From SpottingWorld, the Hub for the SpottingWorld network...
The 18 foot Dinghy is a bit of a mystery. No pictures, no drawings, just results. It was used in the 1920 Olympics as a double handed Olympic class. Only one team was present at the starting line and won, not by surprise, the gold. More information is not found so far. Three races were scheduled, with final places decided by total points. Point-for-place scoring for each race. Some sources point out that only one race was sailed and the gold medalist scored: did not finish!
Also the results are somewhat mysterious. Most sources give the only participant the credits for the gold medal. Others rank them as AC?