|Born||August 2, 1926 at Bashaw, Alberta|
|Died||November 7, 1988 at Toledo, OH|
Thian "Sy" Mah (1926-1988) was a pioneering United States marathon runner. Mah once held the Guinness World record for running 524 marathons in his lifetime.
Mah was born to parents of Chinese ancestry. Mah established and taught exercise and cardiac rehabilitation classes at the University of Toledo in Ohio. In 1987, the last full calendar year of his running, Mah ran 46 marathons, a lifetime high.
In 1989, Mah was inducted into the RRCA Hall of Fame. Also, the Glass City Marathon honors the memory of Sy Mah, as one of Toledo's greatest running enthusiasts. The Sy Mah Trophy is presented annually to the runner in the Sri Chinmoy 24-hour run who runs the most even mile splits.