SATURDAY AUTO RACING NASCAR Nationwide Series, Great Clips 300, 7:30 p.m.., ESPN2-TV; WNZS Veazie (1340 AM) radio IndyCar, MAVTV 500, 9 p.m., NBCSN-TV BASEBALL, MAJOR LEAGUE BOSTON at TAMPA BAY, 7 p.m., NESN-TV; WZON Bangor 620 AM, WDEA Ellsworth (1370 AM), WHOU Houlton (100.1 FM), WQDY Calais (92.7 FM), WYBA …