975 10–17 37.0% #79 1,585 0 0
24 1974 34–26 56.7% #40 1,858 0 2 1976 13–27 32.5% #136 1,587 0 0
25 1975 31–26 54.4% #48 1,807 0 2 1977 10–18 35.7% #94 1,574 0 0
26 1976 18–23 43.9% #60 1,724 0 2 1978 17–20 45.9% #69 1,692 0 0
27 1977 47–24 66.2% #25 1,825 0 5 1979 18–25 41.9% #113 1,678 0 0
28 1978 16–25 39.0% #98 1,671 0 5 1980 10–19 34.5% #189 1,601 0 0
29 1979 5–13 27.8% #125 1,617 0 5 1981 6–10 37.5% #100 1,629 0 0
30 1980 5–5 50.0% #189 1,670 0 5 1982 12–14 46.2% #98 1,644 0 0
31 1981 18–19 48.6% #52 1,763 0 5 1983 0–2 0.0% #108 1,621 0 0
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 Mike Cahill
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% 1974 — — — — 3 3 6 50.0% — — — — 1 1 2 50.0%
23 1973 8 8 16 50.0% 9 12 21 42.9% 1 3 4 25.0% 3 10 13 23.1% 1975 3 4 7 42.9% 6 9 15 40.0% — — — — 1 4 5 20.0%
24 1974 9 9 18 50.0% 13 11 24 54.2% 2 3 5 40.0% 10 3 13 76.9% 1976 1 4 5 20.0% 9 15 24 37.5% 0 2 2 0.0% 3 6 9 33.3%
25 1975 11 9 20 55.0% 8 10 18 44.4% 3 2 5 60.0% 9 5 14 64.3% 1977 2 3 5 40.0% 5 9 14 35.7% 0 1 1 0.0% 3 5 8 37.5%
26 1976 3 3 6 50.0% 12 10 22 54.5% 0 2 2 0.0% 3 8 11 27.3% 1978 5 6 11 45.5% 6 5 11 54.5% — — — — 6 9 15 40.0%
27 1977 7 8 15 46.7% 19 5 24 79.2% 0 2 2 0.0% 21 9 30 70.0% 1979 9 9 18 50.0% 8 8 16 50.0% 0 3 3 0.0% 1 5 6 16.7%
28 1978 1 5 6 16.7% 13 9 22 59.1% 0 3 3 0.0% 2 8 10 20.0% 1980 4 4 8 50.0% 6 9 15 40.0% — — — — 0 6 6 0.0%
29 1979 0 3 3 0.0% 2 5 7 28.6% 1 1 2 50.0% 2 4 6 33.3% 1981 5 5 10 50.0% 0 2 2 0.0% — — — — 1 3 4 25.0%
30 1980 3 3 6 50.0% — — — — — — — — 2 2 4 50.0% 1982 4 5 9 44.4% 6 4 10 60.0% — — — — 2 5 7 28.6%
31 1981 11 9 20 55.0% 2 3 5 40.0% 3 2 5 60.0% 2 5 7 28.6% 1983 — — — — 0 2 2 0.0% — — — — — — — —
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% — 33 40 73 45.2% 49 66 115 42.6% 0 6 6 0.0% 18 44 62 29.0%

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 Mike Cahill
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 1974 1540 112.1 — — — — — +29 — 50.0% -0.44 1–1 3–0 (100%) — +0.47
23 1973 1733 135.6 — — — — +29 -103 -173 43.0% -0.37 9–15 (38%) 7–10 (41%) — -4.54 1975 1586 128.8 — — — — 0 -9 — 42.9% -0.51 2–9 (18%) 3–2 (60%) — +0.58
24 1974 1859 146.3 — — — — +25 -114 -273 56.0% +0.23 8–10 (44%) 12–6 (67%) — -4.92 1976 1587 130.4 — — — — -15 -18 — 36.8% -0.84 4–7 (36%) 5–3 (63%) — -1.12
25 1975 1808 148.3 — — — — +64 -110 -178 53.6% +0.42 11–12 (48%) 5–9 (36%) — -5.88 1977 1574 122.9 — — — — +16 -15 — 40.3% -0.63 4–7 (36%) 6–4 (60%) — +1.24
26 1976 1725 143.4 — — — — +66 -6 — 47.9% -0.08 9–9 (50%) 6–8 (43%) — -2.54 1978 1692 139.6 — — — — -36 -53 — 45.8% +0.05 5–4 (56%) 2–8 (20%) — +0.86
27 1977 1825 151.8 — — — — -12 +75 — 61.0% +0.81 14–7 (67%) 9–9 (50%) — +0.48 1979 1679 129.0 — — — — -28 +8 -236 42.7% -0.57 7–6 (54%) 5–6 (45%) — +0.42
28 1978 1672 145.7 — — — — -11 +208 -147 43.0% -0.37 3–6 (33%) 4–4 (50%) — -3.12 1980 1602 134.8 — — — — +14 +31 — 35.5% -0.68 1–4 (20%) 2–7 (22%) — -0.50
29 1979 1618 131.4 — — — — -19 +166 — 38.3% -0.58 2–5 (29%) 3–6 (33%) — -1.00 1981 1630 125.6 — — — — +36 — — 44.7% -0.55 1–2 (33%) 4–2 (67%) — +0.59
30 1980 1671 131.2 — — — — -19 — — 59.1% +0.91 1–3 (25%) 1–1 — -0.33 1982 1644 127.1 — — — — -2 +3 — 46.6% -0.35 4–5 (44%) 5–2 (71%) — +1.34
31 1981 1764 143.3 — — — — -10 -18 -91 48.9% -0.23 4–5 (44%) 10–10 (50%) — -1.40 1983 1621 97.8 — — — — — — — 0.0% -2.75 — — — -0.27
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 — 1728 136.1 — — — — -7 -5 -236 41.6% -0.53 29–45 (39%) 35–34 (51%) 100.1 +1.42

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.