Andy Velazquez's two-out walkoff hit, a sharp single up the middle, capped a dramatic four-run rally in the bottom of the seventh, giving Plano an 8-7 win over Seneca on Tuesday and a sweep of the two-game Interstate Eight Conference series.
Tyler Ward had three hits and two runs batted in for the Reapers (8-10, 4-2), who rallied off Seneca ace and Illinois Wesleyan recruit Hunter Simon.
"It was a true team effort," Plano coach John Parpet said. "We weren't sharp on the mound, but the kids refused to give in."
In Monday's opener, Carlos Martinez couldn't throw it much better.
Plano's senior right-hander tossed a complete-game effort, allowing one earned run and striking out seven to lead the visiting Reapers past Seneca 10-2.
Martinez (2-2), who scattered six hits and walked zero, won his second straight decision to lower his earned run average to 2.66 on the season.
Martinez even helped his cause at the plate, going 2-for-4 with two doubles and four runs batted in.
"That's as good as I've seen Carlos throw," Parpet said of his four-year ace. "All three of his fastballs were working, his breaking balls were on, fastball command and changeup was good. He was sharp."
It was a good day all-around for the Reapers.
Levi Campbell hit a three-run homer, Ward was 3-for-4 with a double and two runs scored and Alec Tisberger 3-for-4 with a double, two runs scored and two RBIs as part of a 13-hit attack.
"This was as good as we've played since I've been here," Parpet said. "The execution was there. Our kids did a good job of adjusting and shortening up their swings."
Plano 17, Indian Creek 7: Ward had two hits, three runs scored and two RBIs, Ethan Kee two hits, a double and three RBIs and Campbell had three runs scored and two RBIs against Indian Creek on April 15.
Reed-Custer 7, Plano 3: Campbell and Kee had two hits and Ward two RBIs for the Reapers on April 13.
Lisle 2, Plano 1: Ward (0-4) got the tough-luck loss, allowing just two runs over six innings with three strikeouts on April 12. Tisberger and Will Benson had Plano's only hits.