17‑Nov‑1986 | Houston | Carpet | SF | 86 | 33 | (6)Slobodan Zivojinovic [YUG] d. Rostagno | 6-4 6-4 | | | | | | | | | |
17‑Nov‑1986 | Houston | Carpet | QF | 86 | 107 | Rostagno d. (WC)Bill Scanlon [USA] | 6-2 6-3 | | | | | | | | | |
17‑Nov‑1986 | Houston | Carpet | R16 | 86 | 168 | Rostagno d. (Q)Leif Shiras [USA] | 6-2 6-4 | | | | | | | | | |
17‑Nov‑1986 | Houston | Carpet | R32 | 86 | 66 | Rostagno d. Mel Purcell [USA] | 6-4 5-7 6-1 | | | | | | | | | |
3‑Nov‑1986 | Stockholm | Hard | R32 | 92 | 82 | Gary Donnelly [USA] d. Rostagno | 7-5 7-5 | | | | | | | | | |
3‑Nov‑1986 | Stockholm | Hard | R64 | 92 | 52 | Rostagno d. Peter Lundgren [SWE] | 6-4 6-2 | | | | | | | | | |
27‑Oct‑1986 | Paris Indoor | Carpet | R32 | 86 | 33 | Guy Forget [FRA] d. (LL)Rostagno | 6-3 6-2 | | | | | | | | | |
20‑Oct‑1986 | Tokyo Indoor | Carpet | R32 | 88 | 115 | (Q)Bill Scanlon [USA] d. (Q)Rostagno | 6-1 6-1 | | | | | | | | | |
13‑Oct‑1986 | Tokyo Outdoor | Hard | R16 | 97 | 112 | Johan Carlsson [SWE] d. (16)Rostagno | 7-6 7-6 | | | | | | | | | |
13‑Oct‑1986 | Tokyo Outdoor | Hard | R32 | 97 | 199 | (16)Rostagno d. Ivo Werner [GER] | 6-7 6-2 6-3 | | | | | | | | | |
13‑Oct‑1986 | Tokyo Outdoor | Hard | R64 | 97 | 228 | (16)Rostagno d. Marc Flur [USA] | 4-6 6-4 6-4 | | | | | | | | | |
15‑Sep‑1986 | Los Angeles | Hard | QF | 135 | 4 | (1)Stefan Edberg [SWE] d. (Q)Rostagno | 6-0 7-5 | | | | | | | | | |
15‑Sep‑1986 | Los Angeles | Hard | R16 | 135 | 33 | (Q)Rostagno d. (8)Aaron Krickstein [USA] | 6-1 6-3 | | | | | | | | | |
15‑Sep‑1986 | Los Angeles | Hard | R32 | 135 | 67 | (Q)Rostagno d. Scott Davis [USA] | 6-3 6-3 | | | | | | | | | |
26‑Aug‑1986 | US Open | Hard | R128 | 131 | 72 | Marty Davis [USA] d. (Q)Rostagno | 6-3 7-6 6-3 | | | | | | | | | |
18‑Aug‑1986 | Cincinnati | Hard | R64 | 135 | 7 | (4)Joakim Nystrom [SWE] d. (Q)Rostagno | 6-2 6-2 | | | | | | | | | |
21‑Jul‑1986 | Boston | Clay | R64 | 157 | 120 | Johan Carlsson [SWE] d. Rostagno | 6-4 7-6 | | | | | | | | | |
14‑Jul‑1986 | Schenectady CH | Hard | QF | 157 | 310 | (WC)Andre Agassi [USA] d. Rostagno | 7-6 6-7 6-4 | | | | | | | | | |
14‑Jul‑1986 | Schenectady CH | Hard | R16 | 157 | 121 | Rostagno d. (8)Vincent Van Patten [USA] | 7-6 7-6 | | | | | | | | | |
14‑Jul‑1986 | Schenectady CH | Hard | R32 | 157 | 402 | Rostagno d. (Q)Norm Schellenger [USA] | 6-0 6-3 | | | | | | | | | |
7‑Jul‑1986 | Bordeaux | Clay | R32 | 137 | 166 | (LL)Bruce Derlin [NZL] d. Rostagno | 6-4 3-6 6-0 | | | | | | | | | |
30‑Jun‑1986 | Chartres CH | Clay | R32 | 133 | 244 | (LL)Stephan Medem [SUI] d. (3)Rostagno | 6-4 2-6 7-5 | | | | | | | | | |
16‑Jun‑1986 | Bristol | Grass | R64 | 131 | 122 | Darren Cahill [AUS] d. Rostagno | 7-6 5-7 6-4 | | | | | | | | | |
24‑Mar‑1986 | San Luis Potosi CH | Clay | F | 418 | 265 | (Q)Rostagno d. (8)Charles Bud Cox [USA] | 6-4 6-1 | | | | | | | | | |
24‑Mar‑1986 | San Luis Potosi CH | Clay | SF | 418 | 480 | (Q)Rostagno d. (WC)Jorge Lozano [MEX] | 6-7 6-1 6-4 | | | | | | | | | |
24‑Mar‑1986 | San Luis Potosi CH | Clay | QF | 418 | 415 | (Q)Rostagno d. Karl Richter [USA] | 7-6 6-7 7-5 | | | | | | | | | |
24‑Mar‑1986 | San Luis Potosi CH | Clay | R16 | 418 | 217 | (Q)Rostagno d. (3)Mark Wooldridge [USA] | 4-6 6-4 7-6 | | | | | | | | | |
24‑Mar‑1986 | San Luis Potosi CH | Clay | R32 | 418 | 377 | (Q)Rostagno d. Laird Dunlop [CAN] | 6-3 6-3 | | | | | | | | | |