ok so point a to point b... obito said "he's fast" when he was rescuin naruto, and that was just him running. so lets say him and gai are running and then he throws a kunai that passes gai and lands at point b he teleports there and he wins the race... who's faster... i'd say the guy who got there first...
minato
maybe tobirama
naruto
4th raikage
gai gates
oh snap wait i forgot gaara