ARLINGTON — Arlington Lamar opened the second half with a 13-play scoring drive and shut out Arlington the rest of the game en route to a 24-14 win Friday night over the Colts at Cravens Field.Cameron Smith scored on fourth-and-goal from the 1-yard-line to put Lamar up 21-14 with 7:42 left in the third quarter. The senior had 142 yards rushing on 24 carries. A 44-yard field goal from Ryan Jacobs near the end of the third quarter gave Lamar (4-1, in 2-0 District 3-5A) a 10-point lead.Arlington (1-4, 0-2) drove into Lamar territory on three of its four second-half drives but didn’t capitalize.The Vikings forced a turnover on downs in the third quarter with Arlington on the Lamar 29. In the fourth quarter, both of Arlington’s field-goal attempts failed, one after a botched snap and the second going wide left.Lamar’s strong start to the second half shifted momentum away from the Colts, who trailed 14-0 in the first quarter but were sparked by a 54-yard touchdown run from Raymond Sheard. Arlington forced turnovers on Lamar’s next two possessions. Cassius Grady picked off Shane Buechele’s pass on third and long. With Lamar driving into Arlington territory, the Colts forced and recovered a fumble on a Buechele run that would’ve resulted in first down. Arlington drove 14 plays, capped by a 4-yard touchdown pass from Michael Gray to Tanner Zang to tie the game at 14-14 with 24 seconds left in the half.Jamal Kemp and Smith put Lamar ahead with touchdowns in the first quarter. Smith broke through for a 42-yard score on his second carry of the game. Buechele completed 12 of 27 passes for 140 yards and rushed for 70 yards.Gray finished 17-of-31 passing for 150 yards. Sheard led all rushers with 160 yards on 16 carries.