Yamato gives the flap a quick test, then gives Cassian a thumbs up to indicate that it's working.

Then he accelerates out of the garage, rejoining the race for the second lap as the other ships also accelerate out of their own pit stops.

He's still in fifth place, with a significant gap between him and the fourth place ship, but over the first leg of the lap, he works on closing the distance.

By the time they're at the first obstacle section, he's practically alongside them, and as that first obstacle section finishes and they start their ascent up towards space, he overtakes them with a burst of speed.

Fourth place, he mentally notes, readjusting his mental map of the race and its competitors.