H2H data updated: 2026-10-08 00:00 UTC

Ross Case vs Robert Kreiss H2H: 3-0

Ross Case holds a 3–0 lead over Robert Kreiss in their ATP head-to-head. Across 3 main-draw meetings, Ross Case leads 2–0 on grass and 1–0 on hard courts. Most recently, Ross Case won the 1975 Wimbledon round of 128 7-9 6-3 6-1 8-9 6-3.

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Ross Case
AUS Age 74 Right-Handed
H2H
3 – 0
3 main-draw meetings
Robert Kreiss
USA Age 73

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Ross Case 7-9 6-3 6-1 8-9 6-3 Robert Kreiss Match data Jun 25, 1975* R128 Wimbledon Grand Slam Grass
Ross Case #33 6-2 1-6 6-3 Robert Kreiss Match data Mar 6, 1974* R32 Lacosta Wct ATP 250 Hard
Ross Case 10-12 6-2 6-4 Robert Kreiss Match data Dec 4, 1969* R32 Adelaide International 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
Ross Case #758 #24 0 1,962 293 274 51.7% 0 0 0 0 4 4
Robert Kreiss — — — 1,559 — — — 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 Ross Case Robert Kreiss
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
16 1968 3–3 50.0% — 1,519 0 0 — — — — — — —
17 1969 4–4 50.0% — 1,538 0 0 — — — — — — —
18 1970 11–8 57.9% — 1,560 0 0 — — — — — — —
19 1971 26–20 56.5% — 1,637 0 0 — — — — — — —
20 1972 22–21 51.2% — 1,685 0 0 — — — — — — —
21 1973 42–34 55.3% #42 1,810 0 1 — — — — — — —
22 1974 42–27 60.9% #29 1,819 0 2 — — — — — — —
23 1975 38–21 64.4% #27 1,936 0 4 — — — — — — —
24 1976 28–24 53.8% #45 1,837 0 4 — — — — — — —
25 1977 21–24 46.7% #48 1,749 0 4 — — — — — — —
26 1978 14–19 42.4% #86 1,679 0 4 — — — — — — —
27 1979 24–26 48.0% #74 1,676 0 4 — — — — — — —
28 1980 11–20 35.5% #163 1,621 0 4 — — — — — — —
29 1981 5–15 25.0% — 1,502 0 4 — — — — — — —
30 1982 1–5 16.7% — 1,467 0 4 — — — — — — —
31 1983 1–3 25.0% #415 1,458 0 4 — — — — — — —

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 Ross Case Robert Kreiss
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 — — — — — — — — — — — — — — — — — 1968 0 1 1 0.0% — — — — — — — — — — — —
16 1968 — — — — — — — — 3 3 6 50.0% — — — — 1969 — — — — — — — — 0 1 1 0.0% — — — —
17 1969 — — — — — — — — 4 4 8 50.0% — — — — 1970 — — — — — — — — 0 1 1 0.0% — — — —
18 1970 0 2 2 0.0% 1 3 4 25.0% 10 3 13 76.9% — — — — 1971 1 4 5 20.0% — — — — 0 1 1 0.0% — — — —
19 1971 10 8 18 55.6% 2 5 7 28.6% 14 7 21 66.7% — — — — 1972 1 0 1 100.0% 0 1 1 0.0% — — — — 0 3 3 0.0%
20 1972 6 7 13 46.2% 0 3 3 0.0% 11 7 18 61.1% 5 4 9 55.6% 1973 0 1 1 0.0% 0 1 1 0.0% 0 1 1 0.0% 2 3 5 40.0%
21 1973 10 5 15 66.7% 17 14 31 54.8% 11 7 18 61.1% 4 8 12 33.3% 1974 2 5 7 28.6% 0 5 5 0.0% 1 2 3 33.3% 3 4 7 42.9%
22 1974 15 13 28 53.6% 8 6 14 57.1% 9 5 14 64.3% 10 3 13 76.9% 1975 0 2 2 0.0% 2 6 8 25.0% 0 2 2 0.0% 5 7 12 41.7%
23 1975 21 8 29 72.4% 8 6 14 57.1% 7 2 9 77.8% 2 5 7 28.6% — — — — — — — — — — — — — — — — —
24 1976 5 6 11 45.5% 5 4 9 55.6% 8 4 12 66.7% 10 10 20 50.0% — — — — — — — — — — — — — — — — —
25 1977 8 8 16 50.0% 0 1 1 0.0% 8 7 15 53.3% 5 8 13 38.5% — — — — — — — — — — — — — — — — —
26 1978 4 6 10 40.0% 2 2 4 50.0% 6 5 11 54.5% 2 6 8 25.0% — — — — — — — — — — — — — — — — —
27 1979 4 7 11 36.4% 10 9 19 52.6% 9 5 14 64.3% 1 5 6 16.7% — — — — — — — — — — — — — — — — —
28 1980 2 3 5 40.0% 7 9 16 43.8% 1 4 5 20.0% 1 4 5 20.0% — — — — — — — — — — — — — — — — —
29 1981 1 7 8 12.5% 2 4 6 33.3% 2 3 5 40.0% 0 1 1 0.0% — — — — — — — — — — — — — — — — —
30 1982 0 1 1 0.0% — — — — 0 2 2 0.0% 1 2 3 33.3% — — — — — — — — — — — — — — — — —
31 1983 1 2 3 33.3% — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — — — — — —
Career — 87 83 170 51.2% 62 66 128 48.4% 103 68 171 60.2% 41 57 98 41.8% — 4 13 17 23.5% 2 13 15 13.3% 1 8 9 11.1% 10 17 27 37.0%

