Dinnington ran ten tries past next-to-bottom Keighley to keep their promotion hopes on track.
But with Ilkley putting 92 points past bottom of the table Acklam, they have lost their points advantage.
It now seems likely that Dinnington’s home game with Ilkley on 29th March will determine who finishes on top.
Dinnington began the game with the advantage of the elements and quickly had Keighley on the back foot.
With only two minutes played, Tyle Stimpson broke through some weak tackling to put Will Marshall in for the opening try, the 14th consecutive game in which he has scored, and Jonny West added the conversion.
Five minutes later, Dinnington went further ahead as they moved the ball along their back line and put West over in the corner.
Dinnington were dominant at this point and were unlucky not to score again when Matthew Starr was adjudged to have been held up over the line.
Keighley then won a penalty at the resultant scrum and cleared to take the pressure off.
Dinnington then seemed to go off the boil and Keighley were given a chance to cut the lead but chose to kick for touch, instead of goal, allowing Dinnington to clear.
It took Dinnington a while before they got back into the game, but when they did they scored again.
Ryan Donnelly broke from the back of ruck only to be stopped short but Chris Reynolds was up quickly and dove over from close in.
Keighley then staged a mini revival aided by the number of penalties Dinnington were conceding.
Ten minutes before the break, Keighley kicked to touch and then worked the ball through a few phases to claim a converted try.
Five minutes later, they got even closer as they landed a penalty to leave Dinnington only 17-10 ahead.
Keighley kicked off the second half and for the first 10 minutes kept Dinnington at bay but once the home side got the taste for more tries there was no stopping them as they scored four times before the mid-point of the half.
Marshall broke from the back of a scrum, five metres out, for his second try, converted by West.
Four minutes later Donnelly went over after good work by the forwards and West converted again.
Stimpson skipped past four tackles to score and then a good break in the backs to set up Chris Williams for a try under the posts.
West converted to move Dinnington 43-10 ahead.
Surprisingly, Keighley scored next as their number eight got free from a scrum that Dinnington had destroyed to claim an unconverted try.
Dinnington’s response was to score three tries in the last 10 minutes.
Marshall completed his hat-trick as he broke from the back of a ruck and then Williams completed his hat-trick as he took an inside pass from West to claim his second and was on the end of a break from inside the home 22 to score his third. West converted one and Williams another.
Dinnington were in buoyant mood as they left the pitch, tempered slightly when they heard the Ilkley score.
Dinnington travel to Heath on 22nd March.