KISSIMMEE, Fla. — Even though he won 10 games for the marlins last season, Tom Koehler isn't considering himself a lock for Miami's rotation. Johnny Gomes drove in two runs and Kelly Johnson went 2 for 2, leading the Atlanta Braves over the Marlins 6-3 Thursday. Koehler allowed four runs and walked three in four innings in his second start of the spring.