San Diego, CA (SportsNetwork.com) - Derrick Marks had 18 points and five rebounds as Boise State took a 56-46 win over No. 24 San Diego State in a critical Mountain West Conference matchup

James Webb III scored 16 points with 12 rebounds for the Broncos (22-7, 12-4 MWC), who have won four straight to move into a tie with San Diego State for first place in the conference.

Winston Shepard had 16 points while J.J. O'Brien added eight points for the Aztecs (22-7, 12-4), who had a school-record 29-game home winning streak snapped.

"It's been a long time since I've come up here with a frown on my face and feeling disappointed," said San Diego State coach Steve Fisher. "I've got both of those. We had an opportunity to clinch at least a share of the title tonight and we didn't get it done. That's disappointing."

The Broncos were trailing by seven when the team went on a 10-0 run to take a 42-39 lead with just under eight minutes to play.

After O'Brien stopped the run with a layup, Kevin Allen made a layup and Webb buried a 3-pointer for a six-point lead.

Aqeel Quinn then put in a layup to make it a four-point game with just under six minutes to play, but San Diego State did not score another point until inside a minute to play, and by that time Boise State had built a nine-point lead to put the game away.

"We knew we could come back, especially with this team," said Marks. "We have players that can make a lot of shots and guys that can drive and make plays. We just did what we do best."

The Aztecs led for much of the first half, and a 7-0 run, thanks to Boise State going almost five minutes without a point, saw the team holding a 17-8 lead after Malik Pope hit a pair of free throws.

An 11-3 run from the Broncos saw the team cut their deficit to one. San Diego State took a 24-21 lead into the break and expanded its lead to 39-32 with just over 11 minutes to play after a Pope free throw.

Game Notes

Boise State plays at San Jose State on Wednesday ... San Diego State plays at UNLV on Wednesday ... Boise State swept the series this season as the team took a 61-46 win at home earlier in February ... Neither team shot well as Boise State made just 34.6 percent of its shots, while San Diego State made 32.7. The Broncos, though, controlled the glass 42-30.