Not so sure about kicking up hill when winning the toss. Golden rule always take advantage and have the wind behind you. The number of times I have seen a team kick into the wind first half
only to see the wind drop in the second half then they a puggled. No boxer goes into the ring and lets  his opponent do all the hitting for the first rounds thinking that all will be well later on,although
Mohamid Ali did just that and won in one fight that way