50 meters, some forest, IC to kill.
Scenario 1: Gai can go up to 6 gates, Kakashi has no Kamui.
Scenario 2: Gai can go up to 7 gates, Kakashi can only Kamui himself.
Scenario 3: Gai is in base, Kakashi only has 3T sharingan.
Scenario 4: Gai is in base, Kakashi has no sharingan ( but he has 2...