Late in the first half, Reed scored off an assist from Will Merill to make it 3-1.
Graven-Briggs finished with two goals and Joe Shearer made 15 saves for the Crimson Knights.
Afton (1-11-1, 1-10-1) will host Bainbridge-Guilford on Friday for their Senior Appreciation night.
Davenport 5, Downsville 0
Mike Libby scored three goals to lead Davenport to Delaware League victory on the road.
Libby scored four minutes into play on a 15-yard shot. Teammate Eric Merwin made it 2-0 15 minutes later scoring from 5 yards. Merwin finished with two goals and Cody Wamsley contributed two assists for the Wildcats, who were outshot, 10-6.
Chris Kopf made four saves for Downsville (7-6, 4-3), which will host Margaretville on Friday.
Franklin 3, Laurens 0
Derek Beers scored three times in under six minutes to lead Franklin to a Tri-Valley League road victory.
Beers opened the scoring with 16:22 left in the first half. He made it 2-0 on a direct kick with 13:02 and capped the scoring on a penalty kick with 10:40 remaining in the half.
Zach Schinski made 10 saves for the Leopards (1-11-1, 1-10-1), who'll travel to Gilbertsville-Mount Upton on Friday.
Edmeston 2, Unatego 0
Linton Wainright scored goals 2 ½ minutes apart early in the first half as visiting Edmeston earned a non-league victory.
Wainright's first goal on a penalty kick after a Unatego player was called for a handball in the box. His second goal came from 20 yards after he dribbled in from the midfield.
“They did a nice job possessing in the midfield,” Unatego coach Eric Miller said. “We weren't able to get the ball to our forwards.”
The Spartans (8-4-2) will travel to Sidney on Friday.
Gilboa 8, H-T 3
Mike Smith scored three goals as visiting Gilboa won in the Delaware League.
Early in the second half, Christian Cooper headed in a corner kick from Hunter Grace to give Gilboa a 4-1 lead.