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

Boris Becker vs Ken Flach H2H: 2-0

Boris Becker holds a 2–0 lead over Ken Flach in their ATP head-to-head. Across 2 main-draw meetings, Boris Becker leads 1–0 on grass and 1–0 on hard courts. Most recently, Boris Becker won the 1986 Stratton Mountain round of 32 6-4 6-7 6-4.

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Boris Becker
GER Age 58 Right-Handed 190 cm / 6'3"
H2H
2 – 0
2 main draw meetings
Ken Flach
USA Right-Handed 185 cm / 6'1"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Boris Becker #3 6-4 6-7 6-4 Ken Flach #147 Match data Aug 7, 1986* R32 Stratton Mountain ATP 250 Hard
Boris Becker #3 6-2 6-2 Ken Flach #169 Match data Jun 11, 1986* R64 Queen's Club Championships ATP 250 Grass

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
Boris Becker #257 #1 4,297 2,268 672 220 75.3% 6 5 4 13 21 49
Ken Flach #815 #56 130 1,715 52 80 39.4% 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 Boris Becker Ken Flach
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
15 1983 0–1 0.0% — 1,497 0 0 — — — — — — —
16 1984 11–11 50.0% #66 1,651 0 0 — — — — — — —
17 1985 50–18 73.5% #6 2,067 1 3 — — — — — — —
18 1986 65–13 83.3% #2 2,230 2 9 — — — — — — —
19 1987 50–15 76.9% #5 2,054 2 12 1982 0–1 0.0% — 1,498 0 0
20 1988 50–9 84.7% #4 2,185 2 19 1983 2–3 40.0% #314 1,521 0 0
21 1989 54–8 87.1% #2 2,234 4 24 1984 7–6 53.8% #155 1,599 0 0
22 1990 69–14 83.1% #2 2,208 4 29 1985 12–12 50.0% #60 1,676 0 0
23 1991 46–13 78.0% #3 2,139 5 31 1986 4–15 21.1% #223 1,557 0 0
24 1992 50–16 75.8% #5 2,148 5 36 1987 10–13 43.5% #100 1,621 0 0
25 1993 42–22 65.6% #11 1,898 5 38 1988 7–12 36.8% #203 1,618 0 0
26 1994 50–17 74.6% #3 2,050 5 42 1989 6–7 46.2% #194 1,651 0 0
27 1995 51–18 73.9% #4 2,056 5 44 1990 3–6 33.3% #222 1,611 0 0
28 1996 42–14 75.0% #6 2,100 6 49 1991 0–2 0.0% #572 1,575 0 0
29 1997 17–13 56.7% #62 1,945 6 49 1992 0–1 0.0% #742 1,559 0 0
30 1998 15–11 57.7% #69 1,893 6 49 — — — — — — —
31 1999 10–7 58.8% #131 1,884 6 49 1994 1–1 50.0% #514 1,575 0 0
32 — — — — — — — 1995 0–1 0.0% #835 1,570 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 Boris Becker Ken Flach
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 1983 — — — — — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
16 1984 1 3 4 25.0% 2 3 5 40.0% 6 3 9 66.7% 2 2 4 50.0% — — — — — — — — — — — — — — — — —
17 1985 12 3 15 80.0% 9 5 14 64.3% 13 1 14 92.9% 16 9 25 64.0% — — — — — — — — — — — — — — — — —
18 1986 24 4 28 85.7% 10 4 14 71.4% 10 1 11 90.9% 21 4 25 84.0% — — — — — — — — — — — — — — — — —
19 1987 22 6 28 78.6% 9 3 12 75.0% 9 2 11 81.8% 10 4 14 71.4% 1982 — — — — 0 1 1 0.0% — — — — — — — —
20 1988 17 2 19 89.5% 6 4 10 60.0% 12 1 13 92.3% 15 2 17 88.2% 1983 1 1 2 50.0% 0 1 1 0.0% 1 1 2 50.0% — — — —
21 1989 15 3 18 83.3% 12 3 15 80.0% 7 0 7 100.0% 20 2 22 90.9% 1984 3 2 5 60.0% — — — — 3 3 6 50.0% 1 1 2 50.0%
22 1990 25 5 30 83.3% 8 4 12 66.7% 10 2 12 83.3% 26 3 29 89.7% 1985 10 8 18 55.6% — — — — 1 2 3 33.3% 1 2 3 33.3%
23 1991 17 5 22 77.3% 10 3 13 76.9% 6 1 7 85.7% 13 4 17 76.5% 1986 2 6 8 25.0% 0 3 3 0.0% 2 2 4 50.0% 0 4 4 0.0%
24 1992 17 5 22 77.3% 6 5 11 54.5% 4 2 6 66.7% 23 4 27 85.2% 1987 6 8 14 42.9% — — — — 4 4 8 50.0% 0 1 1 0.0%
25 1993 14 7 21 66.7% 5 6 11 45.5% 7 2 9 77.8% 16 7 23 69.6% 1988 2 6 8 25.0% 0 1 1 0.0% 3 2 5 60.0% 2 3 5 40.0%
26 1994 19 6 25 76.0% 5 2 7 71.4% 5 2 7 71.4% 21 7 28 75.0% 1989 3 4 7 42.9% — — — — 2 1 3 66.7% 1 2 3 33.3%
27 1995 13 6 19 68.4% 6 4 10 60.0% 9 2 11 81.8% 23 6 29 79.3% 1990 2 4 6 33.3% — — — — 1 1 2 50.0% 0 1 1 0.0%
28 1996 9 3 12 75.0% 5 4 9 55.6% 7 1 8 87.5% 21 6 27 77.8% 1991 0 1 1 0.0% — — — — — — — — 0 1 1 0.0%
29 1997 4 4 8 50.0% 4 4 8 50.0% 7 2 9 77.8% 2 3 5 40.0% 1992 0 1 1 0.0% — — — — — — — — — — — —
30 1998 4 4 8 50.0% 10 4 14 71.4% 0 1 1 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
31 1999 5 3 8 62.5% 1 2 3 33.3% 4 2 6 66.7% — — — — 1994 1 1 2 50.0% — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — — 1995 — — — — — — — — 0 1 1 0.0% — — — —
Career — 218 69 287 76.0% 108 60 168 64.3% 116 25 141 82.3% 230 66 296 77.7% — 30 42 72 41.7% 0 6 6 0.0% 17 17 34 50.0% 5 15 20 25.0%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. Detailed serve and return statistics available for 365/454 of Boris Becker's and 6/6 of Ken Flach's main draw matches. Sample is shown as matches with detailed serve and return statistics / total main draw matches. Bold green marks the stronger value when both stat samples contain at least 5 matches; lower is better for DFs/M.

