If you boat is upside down, you will not be sailing fast. If there is a race, you probably won't win unless everybody else turns over. Here are a number of ways you can turn over.
Hiking strap breaks.
Vang on as you go around windward mark.
Stick the end of the boom in the water.
Dead downwind in big gust..
Roll tack with too much roll.
Hiked out in big header.
Result of collisions downwind.
Gybe and slow crossing.
Gybe and hook sheet on transom.
Maybe we will talk about the DEARTH ROLL Friday.