The Henley Boat Races were a series of annual rowing races between various crews representing the University of Oxford and the University of Cambridge. The event included the Lightweight Men's Boat Race from 1975 to 2018, the Women's Boat Race from 1977 to 2014, the Lightweight Women's Boat Race from 1984 to 2019 and the Collegiate Boat Races from 2010 to 2019. Between 2015 and 2020, the openweight and lightweight Varsity races previously held at Henley were relocated to the Championship Course to match the openweight men's Boat Race, at which point the Collegiate Boat Races were scrapped.