The Mercy defense stopped a two-point conversion with 1:30 left in the fourth quarter to seal a 22-21 win over fourth-seeded Hampton Bays yesterday in a Suffolk IV football quarterfinal. With No. 5 Mercy (7-2) leading 22-15, Justin Carbone hit Trey Kennedy for a 30-yard TD reception to cut the lead to one point. Mercy trailed 15-14 until Thomas Kent scored on an 8-yard TD runwith 3:10 left in the game. Asiah Wilson ran for the two-point conversion to make it 22-15. Kent had 131 yards on 14 carries and Wilson ran for 79 yards and two TDs on 16 carries. Mercy earned its first playoff win since 1991. Mercy also won seven games in a season for the first time since 1978. Mercy will play at Babylon at 1 p.m. Saturday in a semifinal. Hampton Bays is 5-4. Babylon 55, East Hampton 14: Eric Schweitzer ran back two interceptions for touchdowns for No. 1 Babylon (9-0) in a quarterfinal. Nick Santorelli passed for 119 yards and rushed for 97 and Jake Carlock had two catches for 81 yards and two TDs. Shawn Tripp rushed for 50 yards and two TDs on nine carries for Babylon. No. 8 East Hampton is 3-6.

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Mount Sinai 20, Glenn 14: Mike Donadio ran for 168 yards and two TDs on 14 carries and Mark Donadio rushed for 181 yards and a touchdown on 21 carries for No. 2 Mount Sinai (8-1) in a quarterfinal. Mark Donadio also had an interception and Joe Barone and Mike Cortese each had a sack to lead the Mustangs' defense. Mount Sinai will host Shoreham-Wading River in a semifinal. No. 7 Glenn is 4-5.

Shoreham-Wading River 35, Stony Brook 12: Tyler Anderson rushed for 271 yards and four TDs on 21 carries to lead No. 3 Shoreham-Wading River (7-2) past No. 6 Stony Brook (5-4) in quarterfinal. The Shoreham-Wading River defense made two goal-line stands, one leading 14-0 and the other up 28-0.