Complex sentence: The first game in 1900 resulted in a 5--5 tie; the series has been played continuously since 1945, when there were two games, one in Seattle, and one in Pullman.
Split into simpler sentences: The first game in 1900 resulted in a 5--5 tie. The series has been played continuously since 1945, when there were two games, one in Seattle and one in Pullman.