25‑Nov‑1985 | Bahia CH | Hard | R32 | 73 | 30 | (3)Peter Lundgren [SWE] d. Arguello | 6-1 6-0 | | | | | | | | | |
11‑Nov‑1985 | Sao Paulo CH | Clay | R32 | 75 | 207 | (WC)Cesar Kist [BRA] d. (1)Arguello | 6-2 6-0 | | | | | | | | | |
23‑Sep‑1985 | Barcelona | Clay | R16 | 79 | 87 | Emilio Sanchez [ESP] d. Arguello | 6-0 6-4 | | | | | | | | | |
23‑Sep‑1985 | Barcelona | Clay | R32 | 79 | 6 | Arguello d. (2)Yannick Noah [FRA] | 7-6 2-6 6-4 | | | | | | | | | |
23‑Sep‑1985 | Barcelona | Clay | R64 | 79 | 214 | Arguello d. (Q)Michael Robertson [USA] | 6-1 7-5 | | | | | | | | | |
16‑Sep‑1985 | Geneva | Clay | QF | 92 | 18 | (3)Tomas Smid [CZE] d. Arguello | 6-2 6-2 | | | | | | | | | |
16‑Sep‑1985 | Geneva | Clay | R16 | 92 | 22 | Arguello d. (5)Aaron Krickstein [USA] | 6-4 6-4 | | | | | | | | | |
16‑Sep‑1985 | Geneva | Clay | R32 | 92 | 106 | Arguello d. Jose Lopez Maeso [ESP] | 6-2 6-1 | | | | | | | | | |
9‑Sep‑1985 | Palermo | Clay | QF | 82 | 9 | (1)Joakim Nystrom [SWE] d. (7)Arguello | 6-2 6-3 | | | | | | | | | |
9‑Sep‑1985 | Palermo | Clay | R16 | 82 | 88 | (7)Arguello d. (Q)Bruno Oresar [CRO] | 6-2 5-7 6-2 | | | | | | | | | |
9‑Sep‑1985 | Palermo | Clay | R32 | 82 | 135 | (7)Arguello d. Alessandro De Minicis [ITA] | 6-3 6-3 | | | | | | | | | |
27‑Aug‑1985 | US Open | Hard | R128 | 83 | 25 | Jimmy Arias [USA] d. Arguello | 6-1 6-3 6-1 | | | | | | | | | |
22‑Jul‑1985 | Indianapolis | Clay | R64 | 85 | 96 | Jimmy Brown [USA] d. Arguello | 6-1 6-0 | | | | | | | | | |
15‑Jul‑1985 | Washington | Clay | R64 | 82 | 63 | (16)Lawson Duncan [USA] d. Arguello | 6-1 6-2 | | | | | | | | | |
8‑Jul‑1985 | Boston | Clay | R16 | 87 | 246 | (Q)Bruno Oresar [CRO] d. Arguello | 6-3 6-2 | | | | | | | | | |
8‑Jul‑1985 | Boston | Clay | R32 | 87 | 47 | Arguello d. (14)Hans Schwaier [GER] | 6-1 7-5 | | | | | | | | | |
8‑Jul‑1985 | Boston | Clay | R64 | 87 | 57 | Arguello d. Balazs Taroczy [HUN] | 6-4 6-4 | | | | | | | | | |
27‑May‑1985 | Roland Garros | Clay | R64 | 88 | 16 | (13)Tomas Smid [CZE] d. Arguello | 6-4 3-6 6-1 6-4 | | | | | | | | | |
27‑May‑1985 | Roland Garros | Clay | R128 | 88 | 56 | Arguello d. Marty Davis [USA] | 6-4 6-4 7-6 | | | | | | | | | |
13‑May‑1985 | Rome | Clay | R64 | 87 | 59 | (16)Guillermo Vilas [ARG] d. Arguello | 7-5 6-4 | | | | | | | | | |
29‑Apr‑1985 | Hamburg | Clay | R16 | 115 | 32 | (11)Jose Luis Clerc [ARG] d. (Q)Arguello | 6-2 6-3 | | | | | | | | | |
29‑Apr‑1985 | Hamburg | Clay | R32 | 115 | 6 | (Q)Arguello d. (3)Anders Jarryd [SWE] | 7-6 6-2 | | | | | | | | | |
29‑Apr‑1985 | Hamburg | Clay | R64 | 115 | 66 | (Q)Arguello d. Alejandro Ganzabal [ARG] | 4-6 6-3 7-6 | | | | | | | | | |
22‑Apr‑1985 | Marbella | Clay | R32 | 113 | 71 | Pablo Arraya [PER] d. Arguello | 6-4 6-4 | | | | | | | | | |
15‑Apr‑1985 | Bari | Clay | QF | 106 | 148 | (Q)Jose Lopez Maeso [ESP] d. Arguello | 6-4 6-0 | | | | | | | | | |
15‑Apr‑1985 | Bari | Clay | R16 | 106 | 67 | Arguello d. (6)Pablo Arraya [PER] | 7-5 6-3 | | | | | | | | | |
15‑Apr‑1985 | Bari | Clay | R32 | 106 | 204 | Arguello d. (LL)Josef Cihak [CZE] | 6-3 6-0 | | | | | | | | | |
8‑Apr‑1985 | Nice | Clay | QF | 93 | 52 | (4)Diego Perez [URU] d. (Q)Arguello | 6-3 6-0 | | | | | | | | | |
8‑Apr‑1985 | Nice | Clay | R16 | 93 | 87 | (Q)Arguello d. John Frawley [AUS] | 6-4 6-3 | | | | | | | | | |
8‑Apr‑1985 | Nice | Clay | R32 | 93 | 78 | (Q)Arguello d. Horacio De La Pena [ARG] | 7-5 6-1 | | | | | | | | | |
1‑Apr‑1985 | Monte Carlo | Clay | R32 | 103 | 42 | (16)Victor Pecci [PAR] d. (Q)Arguello | 4-6 7-6 6-3 | | | | | | | | | |
1‑Apr‑1985 | Monte Carlo | Clay | R64 | 103 | 69 | (Q)Arguello d. Hans Gildemeister [CHI] | 6-4 6-3 | | | | | | | | | |
25‑Mar‑1985 | Tunis CH | Clay | R32 | 97 | 160 | Juan Avendano [ESP] d. Arguello | 6-4 6-2 | | | | | | | | | |
8‑Mar‑1985 | Davis Cup WG R1: ARG vs ECU | Clay | RR | 115 | 155 | Raul Antonio Viver [ECU] d. Arguello | 6-1 4-6 6-3 | | | | | | | | | |
25‑Feb‑1985 | Buenos Aires | Clay | QF | 122 | 50 | (1)Diego Perez [URU] d. (8)Arguello | 6-3 6-3 | | | | | | | | | |
25‑Feb‑1985 | Buenos Aires | Clay | R16 | 122 | 378 | (8)Arguello d. (Q)Gustavo Tiberti [ARG] | 6-0 7-5 | | | | | | | | | |
25‑Feb‑1985 | Buenos Aires | Clay | R32 | 122 | 211 | (8)Arguello d. Eleuterio Martins [BRA] | 6-3 6-2 | | | | | | | | | |
14‑Jan‑1985 | Guaruja CH | Clay | R16 | 123 | 342 | (Q)Roberto Saad [ARG] d. (3)Arguello | 7-6 5-7 6-4 | | | | | | | | | |
14‑Jan‑1985 | Guaruja CH | Clay | R32 | 123 | 316 | (3)Arguello d. Alexandre Hocevar [BRA] | 4-6 6-4 6-3 | | | | | | | | | |