Koch had 11 points to lead Edmeston, one more than teammate Sydney Smith.
Gabby Travis’ 10 points paced Worcester.
The Panthers (3-7, 1-5) will travel to Schenevus on Friday.
Franklin 56, CV-S 44
Jordan Beers scored a game-high 32 points, including five threes, to lead the visiting Purple Devils to a victory in the Tri-Valley League.
Beers had 11 points, including three threes in the third quarter to help Franklin to a 41-36 lead heading into the fourth quarter.
Marisa Cawley contributed six of her 19 points in the fourth quarter for Franklin.
Maddie Archer scored a team-high 24 points for Cherry Valley-Springfield (6-3, 3-2) which travels to Gilbertsville-Mount Upton on Friday.
Oxford 29, Walton 26
Destyni Twyman and Megan McNamara scored six points apiece for Walton, which lost at home in the Midstate Athletic Conference.
McNamara hit a three-pointer with 1:05 to play to pull Walton to three points, but the Warriors never got any closer.
Taylor Vernooy grabbed six rebounds and had five steals for Walton (0-8, 0-4), which travels to Greene on Saturday.
‘‘Two evenly matched teams,’’ Walton coach Greg Backus said.
SK 62, Gilboa 37
Tori Rockefeller hit four three-pointers and matched her varsity-high of 31 points to lead visiting South Kortright to victory in the Delaware League.
Rockefeller had 11 points in the first quarter as the Rams opened on a 21-9 run.
Allison McGuire and Makayla Foster had eight points apiece for Gilboa (5-3, 3-3), which will face Franklin in the championship game of the Margaretville Tournament on Saturday.
B-G 67, Hancock 29
Morgan Bullis scored a game-high 15 points and grabbed a team-best 17 rebounds, to go along with five steals as host Bainbridge-Guilford won in the Midstate Athletic Conference.
Bullis had 11 points in the third quarter as B-G outscored Hancock, 23-8.
Bainbridge-Guilford (5-4, 3-1) also received 12 points from Rebecca Reyes, 11 points from Abbey Smith and 10 points from Taylor Palmatier.