OAKLAND, Calif., Nov. 23 (Ticker) -- The Golden State Warriors have improved a lot since last season. Tim Duncan and the defending champion San Antonio Spurs showed them they still have a long way to go.

Duncan had a double-double in the first half and finished with 19 points and 12 rebounds as the Spurs posted a convincing 113-89 victory over the Warriors.

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A popular pick to end a 12-season playoff drought, Golden State (7-6) was off to its best start since the 1991-92 campaign. However, if the Warriors wanted to use this contest as an indication of how far they had come, they could not have been pleased with the result.

"Our anticipation is that we would be up to play and the World Champs coming in and obviously, they were up to play," Golden State coach Mike Montgomery said. "They demonstrated that and we didn't match that level and that's why they're World Champs."

Rookie Ike Diogu's jumper with 10:15 left in the half drew Golden State within 41-28 before San Antonio closed the half with a 25-8 spurt to pull away. Duncan scored 10 straight Spurs' points during the run, which was capped by a pair of free throws from Tony Parker that made it 66-36 with seven seconds remaining.

"We played well tonight out of the gates and sustained throughout," Duncan said. "We jumped on them early, shot the ball well and once we got on them it was tough for them to get back in the game."

Parker scored 15 of his season-high 26 points and Manu Ginobili added 10 of his 14 in the first half, when San Antonio shot 60 percent (27-of-45) from the field while holding Golden State to 33 percent (13-of-40).

"I'm playing good so far, got a good rhythm," Parker said. "I try to improve every year and try to go to the next level. I'm just comfortable now. It's one of those games where everything went our way. We just played a great game. It happens sometimes."

The Warriors scored a season-low 12 points in the second quarter, making 4-of-18 shots.

"There are some things they do that we would like to emulate in terms of their approach to the game, their toughness," Montgomery said. "That's something worthy of aspiring to. That's a good basketball team."

San Antonio - which set season highs in points, baskets (45) and assists (31) - put it on cruise control in the second half and rested its starters in the fourth quarter en route to its fifth straight win. Golden State never got closer than the final margin over the last two periods.

"We probably played our finest game of the season so far," Spurs coach Gregg Popovich said. "It was a bad combination for Golden State because I think they just had a bad night. They played a lot better than this and have done a great job against everybody. They just had one of those nights and that's the name of the game."

Troy Murphy was one of the few bright spot for the Warriors, collecting 27 points on 8-of-13 shooting. Making his NBA debut, Diogu scored 11 in 14 minutes off the bench.

"It was good being out there," said Diogu, who had been out with a broken left hand. "I hadn't played in a while. I'm still really rusty, especially on the defensive end. It's just one of those things you've got to look past and move on to the next game."

Bruce Bowen scored a season-high 12 points and Nazr Mohammed contributed 10 and 10 rebounds off the bench for the Spurs, who held a 52-27 advantage on the boards.

"We just got beat on the boards, really, really bad," Murphy said. "They came out and they were really physical with us. There was a time where we were down by 30 rebounds. You're not going to beat anybody when you're down 30 rebounds."