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

Klaus Eberhard vs Per Hjertquist H2H: 0-1

Per Hjertquist holds a 1–0 lead over Klaus Eberhard in their ATP head-to-head. Across 1 main-draw meeting, Per Hjertquist leads 1–0 on hard courts. Most recently, Per Hjertquist won the 1981 Tel Aviv semifinal 5-7 6-3 6-3.

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Klaus Eberhard
GER Age 68 Right-Handed
H2H
0 – 1
1 main draw meetings
Per Hjertquist
SWE Age 66 Right-Handed 183 cm / 6'0"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Per Hjertquist #84 5-7 6-3 6-3 Klaus Eberhard Match data Oct 10, 1981* SF Tel Aviv 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
Klaus Eberhard #751 #81 0 1,660 53 72 42.4% 0 0 0 0 0 0
Per Hjertquist #537 #68 0 1,749 55 70 44.0% 0 0 0 0 1 1

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 Klaus Eberhard Per Hjertquist
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 — — — — — — — 1976 0–1 0.0% #310 1,490 0 0
17 — — — — — — — 1977 0–1 0.0% #322 1,479 0 0
18 1976 0–4 0.0% #264 1,465 0 0 1978 3–5 37.5% #244 1,518 0 0
19 1977 2–4 33.3% #246 1,462 0 0 1979 9–6 60.0% #97 1,638 0 0
20 1978 6–7 46.2% #180 1,543 0 0 1980 20–16 55.6% #76 1,749 0 1
21 1979 9–10 47.4% #199 1,595 0 0 1981 15–19 44.1% #88 1,637 0 1
22 1980 11–14 44.0% #104 1,587 0 0 1982 6–12 33.3% — 1,621 0 1
23 1981 15–17 46.9% #89 1,583 0 0 1983 2–7 22.2% #149 1,562 0 1
24 1982 8–12 40.0% — 1,561 0 0 1984 0–3 0.0% #278 1,514 0 1
25 1983 0–1 0.0% #208 1,560 0 0 — — — — — — —
26 1984 0–1 0.0% #278 1,544 0 0 — — — — — — —
27 1985 2–2 50.0% #279 1,557 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 Klaus Eberhard Per Hjertquist
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 %
16 — — — — — — — — — — — — — — — — — 1976 0 1 1 0.0% — — — — — — — — — — — —
17 — — — — — — — — — — — — — — — — — 1977 0 1 1 0.0% — — — — — — — — — — — —
18 1976 0 1 1 0.0% 0 3 3 0.0% — — — — — — — — 1978 1 1 2 50.0% 2 4 6 33.3% — — — — — — — —
19 1977 — — — — 1 3 4 25.0% 1 1 2 50.0% — — — — 1979 4 2 6 66.7% 5 4 9 55.6% — — — — — — — —
20 1978 — — — — 6 6 12 50.0% — — — — 0 1 1 0.0% 1980 5 4 9 55.6% 8 10 18 44.4% 0 1 1 0.0% 7 1 8 87.5%
21 1979 3 3 6 50.0% 6 7 13 46.2% — — — — — — — — 1981 5 9 14 35.7% 10 9 19 52.6% — — — — 0 1 1 0.0%
22 1980 0 4 4 0.0% 11 10 21 52.4% — — — — — — — — 1982 2 3 5 40.0% 3 7 10 30.0% — — — — 1 2 3 33.3%
23 1981 5 7 12 41.7% 10 9 19 52.6% 0 1 1 0.0% — — — — 1983 1 2 3 33.3% 1 4 5 20.0% 0 1 1 0.0% — — — —
24 1982 0 3 3 0.0% 8 7 15 53.3% — — — — 0 2 2 0.0% 1984 0 2 2 0.0% 0 1 1 0.0% — — — — — — — —
25 1983 — — — — — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
26 1984 — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — — — — — —
27 1985 — — — — 2 2 4 50.0% — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 8 18 26 30.8% 44 48 92 47.8% 1 2 3 33.3% 0 4 4 0.0% — 18 25 43 41.9% 29 39 68 42.6% 0 2 2 0.0% 8 4 12 66.7%

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 Klaus Eberhard Per Hjertquist
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
16 — — — — — — — — — — — — — — — — 1976 1490 97.2 — — — — — — — 0.0% -3.00 — — — +0.01
17 — — — — — — — — — — — — — — — — 1977 1479 94.9 — — — — — — — 0.0% -3.50 — — — +0.09
18 1976 1466 103.3 — — — — — +41 — 11.1% -2.33 0–1 1–1 — +0.03 1978 1519 125.1 — — — — — +29 — 47.6% -0.05 1–4 (20%) — — -0.32
19 1977 1463 104.8 — — — — — +41 — 33.3% -1.17 — — — +0.66 1979 1639 127.9 — — — — -29 -31 — 51.4% -0.19 6–1 (86%) 1–1 — +0.72
20 1978 1543 128.6 — — — — — +38 — 48.6% -0.40 2–3 (40%) 4–3 (57%) — +0.03 1980 1750 136.3 — — — — +25 -119 — 52.3% +0.19 6–3 (67%) 2–6 (25%) — +2.14
21 1979 1596 124.6 — — — — -32 +11 — 50.0% -0.11 2–4 (33%) 3–2 (60%) — +0.97 1981 1638 123.2 — — — — +23 +23 — 42.9% -0.74 8–2 (80%) 4–6 (40%) — +1.83
22 1980 1588 117.4 — — — — -92 +40 — 46.6% -0.19 2–3 (40%) 5–6 (45%) — +1.59 1982 1621 127.6 — — — — +53 -25 — 35.6% -0.78 3–2 (60%) 1–4 (20%) — -0.48
23 1981 1584 122.8 — — — — -56 +43 — 47.5% -0.16 6–7 (46%) 5–4 (56%) — +2.56 1983 1563 106.4 — — — — +87 -12 — 32.0% -1.44 1–3 (25%) 2–0 — -0.01
24 1982 1561 113.8 — — — — -88 +77 — 42.0% -0.44 4–3 (57%) 1–3 (25%) — +1.31 1984 1515 96.9 — — — — — — — 14.3% -2.00 0–1 — — +0.52
25 1983 1561 114.1 — — — — — — — 0.0% -3.50 — — — -0.26 — — — — — — — — — — — — — — — —
26 1984 1545 97.6 — — — — — — — 0.0% -3.50 — — — +0.09 — — — — — — — — — — — — — — — —
27 1985 1558 111.4 — — — — — +51 — 46.2% -0.69 2–1 (67%) 1–0 — -0.03 — — — — — — — — — — — — — — — —
Career — 1661 125.8 — — — — -62 +43 — 44.6% -0.40 18–22 (45%) 20–19 (51%) 102.5 +5.56 — 1750 131.7 — — — — +26 -32 — 43.7% -0.49 25–16 (61%) 10–17 (37%) 103.7 +3.60

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.