WASHINGTON - - Tim Duncan scored 23 points and reserve Roger Mason Jr. added a season-high 20 to lead the San Antonio Spurs to their fifth straight victory on Saturday night, 97-86, over the Washington Wizards, who remained enveloped in a gun controversy surrounding Gilbert Arenas.

Tony Parker had 12 points for the Spurs, whose winning streak matches a season high. San Antonio has won four straight on the road and nine in a row against the Wizards.

Duncan's jump hook gave the Spurs an 81-80 lead with 6:21 left in the game, and he followed that with two free throws as part of a decisive 12-2 run.

Caron Butler scored 24 points and Arenas added 23 for the Wizards, who have dropped four straight. Antawn Jamison had 17 points and nine rebounds