Walton’s Rhyan Howe scored four minutes into play off an assist from Kelsey Smith.
Gravelin tied it two minutes later. She received a throw-in from Bethany Karl before scoring to the far post on an 18-yard from the right side of the box.
With 15:49 left in the first half, Gravelin stole a clearing attempt and scored the winner from nearly the same spot as her first goal.
Sidney (6-4, 5-1) will travel to Delhi on Thursday.
Windham 1, Gilboa 0
Mattie Seamans’ goal with 8.8 seconds left in regulation lifted host Windham to a Delaware League victory.
The Warriors (5-3, 3-3) have won three straight.
Windham’s scoring sequence started when Jane Rion intercepted a pass in the midfield and sent a pass to Julie Vining. A long pass by Vining found the foot Seamans, who sped past a Gilboa defender before scoring to the far post from close range.
Kali Drum, starting in goal for the first time, made four saves in a shutout.
The Warriors will travel to Jefferson on Thursday.
Little Falls 3, Cooperstown 1
Visiting Cooperstown suffered its second straight 3-1 Center State Conference loss to unbeaten Little Falls, but the numbers indicate Cooperstown played better this time.
Cooperstown (6-3) was outshot, 23-8, in its home loss to Little Falls (10-0) on Saturday. This time, the shots were 21-17 in favor of Little Falls.
“We came out strong,” Cooperstown coach Jennifer Pindar said.
Cooperstown closed to 2-1 with 19 minutes left. Ellen Vibbard controlled a loose ball in the box following a corner kick before scoring.
But Maria Morotti restored Little Falls’ two-goal lead with 14 minutes remaining.
Katie Kleban made 18 saves for Cooperstown.
“She’s a great goalie and she made some great saves to keep us in the game,” Pindar said.
Cooperstown will host Herkimer on Thursday.
Franklin 6, G-MU 2
Mariah McNeilly scored twice and Jessie Downin had a goal and an assist to lead Franklin to a Tri-Valley League victory on the road.