Dromore only managed a point away to Whitehead B in NIBA Division 2, but they were already champions.
Dromore were missing three regulars, but they really should have done better.
Valley win at Dromore
Dromore B 64 (2) Lagan Valley 86 (5)
Lagan Valley scored a rare away win by 22 shots and took five points against a Dromore B team with a poor home record in NIBA Division 5.
The points made absolutely sure Valley avoid relegation and Dromore were already among the top few teams.
Down 7-11 at the tenth and 12-13 at 15 ends to Jeff Fawcus, Sammy Malcolmson came back strongly to win by seven shots.
At the tenth Jim Kinkead was 14-4 ahead and Tom Sudlow could only pull back to 9-16 at 15 ends. Valley went on to win by 11 shots.
At the tenth Kenny Aiken was 14-4 ahead and 16-9 at 15 ends before Jim Parkinson finished strongly but despite lifting four, two still lost by a shot.
Alan Sudlow was 4-17 down at the tenth and 7-24 at 15 ends and Jim Spence finished well for a 19 shots victory.
T. Ogle, R. McCandless, I. Houston, S. Malcolmson 21, G. Carruthers, M. Blair, M. Hanna, J. Fawcus 14; J. Kinghan, T. Wilson, H. Maxwell, T. Sudlow 15, W. Benson, B. Lemon, J. Houston, J. Kinkead 26; B. Elliott, K. Dickson, J. Black, K. Aiken 19, A. Jennings, D. McPherson, F. Hutchinson, J. Parkinson 18; C. Davis, J. Davis, S. Hanna, A. Sudlow 9, P. Watters, J. Elliott, G. Murdoch, J. Spence 28.