Age Boris Becker Ken Flach
Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts% Yr Sample Aces/M DFs/M 1st Sv% 1st Pts% 2nd Pts% BP Saved% BP Conv% Svc Pts% Ret Pts%
23 1991 49/59 8.6 3.6 61.8% 75.0% 54.6% 60.4% 48.0% 67.2% 40.5% — —/— — — — — — — — — —
24 1992 51/66 8.6 4.1 58.3% 77.7% 52.1% 60.6% 44.1% 66.7% 39.5% — —/— — — — — — — — — —
25 1993 53/64 9.4 5.3 56.2% 79.4% 50.9% 60.9% 40.4% 66.9% 38.3% — —/— — — — — — — — — —
26 1994 57/67 10.2 4.8 56.9% 80.0% 51.8% 59.0% 43.8% 67.9% 38.5% — —/— — — — — — — — — —
27 1995 51/69 12.3 5.4 57.6% 82.8% 48.3% 66.9% 41.5% 68.2% 38.7% — —/— — — — — — — — — —
28 1996 40/56 11.4 4.8 55.3% 80.9% 51.6% 65.3% 41.3% 67.9% 38.3% 1991 2/2 7.5 1.5 65.6% 70.8% 56.1% 41.7% 16.7% 65.7% 33.4%
29 1997 26/30 10.1 5.3 52.4% 82.6% 50.8% 59.3% 43.3% 67.6% 39.1% 1992 1/1 6.0 3.0 50.8% 74.2% 40.0% 25.0% 0.0% 57.4% 32.4%
30 1998 24/26 10.3 5.7 53.4% 81.3% 54.1% 66.8% 37.6% 68.5% 36.4% — —/— — — — — — — — — —
31 1999 14/17 9.4 6.2 56.4% 75.7% 48.2% 72.5% 40.4% 63.4% 36.3% 1994 2/2 9.5 3.0 59.7% 71.7% 42.9% 70.0% 50.0% 60.3% 28.8%
32 — —/— — — — — — — — — — 1995 1/1 10.0 14.0 48.1% 75.9% 41.5% 57.1% 41.2% 58.0% 41.3%

