Tatum's Brett Roberts handcuffed Troup batters, allowing only one hit, as the Eagles shut out the Tigers, 5-0, in Thursday's opening game of a best-of-three bi-district series.
Thursday's game was played on the Eagles' home field.
Roberts fanned 10 Tigers and also had two hits as Tatum ran its slate to 16-10.
Logan Smith worked five innings on the hill for Troup (15-10) and struck out seven.
The series was scheduled to head to Troup for Game 2 on Friday night (results not available as of press time).
If a Game 3 is necessary, it will take place at 2 p.m. this afternoon at Longview High School.