OK here is an even better one ...

Mooney Valley Race 4: Best Fluc is showing at least $4.40 at centrebet for Arcadia

Lay the horse at $3.90 for $208 and at $4.00 for $100 and at $4.10 for $300.

Total Layed = $608 for a liability of $2441.20
Total Backed = $555 to cover costs.

Difference = $53
Commission at 5% = $30.40 so at worst you maket $23