Gabriel Markus (born 31 March 1970) is a former professional tennis player from Argentina.
ATP career finals
Singles: 2 (1 title, 1 runner-up)
| Legend |
| Grand Slam Tournaments (0–0) |
| ATP World Tour Finals (0–0) |
| ATP Masters Series (0–0) |
| ATP Championship Series (0–0) |
| ATP World Series (1–1) |
|
| Finals by surface |
| Hard (0–0) |
| Clay (1–1) |
| Grass (0–0) |
| Carpet (0–0) |
|
| Finals by setting |
| Outdoors (1–1) |
| Indoors (0–0) |
|
Doubles: 1 (1 title)
| Legend |
| Grand Slam Tournaments (0–0) |
| ATP World Tour Finals (0–0) |
| ATP Masters Series (0–0) |
| ATP Championship Series (0–0) |
| ATP World Series (1–0) |
|
| Finals by surface |
| Hard (0–0) |
| Clay (1–0) |
| Grass (0–0) |
| Carpet (0–0) |
|
| Finals by setting |
| Outdoors (1–0) |
| Indoors (0–0) |
|
ATP Challenger and ITF Futures Finals
Singles: 12 (5–7)
| Legend |
| ATP Challenger (5–7) |
| ITF Futures (0–0) |
|
| Finals by surface |
| Hard (0–1) |
| Clay (5–6) |
| Grass (0–0) |
| Carpet (0–0) |
|
| Result |
W–L |
Date |
Tournament |
Tier |
Surface |
Opponent |
Score |
| Win |
1–0 |
Jul 1989 |
Santos, Brazil |
Challenger |
Clay |
Christian Miniussi |
6–2, 6–2 |
| Loss |
1–1 |
Jan 1991 |
Viña del Mar, Chile |
Challenger |
Clay |
Gustavo Giussani |
6–4, 2–6, 0–6 |
| Win |
2–1 |
Feb 1991 |
São Paulo, Brazil |
Challenger |
Clay |
João Cunha-Silva |
4–6, 6–4, 6–4 |
| Loss |
2–2 |
Apr 1991 |
Birmingham, United States |
Challenger |
Clay |
Marcelo Ingaramo |
6–3, 3–6, 2–6 |
| Loss |
2–3 |
May 1991 |
São Paulo, Brazil |
Challenger |
Hard |
Fernando Roese |
4–6, 3–6 |
| Loss |
2–4 |
Sep 1991 |
Bucharest, Romania |
Challenger |
Clay |
Marcelo Filippini |
3–6, 4–6 |
| Loss |
2–5 |
Nov 1991 |
São Paulo, Brazil |
Challenger |
Clay |
Raúl Viver |
6–7, 6–3, 3–6 |
| Win |
3–5 |
Jul 1992 |
Salerno, Italy |
Challenger |
Clay |
Emilio Benfele Álvarez |
7–6, 6–1 |
| Loss |
3–6 |
Feb 1993 |
Punta del Este, Uruguay |
Challenger |
Clay |
Javier Frana |
6–4, 2–6, 6–7 |
| Win |
4–6 |
Aug 1993 |
Geneva, Switzerland |
Challenger |
Clay |
Karol Kučera |
3–6, 6–2, 7–5 |
| Loss |
4–7 |
Sep 1993 |
Oporto, Portugal |
Challenger |
Clay |
Franco Davín |
4–6, 3–6 |
| Win |
5–7 |
Apr 1994 |
São Paulo, Brazil |
Challenger |
Clay |
Hernán Gumy |
2–6, 6–4, 6–4 |
Doubles: 4 (0–4)
| Legend |
| ATP Challenger (0–4) |
| ITF Futures (0–0) |
|
| Finals by surface |
| Hard (0–0) |
| Clay (0–4) |
| Grass (0–0) |
| Carpet (0–0) |
|
| Result |
W–L |
Date |
Tournament |
Tier |
Surface |
Partner |
Opponents |
Score |
| Loss |
0–1 |
Aug 1990 |
São Paulo, Brazil |
Challenger |
Clay |
João Zwetsch |
Cássio Motta Javier Frana |
3–6, 6–3, 1–6 |
| Loss |
0–2 |
Jan 1991 |
Viña del Mar, Chile |
Challenger |
Clay |
Francisco Yunis |
Juan-Antonio Pino-Perez Mario Tabares |
3–6, 2–6 |
| Loss |
0–3 |
Jul 1992 |
Salerno, Italy |
Challenger |
Clay |
Daniel Orsanic |
Andrew Kratzmann Roger Rasheed |
4–6, 3–6 |
| Loss |
0–4 |
Oct 1992 |
Buenos Aires, Argentina |
Challenger |
Clay |
Horacio de la Peña |
Pablo Albano Javier Frana |
6–2, 3–6, 4–6 |
Key
| W |
F |
SF |
QF |
#R |
RR | Q# |
DNQ |
A |
NH |
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.