Mansfield which competes as Nova Centurion. The Sherwood Swimming Baths adjacent to the former Sherwood Colliery was refurbished and opened in January 2010 as the "Rebecca Adlington Swimming Centre". The 25-metre pool was widened at the expense of losing the tiered public seating and has a new, small, endless stroke-improvement training pool with variable-resistance water flow. The complex uses a ground-source heat pump backed by a biomass boiler burning wood pellets prepared from waste by a local wood yard, to reduce its carbon footprint. At the Beijing 2008 Olympic Games, a Mansfield contestant, Rebecca Adlington, won two gold medals, for 400
Janet Evans Olympics, Evans set a new world record in the 400-meter freestyle event. This record stood for 18 years until France's Laure Manaudou broke it in May 2006. Evans held the 1,500-meter freestyle record, set in March 1988, through June 2007, when it was broken by American Kate Ziegler with her time of 15:42.54. Evans held the world record in the 800-meter freestyle, 8:16:22, that she set in August 1989, until it was broken by Rebecca Adlington of Britain in August 2008. Adlington set the new record with her time of 8:14.10 in winning the race at the 2008 Summer Olympics.