Indiana University Natatorium Swimming Championships, local/regional meets, as well 11 Olympic Trials in swimming, diving, and synchronised swimming. The main competition pool of the Natatorium is 50-meters with eight racing lanes. Two moveable bulkheads allow for long or short course events as well as hosting water polo and synchronized swimming. The seating capacity of the Natatorium is 4,700, making it the largest indoor pool in the United States. There is also room for additional seating of 1,500 on deck. The depth of the pool is at the ends and at center of pool. Water temperature is kept at . The main pool contains
Indoor hockey Indoor hockey Indoor hockey, is an indoor variant of outdoor "field" hockey. It is not to be confused with indoor roller hockey variants such as rink hockey or inline hockey. It is traditionally and mainly played as a pastime by outdoor field hockey players during the off-season or when conditions are unsuitable for outdoor play. Indoor hockey is played in regular national and international championships. The first Indoor Hockey World Cup was organized in 2003. It included countries which do not compete at the highest level of the outdoor game. Indoor hockey differs from its outdoor parent in several ways: