The kayak cross event is split into two phases - qualification time trials and knockout phase where 4 paddlers race each other head-to-head. Top 16 paddlers from the qualification advance to the quarterfinal. There are 4 quarterfinal heats with the top 2 paddlers advancing from each to the semifinal. Same rules apply in the two semifinals and the medals are then decided in the final run.
Paddlers start the cross run by sliding off the starting platform several meters above the water. Then they must navigate the downstream and upstream gates. Unlike in classic slalom, paddlers are allowed to touch the gates and even intentionally move them with their paddle, but not with a free hand. There is also a designated zone where paddlers must perform an Eskimo roll.
Athletes can be penalized in three ways in each round, by receiving a fault (FLT) or by being ranked as lower (RAL). Faults are incurred for false starts, missing gates or failing to correctly perform the Eskimo roll. Athletes are ranked as lower (RAL) if they breach the safety requirements of the competition, such as by holding back another athlete with their hands or paddle, deliberately paddling over another athlete's boat, or by making dangerous contact with another athlete's head or body - all other non-dangerous contact is allowed. In each round athletes are ranked first by the order in which they cross the finish line, with those incurring penalties ranked in the following order: FLT, RAL, DNF, DNS.
The final classification of athletes is determined in the following manner: Athletes eliminated at any phase of the competition will be given their rank based on the comparison of the qualification times of athletes eliminated at the same phase. All 3rd ranked athletes will be ranked above all 4th ranked athletes. The final rank of athletes who did not progress to the heats is determined by their qualification results.[1]