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

Lucas Arnold Ker vs Jacobo Diaz H2H: 0-1

Jacobo Diaz holds a 1–0 lead over Lucas Arnold Ker in their ATP head-to-head. Across 1 main-draw meeting, Jacobo Diaz leads 1–0 on clay. Most recently, Jacobo Diaz won the 1996 Chile Open round of 32 6-4 6-4.

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Lucas Arnold Ker
ARG Age 51 Right-Handed 180 cm / 5'11"
H2H
0 – 1
1 main draw meetings
Jacobo Diaz
ESP Age 50 Right-Handed 173 cm / 5'8"

H2H Match Log

PlayerScorePlayerMatch DataDateRoundTournamentCategorySurface
Jacobo Diaz #166 6-4 6-4 Lucas Arnold Ker #123 Match data Nov 7, 1996* R32 Chile Open World Series → modern equivalent ATP 250 Clay

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
Lucas Arnold Ker #1,278 #77 608 1,637 19 30 38.8% 0 0 0 0 0 0
Jacobo Diaz #833 #68 622 1,628 28 62 31.1% 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 Lucas Arnold Ker Jacobo Diaz
YrW-LWin %RankEloGSTitles YrW-LWin %RankEloGSTitles
17 — — — — — — — 1994 0–1 0.0% #419 1,489 0 0
19 — — — — — — — 1996 2–4 33.3% #161 1,507 0 0
20 — — — — — — — 1997 6–8 42.9% #119 1,557 0 0
21 1996 3–2 60.0% #123 1,539 0 0 1998 7–9 43.8% #145 1,576 0 0
22 1997 5–6 45.5% #112 1,592 0 0 1999 2–7 22.2% #92 1,503 0 0
23 1998 10–16 38.5% #113 1,589 0 0 2000 1–11 8.3% #111 1,463 0 0
24 1999 1–5 16.7% #380 1,510 0 0 2001 9–14 39.1% #88 1,531 0 0
25 2000 0–1 0.0% #660 1,495 0 0 2002 1–6 14.3% #396 1,509 0 0
26 — — — — — — — 2003 0–2 0.0% #627 1,458 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 Lucas Arnold Ker Jacobo Diaz
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 %
17 — — — — — — — — — — — — — — — — — 1994 — — — — 0 1 1 0.0% — — — — — — — —
19 — — — — — — — — — — — — — — — — — 1996 — — — — 2 4 6 33.3% — — — — — — — —
20 — — — — — — — — — — — — — — — — — 1997 — — — — 6 8 14 42.9% — — — — — — — —
21 1996 — — — — 3 2 5 60.0% — — — — — — — — 1998 0 1 1 0.0% 7 7 14 50.0% — — — — 0 1 1 0.0%
22 1997 0 1 1 0.0% 5 5 10 50.0% — — — — — — — — 1999 0 2 2 0.0% 2 5 7 28.6% — — — — — — — —
23 1998 3 5 8 37.5% 7 10 17 41.2% 0 1 1 0.0% — — — — 2000 1 4 5 20.0% 0 7 7 0.0% — — — — — — — —
24 1999 0 1 1 0.0% 1 4 5 20.0% — — — — — — — — 2001 2 6 8 25.0% 7 7 14 50.0% 0 1 1 0.0% — — — —
25 2000 — — — — 0 1 1 0.0% — — — — — — — — 2002 0 4 4 0.0% 1 2 3 33.3% — — — — — — — —
26 — — — — — — — — — — — — — — — — — 2003 0 1 1 0.0% 0 1 1 0.0% — — — — — — — —
Career — 3 7 10 30.0% 16 22 38 42.1% 0 1 1 0.0% — — — — — 3 18 21 14.3% 25 42 67 37.3% 0 1 1 0.0% 0 1 1 0.0%

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 Lucas Arnold Ker Jacobo Diaz
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
17 — — — — — — — — — — — — — — — — 1994 1490 95.0 — — — — — — — 0.0% -5.50 — — — -0.01
19 — — — — — — — — — — — — — — — — 1996 1508 120.1 — — — — — +24 — 47.1% -0.53 0–3 (0%) 1–0 — -0.43
20 — — — — — — — — — — — — — — — — 1997 1558 121.4 — — — — — +33 — 45.5% -0.36 2–3 (40%) 1–0 — -0.11
21 1996 1539 115.2 +1.16 +0.15 0.984 50.3% — +31 — 53.8% -0.23 2–1 (67%) 2–0 — +0.19 1998 1576 124.5 — — — — — +62 — 44.4% -0.31 1–1 0–2 — +0.33
22 1997 1592 124.4 -0.83 +1.13 0.937 49.3% — +45 — 48.0% -0.16 1–2 (33%) 2–2 (50%) — -0.66 1999 1504 111.7 — — — — — +95 — 34.8% -0.96 0–3 (0%) 1–4 (20%) — +0.70
23 1998 1589 123.2 -3.68 -0.51 0.828 46.4% -16 +20 — 42.3% -0.42 4–4 (50%) 1–3 (25%) — -0.48 2000 1463 116.2 — — — — -4 +75 — 24.1% -1.59 0–4 (0%) 2–2 (50%) — +0.41
24 1999 1510 99.8 -2.02 -0.29 0.870 47.0% — +40 — 29.4% -0.94 1–2 (33%) 1–1 — +0.85 2001 1531 120.5 — — — — -95 +104 — 41.0% -0.75 2–5 (29%) 4–3 (57%) — +0.96
25 2000 1495 93.6 -0.59 -3.36 0.546 38.3% — — — 0.0% -4.50 — — — +0.10 2002 1509 118.2 — — — — -99 +126 — 25.0% -1.06 1–1 0–2 — -0.43
26 — — — — — — — — — — — — — — — — 2003 1459 95.6 -1.09 -1.94 0.692 44.6% — — — 16.7% -1.84 0–1 — — +0.36
33 2008 1490 102.4 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
34 2009 1481 98.5 — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
Career — 1637 121.3 -2.33 -0.16 0.859 47.3% -16 +31 — 42.2% -0.48 8–9 (47%) 6–6 (50%) 102.2 0.00 — 1629 125.9 -1.09 -1.94 0.692 44.6% -69 +69 — 37.7% -0.83 6–21 (22%) 9–13 (41%) 91.5 +1.98

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.