In this
Spanish name, the first or paternal
surname is
Díaz and the second or maternal family name is
Ruiz.
Jacobo Díaz Ruiz (born 11 July 1976) is a former professional male tennis player from Spain who retired in 2004. He had a promising juniors career, highlighted by the victory at Roland Garros in 1994. The right-handed player's career-high ATP Entry ranking was World No. 68, achieved in June 2001.
ATP Challenger and ITF Futures finals
Singles: 9 (5–4)
| Legend |
| ATP Challenger (3–4) |
| ITF Futures (2–0) |
|
| Finals by surface |
| Hard (0–0) |
| Clay (5–4) |
| Grass (0–0) |
| Carpet (0–0) |
|
| Result |
W–L |
Date |
Tournament |
Tier |
Surface |
Opponent |
Score |
| Loss |
0–1 |
Jul 1996 |
Tampere, Finland |
Challenger |
Clay |
Attila Sávolt |
6–7, 6–1, 4–6 |
| Win |
1–1 |
Apr 1999 |
Barletta, Italy |
Challenger |
Clay |
Guillermo Cañas |
6–7(6–8), 6–0, 6–3 |
| Loss |
1–2 |
Apr 1999 |
Nice, France |
Challenger |
Clay |
Gastón Gaudio |
2–6, 3–6 |
| Loss |
1–3 |
Sep 1999 |
Seville, Spain |
Challenger |
Clay |
Sebastián Prieto |
6–4, 2–6, 1–6 |
| Loss |
1–4 |
Jul 2000 |
Venice, Italy |
Challenger |
Clay |
Agustín Calleri |
0–6, 1–6 |
| Win |
2–4 |
Aug 2000 |
Kyiv, Ukraine |
Challenger |
Clay |
Solon Peppas |
6–1, 6–3 |
| Win |
3–4 |
May 2001 |
Zagreb, Croatia |
Challenger |
Clay |
Albert Montañés |
7–6(7–5), 3–6, 6–2 |
| Win |
4–4 |
Jun 2004 |
Spain F12, Maspalomas |
Futures |
Clay |
Juan Giner |
6–3, 7–5 |
| Win |
5–4 |
Jul 2004 |
Spain F15, Gandia |
Futures |
Clay |
Héctor Ruiz-Cadenas |
6–4, 7–5 |
Key
| W |
F |
SF |
QF |
#R |
RR | Q# |
P# |
DNQ |
A |
Z# |
PO |
G |
S |
B |
NMS |
NTI |
P |
NH |
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.