Winning pitcher Kaitlin Van Winkler struck out eight and overcame 12 walks.
Lawson, Chase and Zenir had three hits apiece for Milford (14-1, 12-1), which received two hits from Serena Chase.
“It was a great ballgame,” Weir said.
Smith and Cantwell had two hits apiece for RS.
“It’s unfortunate we gave this one away,” Lehmann said, “but I’m really proud of the girls. This is the best season Richfield Springs has had in about two decades.”
Milford 10, RS 7
Milford 001 710 1 – 10 15 1
Springs 510 001 0 – 7 s9 3
Kaitlin VanWinkler (W) and Natasha Skillen. Kaity Richvalsky (L) and Emma Miner. 2B: Rebecca Smith (RS) 2, Addy Lawson (M) 2, Kaley Chase (M), Natasha Skillen (M), Maddy Zenir (M). 3B: Kaley Chase (M), Maddy Zenir (M).
Cooperstown 7, S-V 6
Park Summers’ RBI single in the top of the seventh inning came with two outs and scored James Johnson as Cooperstown earned a Center State Conference win on the road.
Johnson set up the decisive run with a triple.
Sawyer Haney and Ethan Bliss contributed three hits and two RBIs apiece for Cooperstown. Bliss hit a two-run double in the first inning and Haney drove in two runs with a single in the third.
Cooperstown (9-6, 8-4) avenged a 4-2 loss earlier this season to Sauquoit Valley, which won the CSC D-III title. Chris Hillman paced SV (10-7, 10-2) with two hits and three RBIs.
“This gives us a good boost going into sectionals,” Cooperstown coach Frank Miosek said.
Cooperstown 7, SV 6
Cooperstown 203 100 1 – 7 13 4
Sauquoit Valley 010 040 1– 6 9 3
Sawyer Haney, Ethan Bliss (4,W) and Jack Donnelly. Rob Slavinski, Chris Hillman (4,L) and Tom Jalowiec. 2B: Ethan Bliss (C), Ethan Harris (S). 3B: James Johnson (C).
at Woodgate Pines
Teddy Trosset shot a 2-over-par 36 on the back nine of the Woodgate Pines Golf Club, but Cooperstown dropped a non-conference match to host Adirondack, 170-173.
Matt Frevele contributed a 44 for Cooperstown.