Just when it appeared Texas High would finally clear the Highland Park hurdle, the Scots raised the bar.

Leading 5-3 after six innings Saturday, the Tigers imploded in the seventh, allowing the Scots to score eight runs—seven unearned—and end the best-of-three area-round series with an 11-5 win.

“The litmus test for being a good 4A ballclub is beating those teams from the Metroplex, and we’ve got a ways to go,” said THS coach Glenn Welch, whose Tigers were swept for the second straight year by the Scots. “They’ve got so many good players, and the best team won today. Th...