Athletics at the 2020 Summer Paralympics – Men's 100 metres T13

The men's 100 metres T13 event at the 2020 Summer Paralympics in Tokyo, took place on 29 August 2021.

The event was won for the fourth consecutive time by the legendary Irish T13 athlete Jason Smyth in his final Games.

Records
Prior to the competition, the existing records were as follows:

Heats
Heat 1 took place on 29 August 2021, at 12:28:

Heat 2 took place on 29 August 2021, at 12:35:

Heat 3 took place on 29 August 2021, at 12:42:

Final
The final took place on 29 August 2021, at 19:53: