Chesterfield have won promotion to League Two after defeating Boreham Wood 3-0 in the National League.
Jamie Grimes scored twice and Liam Mandeville also struck to confirm Chesterfied's promotion. The Spireites are 21 points ahead of second-place Barnet.
Manager Paul Cook said: “I am delighted, I really am. I am delighted for the supporters.
"When I came back two-and-a-bit years ago, I didn't realise how tough a league it was.
"It has been amazing. I can't thank the players, the staff, enough. It has been great. It has been such a team effort.
"My staff have been outstanding all year but the players take all the plaudits tonight."