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Strikeforce: Diaz vs. Cyborg took place on January 29, 2011 at the HP Pavilion in San Jose, California, United States.
The Undercard was streamed live on Sherdog.com at 8:15 p.m. ET/5:15 p.m. PT.
A total of 8,817 paid attendees generated a live gate of $533,214.50, according to the California State Athletic Commission.
Strikeforce: Diaz vs. Cyborg Previews & Predictions
Strikeforce: Diaz vs. Cyborg Breakdown
Strikeforce: Diaz vs. Cyborg Tapology
| Match | Winner | Loser | Method | Round | Time |
| 1 | Armin Safiari | Samuel Bracamonte | Decision (Unanimous) | 3 | 2:00 |
| 2 | Ricky Jackson | Niko Jackson | Decision (Unanimous) | 3 | 2:00 |
| 3 | Anthony Dariano | Alan Francis Perez | Decision (Unanimous) | 3 | 2:00 |
| 4 | Jenna Castillo | Charlene Gellner | KO (Knee) | 2 | 3:57 |
| 5 | James Terry | Lucas Gamaza | TKO (Punches) | 1 | 3:26 |
| 6 | Germaine de Randamie | Stephanie Webber | KO (Knee) | 1 | 4:25 |
| 7 | Ron Keslar | Eric Lawson | Submission (Armbar) | 1 | 1:57 |
| 8 | Isaiah Hill | Bobby Stack | Submission (Triangle Choke) | 1 | 1:02 |
| 9 | Nate Moore | Nathan Coy | KO (Punches) | 2 | 0:25 |
| 10 | Roger Gracie | Trevor Prangley | Submission (Rear-Naked Choke) | 1 | 4:19 |
| 11 | Herschel Walker | Scott Carson | TKO (Punches) | 1 | 3:13 |
| 12 | Ronaldo Souza | Robbie Lawler | Submission (Rear-Naked Choke) | 3 | 2:00 |
| 13 | Nick Diaz | Evangelista Santos | Submission (Armbar) | 2 | 4:50 |