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 Boris Becker Ken Flach
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 1983 1498 109.2 — — — — — — — 33.3% -0.33 0–1 — — -0.15 — — — — — — — — — — — — — — — —
16 1984 1652 125.5 — — — — -107 -114 +56 51.9% +0.44 4–3 (57%) 4–4 (50%) — +1.18 — — — — — — — — — — — — — — — —
17 1985 2067 165.6 — — — — -84 -354 -69 66.5% +1.04 12–7 (63%) 21–12 (64%) — -5.70 — — — — — — — — — — — — — — — —
18 1986 2230 166.7 — — — — +18 -420 -90 76.2% +1.56 10–4 (71%) 20–10 (67%) — -4.39 — — — — — — — — — — — — — — — —
19 1987 2054 163.4 — — — — +82 -116 +61 71.3% +1.28 11–8 (58%) 11–7 (61%) — -0.33 1982 1499 112.4 — — — — — — — 0.0% -4.00 — — — -0.28
20 1988 2185 166.8 — — — — +61 -253 -15 76.6% +1.64 10–5 (67%) 12–10 (55%) — -2.83 1983 1522 107.7 — — — — — — — 41.7% -0.75 — 0–2 — +0.25
21 1989 2235 168.7 — — — — +36 -246 -12 78.5% +1.87 10–2 (83%) 14–9 (61%) — -2.12 1984 1599 117.5 — — — — +21 — -14 51.2% -0.05 4–3 (57%) 2–4 (33%) — +0.63
22 1990 2208 168.9 — — — — +57 -259 +56 75.2% +1.46 14–3 (82%) 20–7 (74%) — -2.05 1985 1676 134.2 — — — — +19 — -94 44.8% -0.26 4–0 (100%) 4–2 (67%) — -0.49
23 1991 2140 162.8 +6.09 +2.65 1.234 53.4% +57 -134 +116 72.6% +1.23 11–4 (73%) 19–13 (59%) — -1.24 1986 1557 111.4 — — — — +7 -76 +56 29.4% -1.16 2–4 (33%) 2–4 (33%) — -0.12
24 1992 2148 164.3 +4.99 +2.39 1.187 52.7% +61 -224 +55 67.8% +0.88 12–5 (71%) 25–7 (78%) — -2.14 1987 1622 115.8 — — — — -40 — +10 48.6% -0.39 2–5 (29%) 9–4 (69%) — +1.50
25 1993 1898 154.7 +4.71 +0.72 1.157 52.2% +88 -80 +320 62.7% +0.83 11–8 (58%) 13–16 (45%) — -0.41 1988 1618 116.8 — — — — -94 — +56 42.1% -0.67 4–5 (44%) 4–5 (44%) — -1.49
26 1994 2051 165.7 +5.66 +1.82 1.199 52.9% +17 -187 +155 66.5% +0.92 15–6 (71%) 18–14 (56%) — -2.44 1989 1652 118.7 — — — — -87 — +41 48.9% -0.31 3–4 (43%) 7–5 (58%) — -0.04
27 1995 2057 166.6 +5.70 +2.11 1.216 53.3% +32 -189 +75 67.4% +1.08 14–7 (67%) 22–20 (52%) — -2.23 1990 1612 118.0 — — — — -53 — — 44.0% -0.40 1–4 (20%) 2–1 (67%) — -0.05
28 1996 2101 162.9 +5.38 +1.75 1.195 52.8% +65 -284 +79 70.8% +1.22 12–4 (75%) 14–11 (56%) — -2.48 1991 1576 100.1 -1.14 -2.20 0.974 48.8% — — — 20.0% -1.20 0–1 1–1 — +0.27
29 1997 1946 142.8 +3.95 +2.10 1.206 53.0% +79 -105 +199 63.4% +0.84 2–5 (29%) 8–8 (50%) — -0.94 1992 1559 98.8 -2.84 -0.85 0.759 44.2% — — — 0.0% -3.00 — — — +0.08
30 1998 1893 149.7 +5.10 +0.64 1.155 51.9% +23 +66 — 58.3% +0.38 4–5 (44%) 10–7 (59%) — -2.21 — — — — — — — — — — — — — — — —
31 1999 1885 133.0 +0.67 +0.35 0.991 50.1% +10 — +155 59.5% +0.26 3–2 (60%) 5–2 (71%) — -0.70 1994 1576 112.6 -0.30 +1.03 0.724 46.6% — — — 40.0% -1.00 1–0 1–0 — -0.06
32 — — — — — — — — — — — — — — — — 1995 1571 105.1 +1.22 +5.29 0.983 49.9% — — — 40.0% 0.00 0–1 0–1 — -0.28
Career — 2269 168.9 +5.11 +1.77 1.186 52.7% +39 -199 +64 69.8% +1.18 155–79 (66%) 236–157 (60%) 106.7 -3.55 — 1715 126.9 -0.75 +0.35 0.851 47.5% -29 -76 +12 43.2% -0.53 21–27 (44%) 32–29 (52%) 100.9 -0.06

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.