| Year | Class/Event | Donald Martinborough | Guillermo Cappelletti | |
|---|---|---|---|---|
| 1982 | Open Sunfish Worlds | 14 | 38 | |
| 1983 | Open Sunfish Worlds | 1 | 28 | |
| 1989 | Open Sunfish Worlds | 5 | 24 | |
| 1999 | Sunfish PanAm Games | Winnipeg (CAN) | 6 | 9 |
| 2002 | Open Sunfish Worlds | 7 | 20 | |
| 2004 | Open Sunfish Worlds | 7 | 29 | |
| 2005 | Open Sunfish Worlds | 9 | 15 | |
| 2006 | Open Sunfish Worlds | 12 | 34 | |
| 2007 | Open Sunfish Worlds | 22 | 23 | |
| 2008 | Open Sunfish Worlds | 17 | 34 | |
| 2009 | Open Sunfish Worlds | 13 | 20 | |
| 2018 | Open Sunfish Worlds | 34 | 32 | |
| 11 | 1 | |||