The Lady Horns had one firstplace finish among their five qualifying events at the Region IV-2A track and field meet, hosted by Texas A&M-Kingsville April 19-20.Senior Meredith Magliolo claimed her third straight regional championship in the high jump, tying the Class 2A regional record of 5-feet, 6-inches. She will be defending her 2A girls’ high jump title at 11:30 a.m. on Friday, May 3 at…