Colgate (2-5, 1-0 Patriot) trailed 24-14 entering the fourth quarter before cutting the deficit to 3 on a short touchdown run by Ed Pavalko. Holy Cross (3-5, 1-1) then drove to the Colgate 5-yard line but the drive ended with Mike Armiento intercepting a pass from Peter Pujals in the endzone.
McCarney then led the Raiders down the field for the game-winning score. McCarney finished with 241 yards passing and two touchdowns. McCarney also ran for 71 yards and a score.
Pujals' interception was the second turnover by Holy Cross deep in Colgate territory. In the first quarter, Elad Covaliu fumbled at the Colgate 1.
Pujals threw for 232 yards and a touchdown and ran for 55 yards and a score.
Joey Counts scored on a 1-yard run on fourth-and-goal with 2 seconds left to give Montana a 38-35 victory over four-time defending FCS champion North Dakota State on Saturday.
Transfer Vernon Adams will be the starting quarterback when Oregon begins its season against Eastern Washington on Sept. 5.
Tim Beckman is threatening legal action after Illinois fired him as football coach Friday amid allegations of influencing medical decisions and pressuring players to play hurt.
LSU offensive coordinator Cam Cameron revealed in a post-practice news conference that he has been treated for prostate cancer but plans to coach this season.
The woman who accused former Baylor defensive end Sam Ukwuachu of raping her in 2013 has hired a Title IX law firm to represent her in potential civil litigation.
Arkansas tight end C.J. O'Grady has been arrested by Fayetteville police and charged with driving while intoxicated and being a minor in possession of alcohol.