the sport or activity of taking part in horse races over long distances

In endurance riding, competitors usually race horses from 50 to 100 miles. 耐力赛马的比赛距离通常在50到100英里之间。

Nicky was the British endurance riding champion and had three horses. 尼基是英国耐力赛马冠军，自己拥有三匹马。

the sport or activity of taking part in bicycle rides over long distances

Her training programme includes four-hour bike rides on weekends plus 40 minutes of endurance riding twice a week. 她的训练计划包括周末骑四个小时的自行车，外加每周两次40分钟的耐力骑行。