An extraordinary finish saw the Spireites finish their league season with a 3-2 win at Doncaster Rovers and give themselves a chance at the title.Trailing 1-0 at the break, Ritchie Humphreys drew the visitors level before Donny retook the lead going into the final minute.
In the 89th minute the Spireites were awarded a penalty, taken and scored by Jake Orrell, and with 40 seconds of the added-on minute played, a flick on was turned in by Jake Beesley to crown a stunning fightback.
The result, coupled with Notts County's win over Gateshead, means that the Spireites remain a point clear at the top of the Final Third Development League East division, though with Chesterfield having now completed their program, County can pinch the league title if they win their final match, again against Gateshead.
Goalscorer and coaching the reserves team, Ritchie Humphreys, reflected on the match: "We were sloppy in the first half and gave the ball away too many times, seeing us behind at half time.
"The second half was much better and we created half chances throughout to give ourselves the chance to get back into the game.
"The last couple of minutes were incredible and it was brilliant to end the game and the season in such a way, and you never know what will happen in the final Notts County game and whether we may still sneak the title."