Legacy Amateur Series 21
| Sport: | MMA |
| Promotion: | Legacy FC |
| Date: | Dec. 12, 2016 |
| Venue: | Houston Arena Theater |
| City: | Houston, Texas, United States |
| Broadcast: |
Main Event
Heavyweight Rick Gonzalez vs. Chris Mitchell
Main Card
Welterweight Christopher Miller vs. Jason Soliz
Bantamweight Leomana Martinez vs. Royala Smith
Lightweight Melvin Giron vs. Timothy Nations
Middleweight David Pfiefer vs. Calvin Diaz
Lightweight Frank Rodriguez vs. Malachi Boykin
Bantamweight Sunny Quang vs. Casey Jones
Flyweight Andrew Powers vs. Shawn Solis
Featherweight Ricardo Rivas vs. Nino Villarreal
Bantamweight Alfredo Sesario Hernandez vs. Eduardo Anaya
Bantamweight Darius Gray vs. Chris Soliz