Grimsby Town beat Forest Green Rovers to retrun to Football League
Two quickfire Omar Bogle goals just before half-time gave Grimsby control.
Forest Green fought back after the break and Keanu Marsh-Brown's superb goal reduced their deficit after Jon Parkin had missed from six yards.
But Grimsby - playing in the play-offs for a fourth consecutive year - struck a late third through Nathan Arnold.
The promoted Mariners return to Wembley on 22 May for the FA Trophy final against FC Halifax.