any help on "race brain" in an Arab. After 28 miles he still had it!

[guest@endurance.net]

Ethel Cain ecain@domans.com
Any suggestions as to how to get my Arab's attention during his race brain
mode.  Just wants to gallop the whole race even after 28 miles.  It is a
fight.  What do people suggest to get his attention!  Also, has anyone had
any experience with calming products on the market. Using a mild curb bit
on him.  When he is not competing in the endurance rides he is great.  An
exceptionally fast walker though.
Thanks for any help!!