Advanced Statistics Comparison by Age

Seasons are aligned by the age each player spent most of that calendar year. Metrics use eligible main-draw results; point statistics use matches with detailed data. 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 Ross Case Robert Kreiss
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 — — — — — — — — — — — — — — — — 1968 1488 101.1 — — — — — — — 33.3% -0.67 0–1 — — -0.09
16 1968 1519 97.0 — — — — — — +27 50.0% -0.57 1–1 — — +0.29 1969 1474 99.6 — — — — — — — 33.3% -1.33 0–1 — — +0.08
17 1969 1538 111.9 — — — — — — +28 40.0% -0.15 2–0 — — +0.08 1970 1470 97.8 — — — — — — — 0.0% -3.50 — — — -0.26
18 1970 1560 109.1 — — — — — -78 +73 50.0% -0.02 4–2 (67%) 1–1 — +2.54 1971 1451 99.3 — — — — +54 — — 23.1% -2.00 0–1 1–1 — +0.25
19 1971 1638 118.4 — — — — -14 -130 +69 53.8% +0.08 7–3 (70%) 6–9 (40%) 101.6 +3.94 1972 1440 107.0 — — — — +72 — — 33.3% -1.67 0–2 2–0 — +0.43
20 1972 1685 119.4 — — — — +9 -217 +88 53.0% -0.09 6–6 (50%) 7–2 (78%) 104.3 +2.53 1973 1458 113.4 — — — — +83 — — 35.0% -0.90 1–3 (25%) 1–4 (20%) 96.0 -0.11
21 1973 1810 144.1 — — — — -3 -97 -9 53.1% +0.25 14–8 (64%) 7–15 (32%) 101.7 -2.70 1974 1490 120.6 — — — — +66 -36 -23 34.5% -0.88 3–5 (38%) 1–4 (20%) 97.4 +0.26
22 1974 1820 143.4 — — — — +14 -89 +26 57.1% +0.54 13–8 (62%) 12–9 (57%) 104.5 -2.20 1975 1490 125.4 — — — — +67 -44 — 37.3% -1.05 2–6 (25%) 3–2 (60%) 99.1 +0.55
23 1975 1936 143.0 — — — — +10 -189 -45 59.7% +0.58 15–10 (60%) 11–3 (79%) 109.4 +0.72 — — — — — — — — — — — — — — — —
24 1976 1837 150.4 — — — — +17 -81 +82 54.5% +0.20 7–11 (39%) 13–14 (48%) 95.2 -3.31 — — — — — — — — — — — — — — — —
25 1977 1750 141.1 — — — — +2 — +96 44.0% -0.15 9–6 (60%) 5–8 (38%) 98.6 -3.52 — — — — — — — — — — — — — — — —
26 1978 1679 126.3 — — — — -11 +31 +126 46.0% -0.43 7–11 (39%) 6–4 (60%) 96.4 +0.45 — — — — — — — — — — — — — — — —
27 1979 1676 135.6 — — — — -76 +31 +155 47.7% -0.18 9–8 (53%) 6–10 (38%) 99.5 -2.48 — — — — — — — — — — — — — — — —
28 1980 1621 128.5 — — — — -49 +76 +125 40.5% -0.63 4–6 (40%) 5–7 (42%) 97.1 -0.60 — — — — — — — — — — — — — — — —
29 1981 1503 104.6 — — — — -34 +123 +209 31.4% -1.16 2–5 (29%) 1–4 (20%) 91.6 +1.19 — — — — — — — — — — — — — — — —
30 1982 1467 105.7 — — — — +2 — — 25.0% -1.12 1–1 0–2 — +0.37 — — — — — — — — — — — — — — — —
31 1983 1459 103.5 — — — — -6 — — 36.4% -0.82 1–2 (33%) 2–3 (40%) 97.8 +0.31 — — — — — — — — — — — — — — — —
Career — 1962 139.2 — — — — -3 -54 +70 50.7% +0.02 102–88 (54%) 82–91 (47%) 99.4 -0.43 — 1560 121.0 — — — — +68 -41 -23 34.1% -1.12 6–19 (24%) 8–11 (42%) 92.7 +1.63

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.