Fastest swim 400 m freestyle - S13 (male)
- Who
- Ihar Boki
- What
- 3:55.56 minute(s):second(s)
- Where
- Canada (Montreal)
- When
- 16 August 2013
The fastest 400 m freestyle by a male para swimmer in the S13 category is 3 minutes 55.56 seconds, achieved by Ihar Boki (Belarus) at the 2013 IPC Swimming World Championships in Montreal, Quebec, Canada, on 16 August 2013.