Jaybo Shaw ran for three touchdowns and Georgia Southern used its triple option to run for 423 yards and beat William & Mary 31-15 Saturday in the second round of the Football Championship Subdivision playoffs.

Freshman Robert Brown ran for 178 yards and a touchdown for the Eagles (9-4), an at-large playoff team from the Southern Conference in their first season under Jeff Monken.

William & Mary (8-4), seeded second overall in the playoffs, failed to score an offensive touchdown and never solved the offense that former coach Paul Johnson perfected while leading the Eagles to two national titles before moving on to Navy and then to Georgia Tech.

Georgia Southern, which won the last of its six national championships in 2000, moves on to play Wofford (10-2) next weekend. Wofford beat Jacksonville State 17-14, also Saturday.

The Eagles trailed 15-14 at halftime, but dominated the second half.

Darries Robinson went 44 yard with an option pitch on the first play from scrimmage, and Shaw ran it in from the 18 three plays later, putting the Eagles ahead to stay after just 2:01 of the half.

When William & Mary went three-and-out on its next series, the Eagles responded with a 13-play drive to Adrian Mora’s 21-yard field goal. After the Eagles held again on defense, they drove 69 yards in 10 plays to Shaw’s 3-yard run, making it 31-15, the final points.

The Tribe led 15-14 at halftime, and could have been ahead by more. Three times William & Mary drove inside the Eagles 20, and all three times settled for field goals by Drake Kuhn.

William & Mary’s lone touchdown came on Shaw’s second pass of the game, which Evan Francks intercepted at the Eagles’ 48 and returned for a touchdown.

A two-point conversion failed when Ryan Moody couldn’t hang on to Mike Callahan’s rifled pass into the end zone.

Callahan was 16 for 34, but for just 113 yards for William & Mary.

Georgia Southern started quickly, with Brown taking a pitch from Shaw on the Eagles’ first play from scrimmage and running 45 yards. Three more runs, all by Brown, covered the final 16 yards and the Eagles led 7-0 with just 3:22 gone off the clock.

A long kickoff return by Laron Scott to the Georgia Southern 46 set up the Eagles’ second touchdown drive. It took 10 plays, and Shaw ran it in from the 1 on his second try.