DUNBAR United won the South Division championship after thrashing Livingston United on Saturday.
Geoff Jones' side produced a superb performance to thrash their hosts 5-0 and seal the title.
First half goals from Chris Gordon, Kieran Ingram and Chris Grant all-but ensured the title and a comfortable second half for the Seasiders.
They added two more after the break, from Scott Devlin - a free-kick after the hosts had been reduced to 10 men - Dean Ballantyne struck the fifth from the penalty spot.
Championship success means the South Division title remains in East Lothian for a third successive year, following wins by Haddington Athletic (2014/15) and Tranent Juniors (15/16).
The clubs passed on their congratulations...
Well done lads! https://t.co/DDIINEDtrs— Haddington Athletic (@HaddAth) May 6, 2017
and from last year's champions...
Congratulations to @dunbar_united on clinching South Division title today, 3rd season straight trophy's come to East Lothian.— Tranent Juniors (@TranentJRs_FC) May 6, 2017
The title-winning Dunbar United side was: J Johnstone, S Kean, S Tait, C Gordon, S Gibson, C Moffat, K Ingram, C King, S Young, D Handling, C Grant