August Mangin

Coaching Record

Years Coached	Record	Win %	Playoff record	Playoff win %
5	41-27-0	60.29%	6-3	66.67%

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Biography

Career Summary

August Mangin is a football coach in the National Football League (NFL) and has been the defensive assistant coach for the Detroit Lions since 2025. Prior to this season, he coached for the San Francisco 49ers for four seasons. His most recent position was with the 49ers as their special teams quality control coach/game management specialist.

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History

Year	Position	Record	Playoff record
2025 Detroit Lions	Defensive Assistant Coach	0-0-0	0-0
2024 San Francisco 49ers	Special Teams Quality Control Coach / Game Management Specialist	6-11-0	0-0
2023 San Francisco 49ers	Special Teams Quality Control Coach / Game Management Specialist	12-5-0	2-1
2022 San Francisco 49ers	Special Teams Quality Control Coach / Game Management Specialist	13-4-0	2-1
2021 San Francisco 49ers	Special Teams Quality Control Coach	10-7-0	2-1

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Coach history guide

Seasons with a championship win

Seasons with a conference championship

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