Dewsbury’s hopes of playing in the inaugural Kingstone Press Championship Shield Grand Final were ended by a 34-18 defeat to London Broncos.
The sides went into half-time locked at 16-16 and when Shane Grady hammered over a 51st minute penalty, there was hope that the Rams were on course for victory.
However, the game dramatically swung as Rhys Williams picked up a dropped ball, despite appearing to come from an offside position, and raced over for a crucial try, which William Barthau converted.
Daniel Harrison then scampered to the line following a scrum and Barthau converted.
Dalton Grant had a try harshly ruled out for a forward pass as Dewsbury looked to hit back and London rubbed salt into the wounds when Harrison pounced for a last minute try, which Barthau improved.
Dewsbury had taken a first half lead in some style when winger Dale Morton intercepted a pass on his own line and raced the length of the field.
Morton was tackled inches short of scoring a spectacular try but flipped the ball inside for Anthony Thackeray to touch down. Tom Hemingway converted.
Ben Hellewell replied with a try for London, which Barthau improved.
Dewsbury then appeared to have taken control as Morton dived over for a spectacular try and Etu Uaisele was on the end of a brilliant passing move to score soon after, with Grady converting the latter.
Dewsbury’s 10-point lead was whittled away as Joe Keyes and Iliess Macani scored to bring London level and the Broncos took control in the second half to book their final place.
Dewsbury Rams Fieldhouse; Morton, Pryce, Uaisele, Grant; Wildie, Thackeray; Hepworth, Hemingway, Aizue, Grady, L Adamson, Farrell. Subs: Conroy, Crookes, Jackson, Nash.
London Broncos: A Walker; Williams, Hellewell, Kear, Macani; Barthau, Keyes; Riley, Cunningham, Diollapi, Harrison, Garside, Davis. Subs: Henderson, Thackray, Everett, J Walker.
Referee: Jonathan Roberts.