Dates and times are subject to change without notice. For more information, call 503-227-2681 or visit www.rosefestival.org on the Web. Events are free unless otherwise noted.
Rose Cup Races, presented by Temp-Control Mechanical Corp., 7:30 a.m. gates open, 8:30 a.m. event start, Portland International Raceway, West Delta Park, Interstate 5 exit 306B, $4-$16. Call 503-227-2681.
Portland Arts Festival, presented by Verizon Wireless,10 a.m. to 7 p.m., Portland State University, South Park Blocks, Southwest Park Avenue and Southwest Clay Street.
Oregon Society of Artists 21st annual Rose Art Show, 1 p.m. to 4 p.m., Main Gallery, Oregon Society of Artists Building, 2185 S.W. Park Place. Call 503-228-0706.
Mock's Crest Productions presents Gilbert and Sullivan's 'Iolanthe,' 7:30 p.m., Mago Hunt Theater, University of Portland, 5000 N. Willamette Blvd., $18-$22. Call 503-943-7287.