Portsmouth does not lose by more than 1 goal in 45 out of 50 last matches.
13 out of 14 last matches involving Leyton Orient did not end in a draw.
Leyton Orient scores under 2 goals in 15 out of 18 last matches.
9 out of last 10 home matches involving Portsmouth did not end in a draw.
Portsmouth does not lose at home by more than 1 goal in 17 matches straight.
Portsmouth wins at home by more than 1 goal in 5 out of 10 last matches.
In 7 out of last 9 home matches, Portsmouth scores in the first half.