 The following year, the league merged with the California League to become the Pacific Coast League; the Webfooters, after several name change, settled on the name Portland Beavers.Initially, the stadium had a single 3,000-seat grandstand behind home plate; seating was expanded to 6,000 seats in 1905.That year, Portland hosted the Lewis & Clark Centennial Exposition, and the stadium was used for the National Track and Field championships, held concurrently.