| | Event type
12-Foot Dinghy, Open
| Date | 7 July – 4 September 1920 | |
|---|---|---|
| Status | Olympic | |
| Location | Oostende / Buiten-IJ, Amsterdam | |
| Participants | 5 from 1 countries | |
| Format | Three races, with final places decided by total points. Point-for-place scoring for each race. | |
The 12-foot dinghy class had to be completed at a later date, after a controversy involving the course. The two crews were from the Netherlands. So, acceding to a special request by the Belgian Organizing Committee, the final two races were moved to the Netherlands and held on the Buiten-IJ, near Amsterdam, on 4 September.
| Pos | Competitors | NOC | Points | Race #1 | Race #2 | Race #2 Re-run | Race #3 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Beatrijs III |  NED | 4 | 1-04:56 (2) | 40:36 ( | 2-14:10 (1) | 1-14:28 (1) | Gold | |||||
| Johan Hin • Cornelis Hin • Frans Hin | |||||||||||||
| 2 | Boreas | NED | 5 | 59:53 (1) | 42:16 ( | 2-25:48 (2) | – ( | Silver | |||||
| Arnoud van der Biesen • Petrus Beukers | |||||||||||||