1) crap sleep on the plane Wednesday night (even if first class, if economy forget it)
2) Thursday you won't be able to go to sleep -or- go to sleep on an "afternoon" nap on your body and wake up wide awake around 11pm
3) friday morning you should be quite exhausted after 2 nights of lousy sleep.
4) Friday night you want to rest well to wake up I am assuming 3am Saturday to race ( going to be like starting the race 9pm Boson time)

Wouldn't expect much more performance than just completing.

Good Luck, just keeping it real on the advice.

(Edited to cut out my first comment about waking time. Wasn’t thinking straight and guess why? You got it, crap sleep due jet lag)