The Tyrell and Rousso races will be held this Saturday, 23 December. The first race (the Tyrell) is a handicapped start where the faster boats must chase down the slower boats. There will be a normal 5-minute countdown start sequence, at which time those will zero handicap (the slowest boats) will start. After that, faster boats will leave when the race time reaches their handicap over the next 5-10 minutes. The handicaps will be announced during the briefing on Saturday. The first boat over the finish is the winner. The second race (the Rousso) is a scratch race, with everyone starting on the same start line with a normal 5-minute countdown sequence. The first 4.7, radial and standard across the line are the "finalists" and the overall winner will be determined by applying a yardstick across the three separate classes. These are once-a-year prestigious events for DBSC that come with perpetual trophies.