Buerge’s three-run shot came in the fourth inning. She was 2-for-5 with four RBIs.
Mathiesen, who had seven strikeouts in a three-hitter, hit a fifth inning grand slam and drove in six.
Margaretville (2-2, 0-2) will host Roxbury today.
Margaretville 25, Stamford 9
Stamford 000 630 – 9 3 12
Margaretville 203 479 – 25 12 3
Lizzy Smith (L), Vesta (5) and Melanie Petrone. Rachel Mathiesen (W,2-2) and Tess Svoboda. 2B: Tess Svoboda (M) Rachel Mathiesen (M), Kellsey Buerge (M), Katie Balura (S). HR: Kellsey Buerge (M), Rachel Mathiesen (M)