The Trail Blazers open play in the Las Vegas Summer League with a 1 p.m. Thursday game against Houston. Portland plays Golden State on Friday, Minnesota on Sunday, Washington on Monday and Phoenix on July 12.
• The $12,000 Alpenrose Challenge is Friday through Sunday at the Alpenrose Velodrome. Pan American Games gold medalist Stephen Alfred is among the top track cyclists entered. Sessions in the Elite Men, Elite Women and Masters categories start at 10 a.m. and 6 p.m. Friday and 10 a.m. and 4 p.m. Saturday and Sunday.
• Three prestigious golf tournaments are looking for volunteers: the U.S. Women's Amateur, Aug. 7 to Aug. 13 at Pumpkin Ridge Golf Club; LPGA Safeway Classic, Aug. 14 to Aug. 20 at Columbia Edgewater Country Club; and the Jeld-Wen Tradition, a Champions Tour major, Aug. 21 to Aug. 27 at the Reserve Vineyards and Golf Club.
For information, call Pumpkin Ridge, 503-860-4653; Safeway Classic volunteer coordinator Karl Aaker, 503-626-2711; or Jeld-Wen Tradition volunteer coordinator Sue Bullock, 503-672-8152.
• U.S. Olympic snowboarder Mason Aguirre, his sister Molly Aguirre, Danny Kass and Danny Davis are among the top competitors scheduled for Burton Snowboards' third annual Abominable Snow Jam, which starts Saturday at Mount Hood.