| Event Details | |
|---|---|
| Organization | Ultimate Fighting Championship |
| Name | UFC 27 - Ultimate Bad Boyz |
| Date | September 22nd, 2000 |
| Venue | Lakefront Arena |
| Location | New Orleans, Louisiana, United States |
| Fight #1 | |
|---|---|
| Welterweight Bout | |
  |
|
| Brad Gumm | CJ Fernandes |
| Draw (Unanimous) | |
| Time Round 2 @ 5:00 |
Referee Mario Yamasaki |
| Fight #2 | |
|---|---|
| Heavyweight Bout | |
|
|
| Jeff Monson | Tim Lajcik |
| Jeff Monson via Decision (Unanimous) | |
| Time Round 2 @ 5:00 |
Referee Mario Yamasaki |
| Fight #3 | |
|---|---|
| Heavyweight Bout | |
 |
|
| Ian Freeman | Tedd Williams |
| Ian Freeman via Decision (Unanimous) | |
| Time Round 3 @ 5:00 |
Referee John McCarthy |
| Fight #4 | |
|---|---|
| Light Heavyweight Bout | |
 |
 |
| Yuki Kondo | Alexandre Dantas |
| Yuki Kondo via TKO (Punches) | |
| Time Round 3 @ 2:28 |
Referee John McCarthy |
| Fight #5 | |
|---|---|
| Welterweight Bout | |
|
|
| Fabiano Iha | LaVerne Clark |
| Fabiano Iha via Submission (Armbar) | |
| Time Round 1 @ 1:10 |
Referee Mario Yamasaki |
| Fight #6 | |
|---|---|
| Light Heavyweight Bout | |
|
|
| Jeremy Horn | Eugene Jackson |
| Jeremy Horn via Submission (Armbar) | |
| Time Round 1 @ 4:32 |
Referee Mario Yamasaki |
| Fight #7 | |
|---|---|
| Heavyweight Bout | |
|
|
| Maurice Smith | Bobby Hoffman |
| Maurice Smith via Decision (Majority) | |
| Time Round 3 @ 5:00 |
Referee John McCarthy |
| Fight #8 | |
|---|---|
| Heavyweight Bout | |
|
|
| Pedro Rizzo | Dan Severn |
| Pedro Rizzo via TKO (Submission to Punches) | |
| Time Round 1 @ 1:33 |
Referee John McCarthy |