Best opening price: Celta Vigo paid $2.67, Real Betis paid $3.10, a draw paid $3.56 (the best of 21 bookies). Prices change before kickoff.
Fair chance at the open (our read of the prices, with the bookies' cut taken out): Celta Vigo about 4 in 10, a draw about 3 in 10, Real Betis about 3 in 10.
How much the bookies keep: about $7.07 of every $100 bet on this game.
Prices from when betting opened on Sun 11 Oct