Sam Hird was sent off as Chesterfield lost their final game of the season 2-0 at Bradford City.
The Bantams took a first half lead through a fine volley from Lee Evans.
Hird was given his marching orders for pulling down Jamie Proctor who was in on goal.
And Proctor then set up City’s second, Billy Clarke slotting home from six yards.
Chesterfield finished 18th in League One, seven points clear of relegation.