The Jamestown jayvees fumbled away three scoring drives inside the 30 and in the process lost to Frontier, 19-6, at Strider Field on Saturday morning.
Frontier scored a first-quarter touchdown run and an extra point and Jamestown hit paydirt on a 53-yard run by Zacc Kinsey, but missed the extra point.
The visitors (4-1) tallied touchdowns on runs in the third and fourth quarters while Jamestown fumbled away its chances and fell to 3-2 on the season.
Kinsey had a top-flight game with 143 yards rushing on 16 carries and Matt Nazzaro added 50 yards in eight carries for the Red Raiders.
Chad Jordan led the Jamestown defense with six tackles followed by Damien Jackson with five while Lucas Munella, Cody Lang, Kyle Liuzzo and Kevin Mosley had four apiece.
Jamestown plays at Orchard Park Thursday at 7 p.m.