It leaves them seven points clear of chasers Bradford City, Carlisle United and Barrow.
Town are now given a 60 per cent chance of promotion and a 37 per cent chance of being in the play-offs.
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1. Leyton Orient - 93pts (+34)
Win the league: 61%
Promoted: 93% Photo: Pete Norton
2. Stevenage - 86pts (+25)
Play-off chances: 26%
Promotion chances: 73%
Win the league: 21% Photo: David Price
3. Northampton Town - 82pts (+25)
Play-off chances: 37%
Promotion chances: 60%
Win the league: 10% Photo: Pete Norton
4. Salford City - 75pts (+18)
Play-off chances: 44%
Promotion chances: 34% Photo: Charlotte Tattersall