Losing 5-0, Doncaster's Brendan Carlyle avoided a tackle and touched down near enough to the posts for Rocky Turner to add the goal and take the lead six minutes from time.
In the final minute Turner snapped up a dropped pass and raced 30 yards unchallenged for the final score.
Workington Town secured the Stones Bitter Second Division championship with a 52-8 win at Bramley that included nine tries. Although Bramley opened the scoring Workington were never in any trouble with the scrum-half Dean Marwood leading the way with 16 points.
St John Ellis beat Castleford's 30- year-old try-scoring record in their 38-24 victory at Wakefield Trinity with his 36th try of the season.
PREMIERSHIP DRAW Stones Bitter Championship: Wigan v St Helens; Bradford v Leeds; Warrington v Sheffield; Castleford v Halifax. Second Division Premiership: Workington v Rochdale; Doncaster v Dewsbury; London Crusaders v Keighley; Batley v Huddersfield (Matches to be played 8 May).Reuse content