On the stroke of half-time Davis had the chance to extend the lead once again, but his penalty bounced back off the uprights and the half ended with Exeter leading 10-9.
It is too late for tennis to do the same, but it could initiate rule changes that would extend the time the ball is in play and reward strategy and stroke play over raw power.
Korkidas pulled a try back for Castleford but Clint Greenshields touched down on the stroke of half-time and Bosc landed a penalty on 50 minutes to extend his side's lead to 32-18.