Colchester were the biggest beneficiaries of a League One weekend where many of the big guns failed to win.
Andy Bond’s late winner handed John Ward’s team a 1-0 victory at Walsall and moved them into fifth spot in the table, the highest-placed side to collect three points.
Sheffield Wednesday continue to lead the way despite falling to a 1-0 defeat at Brentford and are the 3/1 favourites to win League One this season.
Brentford may still have avoiding relegation as their chief aim as Charlie MacDonald’s goal was enough to lift them off the foot of the table.
Managerless Southampton are out to 7/2 to be crowned champions as they remain six points off top spot after a 2-0 home defeat against Rochdale.
Peterborough, who are 7/1 to finish the season at the head of League One, have slipped to fourth in the standings after losing 1-0 at Tranmere, with Arnoud Mendy scoring his first goal in English football.
They were leapfrogged by Carlisle and Oldham, who were both held at home by Swindon and Bristol Rovers respectively.
Elsewhere, Lee Hughes struck his first goal of the season as Notts County thrashed Yeovil 4-0 and the frontman is 25/1 to end the season as the leading scorer in League One.
MK Dons are the other team to be positioned in the play-off places at this early stage of the campaign after Lewis Guy came off the bench to score the solitary goal in a success over Hartlepool.
The Dons also had to end the game with ten men after captain Dean Lewington was sent off.
Charlton lost 1-0 at Exeter and are 16/1 to win League One. See the entire winners market.