AUGUST 5, 2012 — Jamaica’s Usain Bolt claimed consecutive gold medals in the marquee track and field event at the Summer Games in London. Only about fifth-fastest of the eight runners to the halfway mark, Bolt erased that deficit and overtook a star-studded field to win the 100-meter final in 9.63 seconds, an Olympic record that allowed him join Carl Lewis as the only men to win the event twice.
Golf — PGA Tour: The Wyndham Championship, second round, 11 a.m., TGC; Korn Ferry Tour: The Utah Championship, second round, 3 p.m., TGC
Men’s soccer — Premier League: Arsenal at Crystal Palace, noon, USA
Mixed martial arts — PFL Playoffs Main Card: lightweights and light heavyweights, 4 p.m., ESPN
WNBA — Los Angeles at Atlanta, 4:30 p.m., CBSSN
Men’s lacrosse — PLL: Cannons vs. Redwoods, 6 p.m., ESPN
Minor league baseball — Eugene at Spokane, 6:30 p.m., SWX
MLB — L.A. Angels at Seattle, 7 p.m., ROOT
Women’s soccer — NWSL: North Carolina at Portland FC, 7:30 p.m., CBSSN
Australian rules football — Essendon at Greater Western Sydney, 9 p.m., FS2
SATURDAY
Australian rules football — St. Kilda at Geelong, 2 a.m., FS2
Track and field — World Athletics U20 Championships, 4 a.m., CNBC; Diamond League: Poland, 7 a.m., CNBC
Golf — DP World Tour: The Wales Open, third round, 2:30 a.m., TGC; LPGA: The AIG Women’s Open, third round, 5 a.m., USA and 9 a.m., NBC; Western Amateur Championship semifinals, 7:30 a.m., TGC; PGA Tour: The Wyndham Championship, third round, 10 a.m., TGC and noon, CBS; PGA Tour Champions: The Shaw Charity Classic, second round, noon, TGC; Korn Ferry Tour: The Utah Championship, third round, 3 p.m., TGC
Men’s soccer — Premier League: Cheslea at Everton, 9 a.m., USA; Bundesliga: Borussia Dortmund at Bayer Leverkusen, 9:20 a.m., ABC; MLS: Seattle at Atlanta, noon, ABC
Horse racing — Saratoga, 10 a.m., FS2; Breeders’ Cup Challenge Series, 2 p.m., NBC
Baseball — Miami at Chicago Cubs, 11 a.m., FS1; L.A. Angels at Seattle, game 1, 1 p.m., ROOT; Senior League final, 1 p.m., ESPN; N.Y. Yankees at St. Louis, 4 p.m., Fox; L.A. Angels at Seattle, game 2, 7 p.m., ROOT
Softball — Athletes Unlimited: Team Mulipola vs. Team Eberle, 11:30 a.m., ESPN2; Junior League final, 2 p.m., ESPN2
Swimming — U.S. Championships, noon, NBC
Auto racing — NASCAR Xfinity Series: New Holland 250, noon, USA
Gymnastics — U.S. Classic, 1 p..m., NBC
Hockey — 3ICE: Team Trottier vs. Team Murphy, Team Fuhr vs. Team Mullen, Team LeClair vs. Team Carbonneau, 2:30 p.m., CBSSN
Tennis — Various tournaments, 3 p.m., Tennis
CFL — Hamilton at Toronto, 4 p.m., ESPN2; Edmonton at British Columbia, 7 p.m., ESPN2
Mixed martial arts — UFC Fight Night: preliminaries, 4 p.m., ESPN; UFC Fight Night: Thiago Santos vs. Jamahal Hill (light heavyweights), 7 p.m., ESPN