Sewerby visited fellow strugglers York 2nds, needing a win to avoid relegation from York Senior League Premier Division.
York won the toss and elected to bat first. Tom Chippendale took a wicket with his second ball and a further wicket for him and two for Russ Robinson reduced York to 37/4.
A wicket for Rob Coates saw them slump to 59/5 but then the biggest partnership of the day between Rob Flack and skipper Ian Jarvis took the score to 119 before Flack was out for 34, bowled by Coates.
Jarvis scored runs from every ball he faced in the final overs with York scoring 79 runs from the final 12 overs to take them to 198/8 with Jarvis 75 not out. Best bowler for Sewerby was Coates with 2-28 from 12 overs.
Sewerby were given a sound start as the Tennant brothers put on 29 for the first wicket before Mark was out for 20.
Three more wickets fell in quick succession to reduce them to 47/4.
Russ Robinson and Chippendale put on 24 before Chippendale was out for 12, to bring Rick Robinson to join his brother. They put on 42 and were looking well set when Rick was deceived by spin bowler Adams and was bowled for 19.
Russ Robinson was bowled by Tom Love for 42 who then took the last two wickets in successive balls to complete his hat-trick with Sewerby all out for 126 to end a disappointing season with relegation from the Premier League.
Bridlington entertained promotion-chasing Acomb for the final game of the season and asked them to bat first after winning the toss. Openers Andy Tute and Booth put on 57 before Frankie Reffold had Booth caught for 19.
Casey Rudd dismissed the dangerous Tute for 37 but the middle order all made decent contributions particularly Burton (32) and Pepper (21).
Good bowling in the middle overs helped restrict Acomb to 190 and there were two wickets for Sam Edmundson, Rudd and Steve Janney.
Brid’s reply got off to a steady start but they were reduced to 51/4. Rudd and Janney then put on 80 for the fifth wicket, however when Rudd went for 67 the lower order were unable to support Janney enough.
Janney fell for a well made 48 but the last pair of Harry Burnhill and Adam Ykhlef held out for a losing draw. With Sessay losing to Heworth, Acomb sealed promotion back to the Premier Division in 2015.