Multi-Events: Double Decathlon (20 Events):
- Wikipedia: Double Decathlon (Includes dates and locations of World Championships 1990 to Present)
- International Association for Ultra Multievents: IAUM (Includes links to Men’s and Woman’s Records)
- Men’s Records for Ultra Multievents
- World Masters Double Decathlon Championship 2018 in Holland
- Icosathlon and Tetradecathlon Outdoor Records
- Icosathlon and Tetradecathlon Indoor World Championship 1981 to 2019 (Includes recent results)
- Icosathlon and Tetradecathlon Indoor World Championship 2020 in France
- 2010 World Championship Results # 1
- DECA Newsletter: 2010 World Championship Results and other meets
- DECA Newsletters, Meet Results, and Annual Lists
- Cheshire County Athletic Association’s website
- All-Time Double-Decathlon Rankings
Wikipedia link (definition and description):
Wikipedia link: definition and description of the Double Decathlon