Scunthorpe were crowned champions despite defeat to Blackpool, who kept alive their automatic promotion hopes.
The Seasiders went ahead when a lovely back-heel from Wes Hoolahan set Claus Jorgensen clear and he beat Joe Murphy.
Keigan Parker doubled the lead from an acute angle before Blackpool's Chris Brandon was sent off for a reckless tackle on Jermaine Beckford.
Scunthorpe halved the arrears through Billy Sharp's low 12-yard drive before half-time but Shaun Barker headed home.
Blackpool: Hart, Barker, Jackson, Evatt, Williams, Brandon, Southern, Jorgensen (Fox 85), Hoolahan, Morrell (Gillett 64), Parker (Forbes 85).
Subs Not Used: Vernon, Gorkss.
Sent Off: Brandon (38).
Booked: Morrell, Gillett.
Goals: Jorgensen 8, Parker 26, Barker 56.
Scunthorpe: Murphy, Byrne, Foster, Butler, Williams, Taylor (Goodwin 63), Sparrow, Baraclough, Hurst (Morris 63), Beckford, Sharp.
Subs Not Used: Lillis, Hinds, Crosby.
Booked: Sharp, Sparrow, Goodwin.
Goals: Sharp 41.
Ref: J Moss (West Yorkshire).