The oval race track's inner circumference is 500m and width is 30m with a small incline. To be more specific, with the straight at 87m and the corner at 163m, there is a 50/1000 (approximately 2.86 degree) incline to add speed and excitement to the race. You will also notice the multiple starting lines at 10 meter intervals. The distance between one of these lines and the starting line determines the rider's handicap. Handicap Race To allow all riders to compete on an equal basis and make race results less predictable for the betting audience, the starting line for fast riders is towards the front and the faster riders towards the back and the race starts from the 10m handicap line. If there are two riders that will be starting from the same handicap lines, the rider with the lower rider number will be placed in the inner part of the circuit. Non-handicap Race (Open Race) All eight riders start from the same starting line with no handicap if all are capable of the same speed and performance level. Although as a common rule, these races are to start from the 0m starting line, there are standard races that start from the 10m handicap line. Riders are ranked S, A, or B rank (with S as the highest rank), based on half year race results. As a rider's rank becomes higher, he or she is able to enter bigger races with larger prizes. If a rider intentionally interferes in any way with another rider such as deliberately cross in front, jostle, or come in physical contact in anyway, the rider will be disqualified for violation of race rules. It is a general rule that overtaking riders must pass on the outside unless there is enough room to safely pass on the inside. If there is evidence of foul play or a rider has fallen from his or her motorcycle, a penalty will be imposed. If a fair and safe race cannot carry on due to an accident where a rider falls from his or her motorcycle, stops in an opponent's lane, or oil leaks onto the track, a referee may cancel the race. In this case, all tickets sold at the race will be refunded. The following flags are used by the referee to assure a smooth and safe race. Red Flag Indicates that the race will be canceled due to an accident. If raised anytime after the race, it is either to show that a violation occurred or to signal to the riders that the race has finished. Yellow Flag Raised when no violations occur after preparations or the race. Blue Flag Waved in the shape of the number eight to point out to the rider that it's their last lap. Checkered Flag Waved as the riders finish. Races are carried out in a tournament format where riders are to move ahead through the preliminaries, semifinals, and onto the championships. Semifinalists are chosen by scores based on their place and time. On the last day, there is a champion race between the riders that finish first and second in the semifinals, a special selection race for the riders that finish third and fourth, and a selection race for the riders that finished fifth and sixth.