OLBG compared pre-season odds predictions with where teams actually finished in the league to calculate who over and under-performed.
Stags had been predicted to finish third but could only manage eighth.
The findings revealed that League Two play-off winning hopefuls Carlisle ended League Two 19 places above where they were expected to finish, making them the league’s biggest overachievers.
By contrast, in finishing 20th, Colchester were 18 places below pre-season predictions and take the crowd as the league’s biggest underachievers.
Here’s how every team compared against their pre-season expectations with the bookies.
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Mansfield Town finished five places below their pre-season predicted finish, according to research by OLBG. Photo: Chris Holloway
. Stockport County (+12)
Pre-season prediction: 16th Final position: 4th Photo: Naomi Baker
. Carlisle United (+19)
Pre-season prediction: 24th Final position: 5th Photo: Stu Forster
. Bradford City (+5)
Pre-season prediction: 11th Final position: 6th Photo: Chris Holloway
. Mansfield Town (-5)
Pre-season prediction: 3rd Final position: 8th Photo: Chris Holloway
3. Northampton Town (+3)
Pre-season prediction: 6th Final position: 3rd Photo: Pete Norton
4. Stockport County (+12)
Pre-season prediction: 16th Final position: 4th Photo: Naomi Baker