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(AP) -- it was a record-setting blowout performance by Team USA in routing Nigeria 156-73, the most points ever scored by a team.

Carmelo Anthony is the new Olympic single-game scoring champ with 37, easily beating the 31 points scored by Stephon Marbury in 2004.

The Americans finished 29 of 46 behind the arc, easily surpassing the 13 3-pointers they made in the 2008 gold-medal game. Anthony was torrid beyond the arc, hitting 10 of 12 three's.

Russell Westbrook added 21 points in an awesome performance that saw the Americans make 11 3-pointers in the first quarter.

Michael Phelps continued to add to his record personal Olympic medal collection.

Number 20 overall and his record 16th gold medal came in the 200-meter individual medley.

Phelps became the first male swimmer to win the same individual event in three straight Olympics.

He outdueled teammate Ryan Lochte (LAHK'-tee) who settled for a silver medal about 30 minutes after he won the bronze in the 200-meter backstroke.

The gold in that event was won by Tyler Clary who posted an Olympic record time of 1 minute, 53.41 seconds.

That improved on Lochte's mark of 1:53.94 set at the 2008 Beijing Games.

Rebecca Soni posted a world record in the women's 200-meter breaststroke.

She became the first women to break the 2 minute, 20 second barrier with a time of 2 minutes, 19.59 seconds.

That was one-hundredth of a second faster than the mark she set in the semifinals on Wednesday.

Gabby Douglas has won the gold medal in women's all-around, adding it to the team gold she shared with her teammates on Tuesday.

Douglas became the third straight American to win gymnastics' biggest prize, taking the lead on the first event with an impressive vault.

She finished with a score of 62.232, less than three-tenths ahead of Russia's Viktoria Komova.

Douglas brought the house down with her energetic floor routine, and U.S. teammates Jordyn Wieber  McKayla Maroney and Kyla Ross jumped to their feet and cheered when she finished.

American Aly Raisman finished tied for the bronze but lost a tiebreaker and had to settle for fourth place.

Serena Williams has reached the semifinals in the Olympic tennis tournament.

She dominated former world No. 1 Caroline Wozniacki  of Denmark in their quarterfinal match, 6-0, 6-3. Williams, who is seeking the first singles medal of her career, will face top seed Victoria Azarenka ( on Friday for a berth in the final.

Later, Serena teamed with sister Venus to reach the semifinals in Olympics doubles, beating No. 2-seeded Sara Errani and Roberta Vinci of Italy 6-1, 6-1.

Venus is seeking a record fourth Olympic tennis gold medal.

(Copyright ©2012 by The Associated Press. All Rights Reserved.)