H2H data updated: 2026-09-04 00:00 UTC

Nicklas Kroon vs Leif Shiras H2H: 1-0

Nicklas Kroon holds a 1–0 lead over Leif Shiras in their ATP head-to-head. Across 1 main-draw meeting, Nicklas Kroon leads 1–0 on hard courts. Most recently, Nicklas Kroon won the 1990 Miami Open round of 128 6-2 7-6.

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Nicklas Kroon
SWE Age 60 Right-Handed 183 cm / 6'0"
H2H
1 – 0
1 main draw meetings
Leif Shiras
USA Age 67 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Nicklas Kroon #69 6-2 7-6 Leif Shiras #107 Match data Mar 17, 1990* R128 Miami Open Masters 1000 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
Nicklas Kroon #619 #46 437 1,777 48 65 42.5% 0 0 0 0 1 1
Leif Shiras #1,118 #31 291 1,687 71 102 41.0% 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 Nicklas Kroon Leif Shiras
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 1986 0–1 0.0% #328 1,483 0 0 1980 0–2 0.0% #482 1,475 0 0
21 1987 2–2 50.0% #90 1,513 0 0 — — — — — — —
22 1988 10–17 37.0% #196 1,545 0 0 1982 0–1 0.0% — 1,454 0 0
23 1989 15–8 65.2% #46 1,742 0 1 1983 2–2 50.0% #408 1,485 0 0
24 1990 15–18 45.5% #119 1,722 0 1 1984 15–16 48.4% #61 1,555 0 0
25 1991 4–10 28.6% #203 1,622 0 1 1985 17–19 47.2% #123 1,646 0 0
26 1992 2–8 20.0% #222 1,556 0 1 1986 2–5 28.6% #176 1,591 0 0
27 1993 0–1 0.0% #759 1,547 0 1 1987 4–11 26.7% #157 1,524 0 0
28 — — — — — — — 1988 9–12 42.9% #110 1,586 0 0
29 — — — — — — — 1989 14–16 46.7% #85 1,637 0 0
30 — — — — — — — 1990 8–18 30.8% #181 1,553 0 0

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 Nicklas Kroon Leif Shiras
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 %
20 1986 — — — — 0 1 1 0.0% — — — — — — — — 1980 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
21 1987 — — — — 0 1 1 0.0% — — — — 2 1 3 66.7% — — — — — — — — — — — — — — — — —
22 1988 5 7 12 41.7% 5 7 12 41.7% 0 1 1 0.0% 0 2 2 0.0% 1982 0 1 1 0.0% — — — — — — — — — — — —
23 1989 12 3 15 80.0% 1 3 4 25.0% — — — — 2 2 4 50.0% 1983 — — — — — — — — 2 2 4 50.0% — — — —
24 1990 7 8 15 46.7% 4 5 9 44.4% 4 2 6 66.7% 0 3 3 0.0% 1984 3 7 10 30.0% 1 1 2 50.0% 11 6 17 64.7% 0 2 2 0.0%
25 1991 2 3 5 40.0% 2 4 6 33.3% 0 2 2 0.0% 0 1 1 0.0% 1985 3 5 8 37.5% — — — — 8 8 16 50.0% 6 6 12 50.0%
26 1992 0 4 4 0.0% 0 1 1 0.0% 0 2 2 0.0% 2 1 3 66.7% 1986 0 2 2 0.0% — — — — 0 1 1 0.0% 2 2 4 50.0%
27 1993 — — — — — — — — — — — — 0 1 1 0.0% 1987 0 3 3 0.0% 1 4 5 20.0% 2 3 5 40.0% 1 1 2 50.0%
28 — — — — — — — — — — — — — — — — — 1988 5 8 13 38.5% — — — — 0 2 2 0.0% 4 2 6 66.7%
29 — — — — — — — — — — — — — — — — — 1989 7 10 17 41.2% — — — — 3 2 5 60.0% 4 4 8 50.0%
30 — — — — — — — — — — — — — — — — — 1990 4 11 15 26.7% 1 2 3 33.3% 1 3 4 25.0% 2 2 4 50.0%
Career — 26 25 51 51.0% 12 22 34 35.3% 4 7 11 36.4% 6 11 17 35.3% — 22 48 70 31.4% 3 8 11 27.3% 27 27 54 50.0% 19 19 38 50.0%

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 Nicklas Kroon Leif Shiras
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
20 1986 1483 87.8 — — — — — — — 0.0% -6.00 — — — +0.22 1980 1475 97.2 — — — — — — — 0.0% -4.60 — — — -0.03
21 1987 1513 115.6 — — — — +71 — — 55.6% -0.11 0–1 0–1 — +0.28 — — — — — — — — — — — — — — — —
22 1988 1546 126.3 — — — — +8 +5 — 43.8% -0.59 1–4 (20%) 7–2 (78%) 100.6 -0.27 1982 1455 96.8 — — — — — — — 0.0% -3.33 — — — +0.19
23 1989 1742 136.4 — — — — +31 -216 — 59.6% +0.40 6–2 (75%) 5–2 (71%) 106.7 +0.37 1983 1485 108.0 — — — — — — +87 45.5% -0.45 1–0 2–1 (67%) — +0.08
24 1990 1722 131.8 — — — — -17 -141 -91 48.9% -0.13 4–6 (40%) 10–4 (71%) 102.9 -1.90 1984 1556 124.7 — — — — -88 — +124 48.1% -0.20 6–5 (55%) 10–10 (50%) 102.7 +0.82
25 1991 1623 117.8 -2.58 -1.93 0.810 46.1% +42 -33 — 34.2% -1.42 2–3 (40%) 5–1 (83%) 102.9 -0.68 1985 1646 126.8 — — — — -74 — +37 48.4% -0.40 7–8 (47%) 11–8 (58%) 104.1 +0.46
26 1992 1556 118.1 -1.73 -0.74 0.840 47.4% +66 — — 29.6% -1.26 0–2 3–2 (60%) — +0.08 1986 1592 109.4 — — — — -37 — — 42.1% -0.37 1–4 (20%) 3–2 (60%) 98.0 +0.95
27 1993 1547 102.9 -1.07 +0.98 0.699 43.7% — — — 0.0% -3.00 — — — -0.07 1987 1525 112.0 — — — — -4 -15 +97 35.0% -1.00 0–2 3–4 (43%) — +0.97
28 — — — — — — — — — — — — — — — — 1988 1587 128.4 — — — — +10 — — 45.3% -0.21 3–5 (38%) 1–3 (25%) 97.5 -0.08
29 — — — — — — — — — — — — — — — — 1989 1638 124.3 — — — — -38 — +26 45.8% -0.18 8–5 (62%) 6–5 (55%) 105.6 +0.78
30 — — — — — — — — — — — — — — — — 1990 1553 112.8 — — — — +19 -37 +91 28.3% -1.65 3–1 (75%) 2–4 (33%) 102.2 +0.18
Career — 1778 133.2 -2.20 -1.37 0.815 46.5% +20 -73 -91 45.6% -0.47 13–18 (42%) 30–12 (71%) 107.3 -1.74 — 1687 126.2 — — — — -30 -23 +79 42.4% -0.59 29–30 (49%) 38–37 (51%) 104.6 +2.50

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.