H2H data updated: 2026-09-05 00:00 UTC

Jeff Borowiak vs Paul Kronk H2H: 2-0

Jeff Borowiak holds a 2–0 lead over Paul Kronk in their ATP head-to-head. Across 2 main-draw meetings, Jeff Borowiak leads 1–0 on carpet and 1–0 on grass. Most recently, Jeff Borowiak won the 1979 Wimbledon round of 128 6-2 6-2 6-4.

USA Age 76 Right-Handed 193 cm / 6'4"
H2H
2 0
2 main draw meetings
AUS Age 71 Right-Handed

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jeff Borowiak #93 6-2 6-2 6-4 Paul Kronk Match data Jun 27, 1979* R128 Wimbledon Grand Slam Grass
Jeff Borowiak 7-6 7-6 Paul Kronk Match data Apr 21, 1977* R32 Denver 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
Paul Kronk 1,685 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 Paul Kronk
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
26 1976 18–23 43.9% #60 1,724 0 2
27 1977 47–24 66.2% #25 1,825 0 5
28 1978 16–25 39.0% #98 1,671 0 5
29 1979 5–13 27.8% #125 1,617 0 5
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 Paul Kronk
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 %
15 1970 0 2 2 0.0%
16 1971 1 0 1 100.0%
17 1972 0 2 2 0.0%
18 1968 4 2 6 66.7% 1 2 3 33.3% 1 5 6 16.7% 0 1 1 0.0% 1973 4 5 9 44.4% 2 1 3 66.7% 0 3 3 0.0%
19 1969 3 1 4 75.0% 0 1 1 0.0% 1974 1 8 9 11.1% 6 8 14 42.9% 0 3 3 0.0% 1 6 7 14.3%
20 1970 1 1 2 50.0% 2 3 5 40.0% 3 2 5 60.0% 0 1 1 0.0% 1975 2 3 5 40.0% 10 15 25 40.0% 2 1 3 66.7% 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% 1976 5 4 9 55.6% 2 8 10 20.0% 2 4 6 33.3% 1 2 3 33.3%
22 1972 9 9 18 50.0% 1 5 6 16.7% 0 1 1 0.0% 10 13 23 43.5% 1977 1 4 5 20.0% 4 9 13 30.8% 3 3 6 50.0% 0 2 2 0.0%
23 1973 8 8 16 50.0% 9 12 21 42.9% 1 3 4 25.0% 3 10 13 23.1% 1978 1 3 4 25.0% 4 9 13 30.8% 5 2 7 71.4%
24 1974 9 9 18 50.0% 13 11 24 54.2% 2 3 5 40.0% 10 3 13 76.9% 1979 2 7 9 22.2% 3 6 9 33.3% 3 3 6 50.0% 1 3 4 25.0%
25 1975 11 9 20 55.0% 8 10 18 44.4% 3 2 5 60.0% 9 5 14 64.3% 1980 6 6 12 50.0% 3 4 7 42.9% 0 1 1 0.0% 3 4 7 42.9%
26 1976 3 3 6 50.0% 12 10 22 54.5% 0 2 2 0.0% 3 8 11 27.3% 1981 3 5 8 37.5% 3 9 12 25.0% 7 4 11 63.6% 0 1 1 0.0%
27 1977 7 8 15 46.7% 19 5 24 79.2% 0 2 2 0.0% 21 9 30 70.0% 1982 0 1 1 0.0% 1 2 3 33.3% 0 1 1 0.0%
28 1978 1 5 6 16.7% 13 9 22 59.1% 0 3 3 0.0% 2 8 10 20.0%
29 1979 0 3 3 0.0% 2 5 7 28.6% 1 1 2 50.0% 2 4 6 33.3% 1984 0 1 1 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% 26 48 74 35.1% 38 71 109 34.9% 22 28 50 44.0% 6 19 25 24.0%

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 Paul Kronk
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
15 1970 1469 94.8 20.0% -2.80 0–1 +0.21
16 1971 1495 101.1 75.0% +1.25 -0.03
17 1972 1466 95.3 0.0% -2.25 +0.37
18 1968 1471 97.5 +106 +20 -42 37.8% -0.84 0–2 +0.39 1973 1512 106.7 +61 +64 -82 35.9% -0.92 4–1 (80%) 4–3 (57%) 103.8 -0.01
19 1969 1512 107.1 +167 50.0% +0.43 3–1 (75%) +0.31 1974 1501 117.5 -45 +110 29.7% -1.69 4–5 (44%) 5–3 (63%) 103.5 +0.16
20 1970 1565 109.0 +89 -54 -66 46.7% -0.47 1–0 0–2 -0.25 1975 1571 115.6 -109 +6 -89 43.0% -0.51 4–7 (36%) 4–8 (33%) 94.5 +3.42
21 1971 1759 131.8 +6 -154 -148 53.0% +0.15 10–5 (67%) 9–6 (60%) 110.2 -1.12 1976 1536 114.9 -29 -23 -61 38.7% -1.00 0–6 (0%) 5–5 (50%) 94.9 +2.43
22 1972 1826 149.5 +40 -240 43.2% -0.46 10–10 (50%) 9–10 (47%) 102.6 -7.30 1977 1543 116.8 -64 -31 -37 34.4% -1.22 2–4 (33%) 3–4 (43%) 99.2 +0.96
23 1973 1733 135.6 +29 -103 -173 43.0% -0.37 9–15 (38%) 7–10 (41%) 94.9 -4.54 1978 1622 127.1 -127 -92 +21 40.0% -0.87 4–2 (67%) 3–1 (75%) 106.0 +0.89
24 1974 1859 146.3 +25 -114 -273 56.0% +0.23 8–10 (44%) 12–6 (67%) 105.3 -4.92 1979 1578 118.9 -96 -80 +59 38.1% -0.89 3–4 (43%) 4–4 (50%) 100.0 +0.14
25 1975 1808 148.3 +64 -110 -178 53.6% +0.42 11–12 (48%) 5–9 (36%) 95.2 -5.88 1980 1633 122.9 -47 -105 46.9% -0.45 5–5 (50%) 6–4 (60%) 104.9 +1.08
26 1976 1725 143.4 +66 -6 47.9% -0.08 9–9 (50%) 6–8 (43%) 97.4 -2.54 1981 1640 118.8 -84 -155 +97 45.0% -0.36 3–5 (38%) 5–3 (63%) 101.0 +0.81
27 1977 1825 151.8 -12 +75 61.0% +0.81 14–7 (67%) 9–9 (50%) 103.0 +0.48 1982 1600 102.6 -117 25.0% -1.83 1–1 2–1 (67%) -0.03
28 1978 1672 145.7 -11 +208 -147 43.0% -0.37 3–6 (33%) 4–4 (50%) 94.3 -3.12
29 1979 1618 131.4 -19 +166 38.3% -0.58 2–5 (29%) 3–6 (33%) 96.1 -1.00 1984 1571 97.7 25.0% -2.25 +0.16
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%) 100.5 -1.40
32 1982 1742 140.8 -6 -6 -10 53.5% +0.11 4–8 (33%) 9–8 (53%) 99.2 -2.10
33 1983 1652 129.5 -39 +97 +56 43.8% -0.57 5–5 (50%) 9–4 (69%) 104.0 -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 1685 121.5 -53 -33 +11 38.8% -0.90 30–41 (42%) 41–36 (53%) 103.5 +4.14

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.