| Event Details | |
|---|---|
| Organization | Ultimate Fighting Championship |
| Name | UFC 31 - Locked & Loaded |
| Date | May 4th, 2001 |
| Venue | Trump Taj Mahal |
| Location | Atlantic City, New Jersey, United States |
| Fight #1 | |
|---|---|
| Welterweight Bout | |
  |
 |
| Tony DeSouza | Steve Berger |
| Tony DeSouza via Decision (Unanimous) | |
| Time Round 3 @ 5:00 |
Referee Mario Yamasaki |
| Fight #2 | |
|---|---|
| Lightweight Bout | |
 |
|
| B.J. Penn | Joey Gilbert |
| B.J. Penn via TKO (Punches) | |
| Time Round 1 @ 4:57 |
Referee Mason White |
| Fight #3 | |
|---|---|
| Light Heavyweight Bout | |
|
 |
| Matt Lindland | Ricardo Almeida |
| Matt Lindland via Disqualification (Repeated Fouls) | |
| Time Round 3 @ 4:21 |
Referee Mario Yamasaki |
| Fight #4 | |
|---|---|
| Heavyweight Bout | |
 |
|
| Semmy Schilt | Pete Williams |
| Semmy Schilt via TKO (Kick to the Body and Punches) | |
| Time Round 2 @ 1:28 |
Referee John McCarthy |
| Fight #5 | |
|---|---|
| Welterweight Bout | |
|
 |
| Shonie Carter | Matt Serra |
| Shonie Carter via KO (Spinning Backfist) | |
| Time Round 3 @ 4:51 |
Referee Mario Yamasaki |
| Fight #6 | |
|---|---|
| Light Heavyweight Bout | |
 |
|
| Chuck Liddell | Kevin Randleman |
| Chuck Liddell via KO (Punches) | |
| Time Round 1 @ 1:18 |
Referee John McCarthy |
| Fight #7 | |
|---|---|
 UFC Welterweight Title Bout |
|
 |
|
| Carlos Newton | Pat Miletich |
| Carlos Newton via Submission (Bulldog Choke) | |
| Time Round 3 @ 2:50 |
Referee John McCarthy |
| Fight #8 | |
|---|---|
| UFC Heavyweight Title Bout |
|
 |
 |
| Randy Couture | Pedro Rizzo |
| Randy Couture via Decision (Unanimous) | |
| Time Round 5 @ 5:00 |
Referee John McCarthy |