PORSCHE RACING HISTORYJohn Centeno (CDN)
1986
22 March 1986 - Sebring 12 Hours - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | GTU | Rainer Brezinka (CDN)/Rudy Bartling (CDN)/John Centeno (CDN) | R & H Racing (CDN) | 21st | 6th | 60th | 197 laps |
8 June 1986 - Mid-Ohio 250 km IMSA GTO - IMSA - International Motor Sport Association
| No. | Car | # | Class | Drivers | Entrant | Pos | Class | Grid | Notes |
| 39 | Porsche 911 | GTU | Rainer Brezinka (CDN)/John Centeno (CDN) | R & H Racing (CDN) | 14th | 6th | 22nd | 60 laps |