Mitchell Saxen scored 20 points, Alex Ducas added 18 and No. 18 Saint Mary's extended the longest active winning streak in the nation to 14 straight games with a 70-66 victory over San Francisco on Tuesday night. The Gaels (22-6, 13-0 West Coast Conference) remained the only team in the country unbeaten in conference play but it didn't come easy against their cross-bay rivals.