H2H data updated: 2026-09-03 00:00 UTC

Guillermo Alcaide vs Frederik Nielsen

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

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Guillermo Alcaide
ESP Age 40 Right-Handed 188 cm / 6'2"
H2H
0 – 0
0 main draw meetings
Frederik Nielsen
DEN Age 43 Right-Handed 191 cm / 6'3"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Frederik Nielsen #296 6-3 6-4 Guillermo Alcaide #304 Match data Oct 19, 2009 Q1 Q Stockholm Open 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
Guillermo Alcaide #1,560 #195 255 1,523 0 1 0.0% 0 0 0 0 0 0
Frederik Nielsen #1,346 #190 294 1,655 0 11 0.0% 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 Guillermo Alcaide Frederik Nielsen
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
19 — — — — — — — 2003 0–1 0.0% #660 1,492 0 0
23 — — — — — — — 2007 0–1 0.0% #331 1,508 0 0
24 2010 0–1 0.0% #200 1,511 0 0 2008 0–2 0.0% #258 1,545 0 0
25 — — — — — — — 2009 0–2 0.0% #268 1,583 0 0
26 — — — — — — — 2010 0–1 0.0% #262 1,598 0 0
27 — — — — — — — 2011 0–1 0.0% #236 1,606 0 0
28 — — — — — — — 2012 0–1 0.0% #392 1,605 0 0
29 — — — — — — — 2013 0–2 0.0% #618 1,634 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 Guillermo Alcaide Frederik Nielsen
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% — — — — — — — —
23 — — — — — — — — — — — — — 2007 — — — — — — — — 0 1 1 0.0%
24 2010 — — — — — — — — 0 1 1 0.0% 2008 0 1 1 0.0% — — — — 0 1 1 0.0%
25 — — — — — — — — — — — — — 2009 0 2 2 0.0% — — — — — — — —
26 — — — — — — — — — — — — — 2010 0 1 1 0.0% — — — — — — — —
27 — — — — — — — — — — — — — 2011 — — — — 0 1 1 0.0% — — — —
28 — — — — — — — — — — — — — 2012 0 1 1 0.0% — — — — — — — —
29 — — — — — — — — — — — — — 2013 0 1 1 0.0% — — — — 0 1 1 0.0%
Career — — — — — — — — — 0 1 1 0.0% — 0 7 7 0.0% 0 1 1 0.0% 0 3 3 0.0%

Performance Progression by Age

Seasons are aligned by the age each player spent most of that calendar year. 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 Guillermo Alcaide Frederik Nielsen
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%
23 — —/— — — — — — — — — — 2007 1/1 4.0 5.0 59.2% 68.9% 29.0% 66.7% 50.0% 52.6% 37.3%
24 2010 1/1 11.0 6.0 61.2% 75.0% 42.1% 57.1% 25.0% 62.2% 31.1% 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%
26 — —/— — — — — — — — — — 2010 1/1 1.0 3.0 69.7% 47.8% 40.0% 58.3% 12.5% 45.5% 38.6%
27 — —/— — — — — — — — — — 2011 1/1 0.0 1.0 70.0% 53.1% 47.6% 61.5% 50.0% 51.4% 29.4%
28 — —/— — — — — — — — — — 2012 1/1 0.0 3.0 60.0% 58.3% 34.4% 53.8% 16.7% 48.8% 32.6%
29 — —/— — — — — — — — — — 2013 2/2 2.0 2.5 63.6% 52.3% 43.9% 48.8% 32.1% 48.5% 29.7%
Career — 1/1 11.0 6.0 61.2% 75.0% 42.1% 57.1% 25.0% 62.2% 31.1% — 11/11 2.3 2.4 61.6% 58.0% 40.9% 54.5% 30.4% 50.8% 34.3%

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 Guillermo Alcaide Frederik Nielsen
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
21 2007 1504 100.0 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
22 2008 1492 101.7 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
23 2009 1455 98.6 — — — — — — — — — — — — — 2007 1509 107.6 -3.78 -0.17 0.788 45.5% — — — 0.0% -2.50 — — — +0.07
24 2010 1511 102.7 +0.03 +1.07 0.825 46.1% — — — 0.0% -2.00 — 0–1 — -0.08 2008 1545 107.3 -2.47 +0.27 0.942 48.1% — — — 20.0% -1.00 0–1 0–2 — +0.17
25 2011 1473 99.4 — — — — — — — — — — — — — 2009 1583 110.4 -2.38 -0.31 0.814 46.0% — — — 0.0% -2.25 — 0–1 — -0.04
26 — — — — — — — — — — — — — — — — 2010 1599 107.1 -3.04 -0.36 0.708 42.3% — — — 0.0% -3.50 — — — +0.12
27 — — — — — — — — — — — — — — — — 2011 1607 113.1 -0.56 -0.46 0.606 42.1% — — — 0.0% -3.50 — — — -0.12
28 — — — — — — — — — — — — — — — — 2012 1606 113.9 -3.18 +3.10 0.635 40.4% — — — 0.0% -3.67 — — — -0.12
29 — — — — — — — — — — — — — — — — 2013 1634 114.9 -0.10 -2.88 0.578 39.6% — — — 0.0% -3.50 — — — -0.05
30 — — — — — — — — — — — — — — — — 2014 1621 103.4 — — — — — — — — — — — — —
31 — — — — — — — — — — — — — — — — 2015 1586 95.0 — — — — — — — — — — — — —
32 — — — — — — — — — — — — — — — — 2016 1570 101.1 — — — — — — — — — — — — —
36 — — — — — — — — — — — — — — — — 2020 1554 95.8 — — — — — — — — — — — — —
37 — — — — — — — — — — — — — — — — 2021 1536 94.9 — — — — — — — — — — — — —
Career — 1523 101.1 +0.03 +1.07 0.825 46.1% — — — 0.0% -2.00 — 0–1 — -8.00 — 1656 114.1 -1.97 -0.35 0.697 42.7% — — — 4.2% -2.83 0–1 0–3 (0%) — -0.18

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.