Strikeforce: Diaz vs. Daley took place on April 9, 2011 at the Valley View Casino Center in San Diego, California.
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Strikeforce: Diaz vs. Daley drew an average of 528,000 viewers and the peak audience, which coincided with a headlining title fight between welterweight champion Nick Diaz and Paul Daley, resulted in 806,000 viewers.
Strikeforce: Diaz vs. Daley Post Fight Analysis
Strikeforce: Diaz vs. Daley Tapology
Strikeforce: Diaz vs. Daley Pre-Fight Analysis
| Match | Winner | Loser | Method | Round | Time |
| 1 | Casey Ryan | Paul Song | Submission (Triangle Choke) | 1 | 1:39 |
| 2 | Rolando Perez | Edgar Cardenas | Decision (Unanimous) | 3 | 5:00 |
| 3 | Herman Terrado | A.J. Matthews | KO (Punch) | 1 | 4:16 |
| 4 | Joe Duarte | Saad Awad | Submission (Armbar) | 2 | 2:45 |
| 5 | Virgil Zwicker | Brett Albee | TKO (Punches) | 1 | 1:46 |
| 6 | Robert Peralta | Hiroyuki Takaya | Decision (Split) | 3 | 5:00 |
| 7 | Shinya Aoki | Lyle Beerbohm | Submission (Neck Crank) | 1 | 1:33 |
| 8 | Gegard Mousasi | Keith Jardine | Draw | 3 | 5:00 |
| 9 | Gilbert Melendez | Tatsuya Kawajiri | TKO (Elbows) | 1 | 3:14 |
| 10 | Nick Diaz | Paul Daley | TKO (Punches) | 1 | 4:57 |
