1:59: The Sub-Two-Hour Marathon Is Within Reach―Here's How It Will Go Down, and What It Can Teach All Runners about Training and Racing: Maffetone, Philip: 9781629148175: Amazon.com: Books
On This Day in 2003: Paula Radcliffe sets new world record at London Marathon | BT Sport
How marathon records have improved as Eliud Kipchoge runs distance in under two hours | Guinness World Records
Beginner Half Marathon Finish Times: What You Should Expect - Canaan Valley Running Company
Eliud Kipchoge marathon record, Nike Vaporfly shoes could be banned, Brigid Kosgei
Kenenisa Bekele misses out on world record by two seconds at Berlin Marathon | Marathon | The Guardian
Ruth Chepngetich Breaks Women's Half-Marathon World Record | POPSUGAR Fitness