Best price: Portsmouth pay $2.48, Stoke City pay $3.10, a draw pays $3.35 (the best of 40 bookies we checked). $100 on Portsmouth returns $248.
Fair chance (our read of the prices, with the bookies' cut taken out): Portsmouth about 4 in 10, a draw about 3 in 10, Stoke City about 3 in 10.
How much the bookies keep: about $7.19 of every $100 bet on this game.
Since betting opened: the price has barely moved.