The Marblehead High girls track team ousted Gloucester, 50-30, Thursday at Gloucester.The Magicians got a boost from first-place finishers Katherine Millett-Slattery in the 50 hurdles (7.6); Maggie McMullen, 50 (6.7); Sarah Bittermann, 300 (42.6); and JoJo Wallace, 2-mile (13:29). Marblehead swept the 50 and the 300.Danvers 63, Saugus 22At Gloucester, Saugus had wins from Alyssa Williamson in the high jump (4-10); Elizabeth Shaw, 50 (6.6); and Rose Karshis, 600 (1:35.9). The Falcons picked up wins form Dana Harvey, shot put (29-6); Jocelyn Belanger, 50 hurdles (8.5); Christina Kaczynski, 300 (40.8); Katelyn Hartnett, 1,000 (3:01.5); Christina Montefusco, mile (5:46); and Amanda Porter, 2-mile (13:09).BOYS TRACKDanvers 52, Saugus 25At Gloucester, the Sachems came up short despite wins from Jason Guarente in the 1,000 (2:34.3) and twin brother Matt Guarente in the mile (4:59.2). Kevin Gable was a double winner for the Falcons in the high jump (6-3) and 50 hurdles (7.2).G’ster 55, M’head 22At Marblehead, Jacob Evanter won the 50 hurdles (7.2) and Mike Sahagian the 50 (5.6) for the Magicians. Gloucester took the remaining firsts.