ultra-running
noun [ U ] (also ultrarunning) uk/ˈʌl.trəˌrʌn.ɪŋ/ us/ˈʌl.trəˌrʌn.ɪŋ/
超跑，超长跑（如超级马拉松）
the activity or sport of running very long distances or competing in running races, such as ultramarathons, that are longer than usual races
Ultra-running is any run that exceeds the 26 miles of a marathon. 超跑是指任何超过马拉松26英里的超长跑。
To prep his body, Robinson took up ultrarunning and began putting in 50 miles a week training on dirt trails. 为了让自己的身体做好准备，罗宾逊选择了超长跑，开始每周进行50英里的泥土路训练。
- More examples
- Ultra-running is one of the few sports where women compete on an equal level with men, since the gap between the sexes diminishes as the length of the race increases.
- Ultra-running is suited to the older person mainly because they need a very good background of endurance work.
- Rory is an ultrarunning personal trainer.