On the air

AUTO RACING 11 a.m. NBCSN: IndyCar Series, Indianapolis 500, practice and Carb Day, at Indianapolis 1:30 p.m. NBCSN: IndyCar Series, Indianapolis 500, Carb Day-Pit Stop competition, at Indianapolis COLLEGE SOFTBALL 4 p.m. ESPN2: NCAA Super Regionals, Oklahoma vs. Auburn, at Auburn, Ala. 6 p.m. ESPN2: NCAA Super Regionals, Texas A&M vs. Tennessee, at Knoxville, Tenn. 7 p.m. ESPN: NCAA Super Regionals, Florida vs. Alabama, at Gainesville, Fla. 9 p.m. ESPN or ESPN2: NCAA Super Regionals, Baylor vs. Arizona, at Tucson, Ariz. 9 p.m. ESPN or ESPN2: NCAA Super Regionals, UCLA vs. Mississippi, at Los Angeles 11 p.m. ESPN2: NCAA Super Regionals, Utah vs. Washington, at Seattle GOLF 5 a.m. GOLF: European PGA Tour, BMW PGA Championship, second round, at Surrey, England 1 p.m. GOLF: PGA of America, Senior PGA Championship, second round, at Potomac Falls, Va. 4 p.m. GOLF: PGA Tour, Dean & DeLuca Invitational, second round, at Fort Worth, Texas 7 p.m. GOLF: LPGA Tour, LPGA Volvik Championship, second round, at Ann Arbor, Mich. (sameday tape) MLB BASEBALL 7 p.m. NESN, WTIC1080: Mariners at Red Sox 7 p.m. WPIX, WFAN660: Athletics at Yankees 7 p.m. SNY: Mets at Pirates SAILING 6 p.m. NBCSN: America’s Cup, qualifiers, at Great Sound, Hamilton, Bermuda. (same-day tape) SOCCER 6:55 a.m. FS1: FIFA U-20 World Cup, group play, England vs. South Korea, at Suwon, South Korea 3:55 a.m. (Saturday) FS1: FIFA U-20 World Cup, group play, Portugal vs. Iran, at Incheon, South Korea WNBA BASKETBALL 7 p.m. CSNNE: Lynx at Sun (Schedule subject to change and/or blackout)