I have a 1000/333 on S. Zhang -300 in this tennis match.
Opened at +150/-169. Pinny currently has +488 / -625.
My book which I placed the original bet has the other girl (Z. Kucova) at +550 now, probably thanks to my action.
Both bets would be +EV on Pinny's price.
Do I arb or let it ride?