H2H data updated: 2026-07-18 02:15 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 Santiago third round 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

Date	Tournament	Category	Round	Surface	Winner	Score	Loser	Match
Nov 7, 1996*	Santiago	ATP 250	R32	Clay	Jacobo Diaz #166	6-4 6-4	Lucas Arnold Ker #123	Match data

* Estimated match date where the exact historical date is unavailable.

Career Comparison

Player	Current	Peak	Pts	Elo	W	L	Win %	GS	1000	Finals	500	250	Titles
Lucas Arnold Ker	#1,278	#77	608	1,636	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
Age	Yr	W-L	Win %	Rank	Elo	GS	Titles	Yr	W-L	Win %	Rank	Elo	GS	Titles
17	—	—	—	—	—	—	—	1994	0–1	0.0%	#419	1,489	0	0
19	—	—	—	—	—	—	—	1996	2–4	33.3%	#161	1,506	0	0
20	—	—	—	—	—	—	—	1997	6–8	42.9%	#119	1,556	0	0
21	1996	3–2	60.0%	#123	1,538	0	0	1998	7–9	43.8%	#145	1,576	0	0
22	1997	5–6	45.5%	#112	1,591	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