Guillermo Vilas defeated Jaime Fillol Sr. 6–2, 7–5, 3–6, 6–3 to win the November 1977 ATP Buenos Aires singles competition. Vilas was the defending champion.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Final | ||||||||
1 | Guillermo Vilas | 6 | 7 | 3 | 6 | |||
2 | Jaime Fillol Sr. | 2 | 5 | 6 | 3 |
First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
1 | G Vilas | 7 | 6 | ||||||||||||||||||||||||
É Deblicker | 6 | 2 | 1 | G Vilas | 6 | 6 | |||||||||||||||||||||
I Molina | 6 | 2 | 11 | I Molina | 3 | 0 | |||||||||||||||||||||
C Landó | 4 | 6 | 9 | 1 | G Vilas | 6 | 6 | ||||||||||||||||||||
L Álvarez | 2 | 6 | B Prajoux | 3 | 2 | ||||||||||||||||||||||
I Țiriac | 6 | 7 | I Țiriac | 6 | 5 | ||||||||||||||||||||||
B Prajoux | 6 | 6 | B Prajoux | 7 | 7 | ||||||||||||||||||||||
G Goven | 4 | 4 | 1 | G Vilas | 7 | 6 | |||||||||||||||||||||
H Gildemeister | 7 | 6 | H Gildemeister | 6 | 4 | ||||||||||||||||||||||
J Soler | 6 | 4 | H Gildemeister | 6 | 6 | ||||||||||||||||||||||
H Bunis | 7 | 7 | H Bunis | 3 | 0 | ||||||||||||||||||||||
B Manson | 6 | 5 | H Gildemeister | 6 | 6 | ||||||||||||||||||||||
P McNamee | 6 | 6 | M Fishbach | 2 | 2 | ||||||||||||||||||||||
Á Betancur | 2 | 4 | P McNamee | 4 | 4 | ||||||||||||||||||||||
J Andrew | 4 | 4 | M Fishbach | 6 | 6 | ||||||||||||||||||||||
M Fishbach | 6 | 6 |
First Round | Second Round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
V Pecci Sr. | 4 | 6 | 6 | ||||||||||||||||||||||||
J Velasco Sr. | 6 | 2 | 3 | V Pecci Sr. | 6 | 6 | |||||||||||||||||||||
O Parun | 1 | 6 | 3 | Z Guerry | 3 | 2 | |||||||||||||||||||||
Z Guerry | 6 | 3 | 6 | V Pecci Sr. | 6 | 6 | 6 | ||||||||||||||||||||
G Mayer | 6 | 6 | G Mayer | 3 | 7 | 1 | |||||||||||||||||||||
A Muñoz | 4 | 3 | G Mayer | 6 | 6 | ||||||||||||||||||||||
E Caviglia | 1 | 1 | J Higueras | 1 | 4 | ||||||||||||||||||||||
J Higueras | 6 | 6 | V Pecci Sr. | 6 | 1 | 4 | |||||||||||||||||||||
R Cano | 6 | 5 | 3 | 2 | J Fillol Sr. | 4 | 6 | 6 | |||||||||||||||||||
J Pinto-Bravo | 4 | 7 | 6 | J Pinto-Bravo | 6 | 4 | 1 | ||||||||||||||||||||
P Cornejo | 6 | 6 | 7 | P Cornejo | 4 | 6 | 6 | ||||||||||||||||||||
F Dalla Fontana | 4 | 7 | 5 | P Cornejo | 1 | 0 | |||||||||||||||||||||
J L Clerc | 5 | 6 | 3 | 2 | J Fillol Sr. | 6 | 6 | ||||||||||||||||||||
C Kirmayr | 7 | 0 | 6 | C Kirmayr | 4 | 5 | |||||||||||||||||||||
R Benavides | 4 | 6 | 2 | J Fillol Sr. | 6 | 7 | |||||||||||||||||||||
2 | J Fillol Sr. | 6 | 7 |
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