Soon afterwards,he had come up with the fastest three.这句话有问题

Soon afterwards,he had come up with the fastest three.这句话有问题吗,不是top
context：
Last weekend,the race for these children was held at a special swimming pool in Los Angeles.Tricycles were lined up on the floor of the pool seven feet under water.No sooner had the game begun than the children dived into the water.They found their tricycles and started off soon.Many pedaled their tricycles,but most of them pushed or dragged them.A child pulling his tricycle dropped it,which hindered two other competitors.Instead of stopping,they continued to move forward out of the way.Another child,who temporarily dropped behind others,was pedaling hard.Soon afterwards,he had come up with the fastest three.The boy won the race at the last few second.He rose to surface drgging up his tricycle and smiled.Of course,all the children had completed their race.Even though they were not champion in this race,some of them covered the whole length of the swimming pool without coming up for breath even once.Whether they will ever become the future Olympic champions,only time will tell.