![Modern pentathlon to exchange horses for obstacle courses Modern pentathlon to exchange horses for obstacle courses](https://www.washingtonpost.com/wp-apps/imrs.php?src=https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/KXYEIW66G5EMLCXCPJQ7PPX2KU.jpg&w=1440)
Modern pentathlon to exchange horses for obstacle courses
Placeholder while article actions load Modern pentathlon has always been something of an odd duck among the Olympic sports, a mash-up of competitions — fencing, swimming, horse riding, pistol shooting and cross-country running — that to modern eyes seemingly…