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

Grega Zemlja vs Sam Groth

Compare the head-to-head record, career totals, season-by-season performance, and match log for Grega Zemlja vs Sam Groth.

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Grega Zemlja
SLO Age 39 Right-Handed 183 cm / 6'0"
H2H
0 – 0
0 main draw meetings
Sam Groth
AUS Age 38 Right-Handed 193 cm / 6'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Grega Zemlja #142 6-3 3-6 6-4 Sam Groth #260 Match data Jan 2, 2011 Q1 Q Brisbane International ATP 250 Hard

1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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
Grega Zemlja #1,144 #43 925 1,816 28 36 43.8% 0 0 0 0 0 0
Sam Groth #1,155 #53 843 1,849 36 58 38.3% 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 Grega Zemlja Sam Groth
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
20 — — — — — — — 2008 1–1 50.0% #278 1,556 0 0
21 — — — — — — — 2009 1–2 33.3% #279 1,548 0 0
22 2009 0–2 0.0% #174 1,500 0 0 — — — — — — —
23 2010 3–4 42.9% #142 1,616 0 0 — — — — — — —
24 2011 1–3 25.0% #116 1,588 0 0 — — — — — — —
25 2012 10–7 58.8% #55 1,775 0 0 2013 1–3 25.0% #172 1,553 0 0
26 2013 13–19 40.6% #121 1,719 0 0 2014 9–13 40.9% #81 1,707 0 0
27 — — — — — — — 2015 18–21 46.2% #60 1,796 0 0
28 — — — — — — — 2016 4–15 21.1% #180 1,636 0 0
29 2016 1–1 50.0% #155 1,609 0 0 2017 2–3 40.0% #248 1,594 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 Grega Zemlja Sam Groth
Yr HardClayGrass Yr HardClayGrass
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 — — — — — — — — — — — — — 2008 — — — — — — — — 1 1 2 50.0%
21 — — — — — — — — — — — — — 2009 0 1 1 0.0% — — — — 1 1 2 50.0%
22 2009 — — — — 0 1 1 0.0% 0 1 1 0.0% — — — — — — — — — — — — —
23 2010 2 3 5 40.0% 1 1 2 50.0% — — — — — — — — — — — — — — — — —
24 2011 0 2 2 0.0% — — — — 1 1 2 50.0% — — — — — — — — — — — — —
25 2012 9 5 14 64.3% — — — — 1 2 3 33.3% 2013 1 2 3 33.3% — — — — 0 1 1 0.0%
26 2013 4 11 15 26.7% 5 5 10 50.0% 4 3 7 57.1% 2014 6 11 17 35.3% — — — — 3 2 5 60.0%
27 — — — — — — — — — — — — — 2015 12 15 27 44.4% 1 3 4 25.0% 5 3 8 62.5%
28 — — — — — — — — — — — — — 2016 2 11 13 15.4% 0 1 1 0.0% 2 3 5 40.0%
29 2016 — — — — 1 1 2 50.0% — — — — 2017 1 2 3 33.3% — — — — 1 1 2 50.0%
Career — 15 21 36 41.7% 7 8 15 46.7% 6 7 13 46.2% — 22 42 64 34.4% 1 4 5 20.0% 13 12 25 52.0%

