H2H data updated: 2026-09-01 00:00 UTC

Frederik Nielsen vs Sam Groth

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

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Frederik Nielsen
DEN Age 43 Right-Handed 191 cm / 6'3"
H2H
0 – 0
0 main draw meetings
Sam Groth
AUS Age 38 Right-Handed 193 cm / 6'4"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Sam Groth #308 7-6(4) 6-4 Frederik Nielsen #306 Match data Jun 17, 2008* Q3 Q Eastbourne Open International Series → modern equivalent ATP 250 Grass

1 qualifying meeting shown in the table; qualifying is excluded from the H2H score. 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
Frederik Nielsen #1,346 #190 294 1,655 0 11 0.0% 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 Frederik Nielsen Sam Groth
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 2003 0–1 0.0% #660 1,492 0 0 — — — — — — —
20 — — — — — — — 2008 1–1 50.0% #278 1,556 0 0
21 — — — — — — — 2009 1–2 33.3% #279 1,548 0 0
23 2007 0–1 0.0% #331 1,508 0 0 — — — — — — —
24 2008 0–2 0.0% #258 1,545 0 0 — — — — — — —
25 2009 0–2 0.0% #268 1,583 0 0 2013 1–3 25.0% #172 1,553 0 0
26 2010 0–1 0.0% #262 1,598 0 0 2014 9–13 40.9% #81 1,707 0 0
27 2011 0–1 0.0% #236 1,606 0 0 2015 18–21 46.2% #60 1,796 0 0
28 2012 0–1 0.0% #392 1,605 0 0 2016 4–15 21.1% #180 1,636 0 0
29 2013 0–2 0.0% #618 1,634 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 Frederik Nielsen 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 %
19 2003 0 1 1 0.0% — — — — — — — — — — — — — — — — — — — — —
20 — — — — — — — — — — — — — 2008 — — — — — — — — 1 1 2 50.0%
21 — — — — — — — — — — — — — 2009 0 1 1 0.0% — — — — 1 1 2 50.0%
23 2007 — — — — — — — — 0 1 1 0.0% — — — — — — — — — — — — —
24 2008 0 1 1 0.0% — — — — 0 1 1 0.0% — — — — — — — — — — — — —
25 2009 0 2 2 0.0% — — — — — — — — 2013 1 2 3 33.3% — — — — 0 1 1 0.0%
26 2010 0 1 1 0.0% — — — — — — — — 2014 6 11 17 35.3% — — — — 3 2 5 60.0%
27 2011 — — — — 0 1 1 0.0% — — — — 2015 12 15 27 44.4% 1 3 4 25.0% 5 3 8 62.5%
28 2012 0 1 1 0.0% — — — — — — — — 2016 2 11 13 15.4% 0 1 1 0.0% 2 3 5 40.0%
29 2013 0 1 1 0.0% — — — — 0 1 1 0.0% 2017 1 2 3 33.3% — — — — 1 1 2 50.0%
Career — 0 7 7 0.0% 0 1 1 0.0% 0 3 3 0.0% — 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 11/11 of Frederik Nielsen'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 Frederik Nielsen 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%
19 2003 1/1 2.0 0.0 53.7% 36.4% 31.6% 45.5% 33.3% 34.1% 30.0% — —/— — — — — — — — — —
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%
23 2007 1/1 4.0 5.0 59.2% 68.9% 29.0% 66.7% 50.0% 52.6% 37.3% — —/— — — — — — — — — —
24 2008 2/2 4.0 4.0 57.1% 66.9% 43.7% 47.9% 25.4% 57.3% 40.2% — —/— — — — — — — — — —
25 2009 2/2 3.0 0.5 62.1% 67.4% 46.2% 60.0% 28.3% 57.6% 34.5% 2013 4/4 15.5 5.0 64.1% 72.9% 54.7% 64.2% 24.1% 65.9% 32.3%
26 2010 1/1 1.0 3.0 69.7% 47.8% 40.0% 58.3% 12.5% 45.5% 38.6% 2014 22/22 15.6 4.2 61.8% 81.6% 54.3% 67.8% 30.8% 71.1% 28.8%
27 2011 1/1 0.0 1.0 70.0% 53.1% 47.6% 61.5% 50.0% 51.4% 29.4% 2015 39/39 16.0 4.6 61.6% 78.8% 51.4% 66.5% 26.3% 68.1% 28.5%
28 2012 1/1 0.0 3.0 60.0% 58.3% 34.4% 53.8% 16.7% 48.8% 32.6% 2016 18/19 14.8 5.8 58.0% 77.3% 46.6% 63.5% 44.8% 64.2% 29.4%
29 2013 2/2 2.0 2.5 63.6% 52.3% 43.9% 48.8% 32.1% 48.5% 29.7% 2017 5/5 15.8 6.4 56.3% 79.2% 48.1% 67.4% 39.9% 65.9% 26.2%
Career — 11/11 2.3 2.4 61.6% 58.0% 40.9% 54.5% 30.4% 50.8% 34.3% — 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 Frederik Nielsen 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 2003 1492 99.4 -1.21 -0.07 0.456 32.1% — — — 0.0% -5.00 — — — -0.05 — — — — — — — — — — — — — — — —
20 — — — — — — — — — — — — — — — — 2008 1557 104.1 +1.47 -1.35 1.219 53.0% — — — 60.0% +0.20 0–1 2–0 — +0.15
21 — — — — — — — — — — — — — — — — 2009 1548 110.5 -1.72 -0.48 0.708 45.0% — — — 33.3% -1.44 1–0 1–0 — +0.28
22 — — — — — — — — — — — — — — — — 2010 1527 100.7 — — — — — — — — — — — — —
23 2007 1509 107.6 -3.78 -0.17 0.788 45.5% — — — 0.0% -2.50 — — — +0.07 2011 1493 100.0 — — — — — — — — — — — — —
24 2008 1545 107.3 -2.47 +0.27 0.942 48.1% — — — 20.0% -1.00 0–1 0–2 — +0.17 2012 1479 100.4 — — — — — — — — — — — — —
25 2009 1583 110.4 -2.38 -0.31 0.814 46.0% — — — 0.0% -2.25 — 0–1 — -0.04 2013 1553 113.3 -1.09 +0.67 0.946 49.0% -20 — — 40.0% -0.60 0–2 2–0 — -0.22
26 2010 1599 107.1 -3.04 -0.36 0.708 42.3% — — — 0.0% -3.50 — — — +0.12 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 2011 1607 113.1 -0.56 -0.46 0.606 42.1% — — — 0.0% -3.50 — — — -0.12 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 2012 1606 113.9 -3.18 +3.10 0.635 40.4% — — — 0.0% -3.67 — — — -0.12 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 2013 1634 114.9 -0.10 -2.88 0.578 39.6% — — — 0.0% -3.50 — — — -0.05 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 2014 1621 103.4 — — — — — — — — — — — — — 2018 1572 104.4 — — — — — — — — — — — — —
31 2015 1586 95.0 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
32 2016 1570 101.1 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
36 2020 1554 95.8 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
37 2021 1536 94.9 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1656 114.1 -1.97 -0.35 0.697 42.7% — — — 4.2% -2.83 0–1 0–3 (0%) — -0.18 — 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.