Did Nolan Ryan actually throw 108 MPH? I don't understand how they used to measure speed and how his fastball would measure today. - Quora
Nolan Ryan's Final Start
Why a documentary about Nolan Ryan is also a love letter to Texas – and Ruth Ryan
Twins' Jhoan Duran threw the seventh-fastest pitch in baseball history – Twin Cities
Legendary, dominating, historically wild? There will never be another pitcher like Nolan Ryan - ESPN
Step Into the Batter's Box and Face a 100 MPH Fastball With The 'Nolan Ryan Cam' - FanBuzz
Nolan Ryan Energy The Art of Manliness
Ryan fanned first batter he faced in the big leagues
Facing Nolan
How Much Harder Can a Starter Throw? Noah Syndergaard Could Find Out - The New York Times