Not quite, 6.5 meters would be about a 1:45 marathon time. Currently the best marathoners can do 2:04 which is about 5.6 meters per second. For a half marathon

Not quite, 6.5 meters would be about a 1:45 marathon time. Currently the best marathoners can do 2:04 which is about 5.6 meters per second. For a half marathon world record pace is just over 6 meters per second.