The O’s have scored in all 15 previous home league games against Posh.
Peterborough lost five of their last seven away league games in the regular League One campaign (W2).
32% of the teams that finished third in League One have won promotion via the play-offs, the highest proportion.
Peterborough have taken part in the Football League play-offs on three occasions, winning promotion each time (1992, 2000, 2011).
Peterborough have dropped a league-high 17 points from leading positions on the road this term.
Britt Assombalonga has scored three goals in his last three appearances for Peterborough. Indeed, only Sam Baldock (12) has scored more goals in away games in League One this season than the Posh hitman (11).
The O’s recovered 22 points from losing positions in the regular League One season, only Rotherham won more (23), while Orient also came from behind to draw the first leg of this tie 1-1.
Despite winning 16 points more at home this season, Peterborough scored three goals more on the road than at London Road (inc. play-offs).