2000. In addition, the Natatorium building houses the IUPUI Recreation Program in the basement of the facility, including the Polaris weight room which was built in 1996. Popularly known as IUPUI, this facility has been host to numerous other swim events including the 1982 National Sports Festival, the 1987 Pan American Games, 2001 World Police and Fire Games, NCAA Championships, USA Swimming National Championships, and the Big Ten Championships. Additionally, in July 2009, IUPUI hosted one of USA Swimming's most elite competitions, the 2009 ConocoPhillips National Championships. As part of the agreement for being selected to host the 2016 USA Diving Olympic Trials, the Natatorium underwent roughly $18 million in renovation and repairs before 2016. The project included a new roof and improved climate control. According to local television station WTHR, "the venue cost $21 million to build in 1982, and would cost nearly $75 million to replace." Notable events 1987 Pan American Games Modern Pentathlon, Swimming, Synchronized Swimming, and Water Polo competitions (1987) Arena (now TYR) Pro Swim Series (2017 and 2018) Big East Conference Championships (2009 and 2013) Duel in the Pool (2003 and 2015) FINA Diving World Cup (1989) FINA Swimming World Cup (1988–1989, 2022) FINA Synchronised Swimming World Cup (1985) FINA World Junior Swimming Championships (2017) FINA World Junior Synchronised Swimming Championships (2010) FINA World Masters Championships (1992) NCAA Men's Division I Swimming and Diving Championships (1983, 1986, 1988, 1989, 1990, 1992, 1993, 1995, 1999, 2013, and 2017) NCAA Women's Division I Swimming and Diving Championships (1984, 1987, 1989, 1991, 1994, 1997, 2000, 2013, and 2017) NCAA Division II Men's and Women's Swimming and Diving Championships (2006, 2015, 2016, 2019, 2023) Pan American Junior Water Polo Championships (2022) U.S. Open Swimming Championships (1988, 1990, 1997, and 2012) U.S. Olympic Team Trials (1984, 1992, 1996, and 2000) United States Spring Swimming Championships (1983, 1984, 1992, 2003, and 2005) United States Swimming National Championships (1982, 1994, 2007, 2009, 2013, and 2017) World records broken in the natatorium Long course meters Men 50 m Freestyle 22.18 Peter Williams (South Africa); April 10, 1988 100 m Backstroke 53.17 Aaron Peirsol (USA); April 2, 2005 51.94 Aaron Peirsol (USA); July 8, 2009 200 m Backstroke 1:58.86 Rick Carey (USA); June 27, 1984 1:53.08 Aaron Peirsol (USA); July 11, 2009 100 m Breaststroke 1:02.53 Steve Lundquist (USA); August 21, 1982 1:02.13 John Moffet (USA); June 25, 1984 100 m Butterfly 53.38 Pablo