The incident took place midway through the first race of day two's action on the Great Sound, with both Japan and the US unable to sail again for the rest of the day due to the damage caused to their F50s.
Incredibly, things actually got even worse for the United States and helm Jimmy Spithill - appearing at his first SailGP event since signing for the team - as shortly after the collision its boat capsized in the strong winds on the Great Sound.
The F50 did eventually right itself, but had to be removed from the course before the second race - involving only six of the eight teams - could begin.
Japan, meanwhile, suffered its own boat difficulties as the hull had to be drained of water to ensure the F50 stayed afloat.
With both Japan and the United States missing from the final fleet race, they were not afforded the opportunity to battle for a place in the three-team Final.
Australia - who won four of five fleet races over the weekend - Great Britain and France qualified for the winner-takes-all clash, with Ben Ainslie's team putting in a fine performance to see the Brits crowned Bermuda Sail Grand Prix champion.