The modern pentathlon is an Olympic sport that comprises five different events; fencing (one-touch épée), freestyle swimming (200 m), equestrian show jumping (15 jumps), and a final combined event of pistol shooting and cross country running (3200 m). This last event is now referred to as the laser-run, since it alternates four legs of laser pistol shooting followed by an 800 m run (for 3200 m in total). The event is inspired by the traditional pentathlon held during the ancient Olympics; as the original events were patterned on the skills needed by an ideal Greek soldier of the era, the modern pentathlon is similarly patterned on events representing the skills needed by cavalry behind enemy lines.

 Modern pentathlon, despite its long Olympic history, has had to justify its inclusion in the modern Olympic Games several times. On February 11, 2013 in Lausanne, the IOC confirmed modern pentathlon once again as one of the 25 core sports of the Olympic program through to 2020. The governing body, Union Internationale de Pentathlon Moderne (UIPM), administers the international sport in more than 90 countries.