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 64/64 of Grega Zemlja's and 93/94 of Sam Groth'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 Grega Zemlja Sam Groth
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%
20 — —/— — — — — — — — — — 2008 2/2 19.0 6.0 54.6% 87.5% 56.2% 78.6% 37.5% 72.7% 33.2%
21 — —/— — — — — — — — — — 2009 3/3 10.3 8.3 49.4% 71.0% 48.2% 60.8% 100.0% 59.3% 28.8%
22 2009 2/2 3.5 4.5 58.5% 63.6% 45.5% 46.4% 16.7% 55.8% 28.6% — —/— — — — — — — — — —
23 2010 7/7 9.4 2.1 60.8% 70.9% 58.6% 57.5% 41.3% 66.1% 31.9% — —/— — — — — — — — — —
24 2011 4/4 6.0 3.0 64.4% 65.9% 53.3% 51.8% 22.8% 61.2% 33.1% — —/— — — — — — — — — —
25 2012 17/17 7.8 2.5 59.3% 70.3% 49.0% 58.1% 43.2% 61.5% 36.4% 2013 4/4 15.5 5.0 64.1% 72.9% 54.7% 64.2% 24.1% 65.9% 32.3%
26 2013 32/32 7.3 3.6 57.1% 71.0% 44.9% 58.7% 35.4% 60.0% 35.0% 2014 22/22 15.6 4.2 61.8% 81.6% 54.3% 67.8% 30.8% 71.1% 28.8%
27 — —/— — — — — — — — — — 2015 39/39 16.0 4.6 61.6% 78.8% 51.4% 66.5% 26.3% 68.1% 28.5%
28 — —/— — — — — — — — — — 2016 18/19 14.8 5.8 58.0% 77.3% 46.6% 63.5% 44.8% 64.2% 29.4%
29 2016 2/2 2.5 1.5 50.0% 68.1% 49.8% 68.8% 34.8% 58.8% 43.6% 2017 5/5 15.8 6.4 56.3% 79.2% 48.1% 67.4% 39.9% 65.9% 26.2%
Career — 64/64 7.3 3.1 58.4% 70.1% 48.2% 57.9% 36.7% 61.0% 35.0% — 93/94 15.5 5.0 60.2% 78.9% 51.1% 66.3% 34.2% 67.6% 28.9%

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 Grega Zemlja Sam Groth
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
19 2006 1482 98.2 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
20 2007 1469 98.5 — — — — — — — — — — — — — 2008 1557 104.1 +1.47 -1.35 1.219 53.0% — — — 60.0% +0.20 0–1 2–0 — +0.15
21 2008 1476 100.9 — — — — — — — — — — — — — 2009 1548 110.5 -1.72 -0.48 0.708 45.0% — — — 33.3% -1.44 1–0 1–0 — +0.28
22 2009 1501 100.5 -1.00 -2.32 0.647 42.1% — — — 0.0% -2.80 — — — -0.10 2010 1527 100.7 — — — — — — — — — — — — —
23 2010 1616 121.4 +1.79 -0.54 0.940 49.9% -5 — — 40.0% -0.35 1–1 1–2 (33%) — -0.13 2011 1493 100.0 — — — — — — — — — — — — —
24 2011 1589 113.3 -0.21 -2.04 0.852 47.2% — — — 40.0% -1.07 0–1 1–1 — -0.10 2012 1479 100.4 — — — — — — — — — — — — —
25 2012 1776 133.5 -0.62 +0.21 0.945 49.0% +24 — -150 53.2% -0.06 4–1 (80%) 7–2 (78%) — +0.56 2013 1553 113.3 -1.09 +0.67 0.946 49.0% -20 — — 40.0% -0.60 0–2 2–0 — -0.22
26 2013 1720 137.2 -1.50 -1.44 0.877 47.7% -39 -96 -13 44.0% -0.57 5–5 (50%) 10–7 (59%) — -1.83 2014 1708 131.6 +4.20 -3.96 0.998 49.9% -73 — +91 41.8% -0.15 3–4 (43%) 11–13 (46%) — +0.17
27 2014 1683 98.4 — — — — — — — — — — — — — 2015 1797 142.6 +2.73 -5.23 0.895 48.7% -77 -215 +92 46.9% -0.37 6–8 (43%) 18–13 (58%) — -0.77
28 2015 1668 104.9 — — — — — — — — — — — — — 2016 1636 125.3 +0.82 -4.85 0.819 47.1% -67 — +169 24.4% -1.29 0–2 2–11 (15%) — -1.24
29 2016 1610 108.2 -1.22 -0.54 1.058 51.3% — — — 50.0% +0.25 — — — +0.33 2017 1594 116.2 -0.83 -1.85 0.767 47.3% -41 — — 35.7% -0.86 2–0 1–2 (33%) — -0.26
30 2017 1570 97.4 — — — — — — — — — — — — — 2018 1572 104.4 — — — — — — — — — — — — —
Career — 1817 124.8 -0.80 -0.94 0.897 48.2% -8 -96 -54 44.6% -0.49 10–8 (56%) 19–12 (61%) 108.4 -1.98 — 1849 129.9 +2.18 -4.18 0.894 48.6% -69 -215 +113 40.3% -0.56 12–17 (41%) 37–39 (49%) 98.2 -2.01

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.