United States Modern Pentathlon Association
- Includes results, rules, FAQ, calendar, history and related links. Also provides US team profiles and champions from 1991.
- http://www.usolympicteam.com/152.htm

TracyMattes.com
- Official site, features athletic and journalism biography, gallery and general information on the sport.
- http://www.tracymattes.com

Hellenic Modern Pentathlon Federation
- Official site featuring organization information, national and international events, photos, and links.
- http://www.pentathlonhellas.gr

Modern Pentathlon Association of Great Britain
- Covers events in Britain and includes membership information.
- http://www.mpagb.org.uk/

Modern Pentathlon
- Guide featuring the sport's history, disciplines, competitions, and scoring system.
- http://www.modern-pentathlon.com/

Modern Pentathlon Sweden
- The official site with information, results, photographs, and links.
- http://home.swipnet.se/modernfemkamp/eng

Cambridge University Modern Pentathlon Club
- Offers details on training, social and competitive events calendar, news, photo gallery and links.
- http://www.srcf.ucam.org/cumpc/

Modern Pentathlon Victoria
- History, organization, athletes, calendar, news.
- http://www.pentathlon.org.au/

Oxford University Modern Pentathlon Association
- Offers information on the sport, and the organization's training and competition schedule, along with a mailing list and code of conduct for membership.
- http://users.ox.ac.uk/~oumpa/

Alberta Modern Pentathlon Association
- Provincial governing body promoting the sport in Alberta, Canada. News, rules, forms, links, events calendar and classified ads.
- http://www.alberta_pentathlon.homestead.com/

British Columbia Modern Pentathlon Association
- Provides news, competitions calendar, spectator guide, along with athlete development, assistance and profiles. Scoring, rules and links are also featured.
- http://www.bcmpa.bc.ca/

Union International de Pentathlon Moderne
- Recognized by the International Olympic Committee as the world governing body for the sport. Includes news, rules, competitions, results, links, and a forum.
- http://www.pentathlon.org/

HickokSports.com: History: Modern Pentathlon
- Features a short history of the sport and a list of all Olympic champions.
- http://www.hickoksports.com/history/modpent.shtml