Horse Bet Rule- Need help with this one

[chano]

I made a bet on that Eskenderya or Looking at Lucky will win the 2010 Kentucky Derby.

I bet Yes +105

I just found out that Eskenderya has been scratched.
What will happen to my bet? will it get graded as no action or will it stand?
I realize that these are futures and fall under All In betting/ Fixed oddswagering category.

keep in mind that there was the option to Bet No

what would happen then ?

any thoughts?