EliteXC: Unfinished Business was held by EliteXC on July 26, 2008 at Stockton Arena in Stockton, CA.
The show was officially announced during the Showtime broadcast of EliteXC: Return of the King and the main event featured a rematch between Middleweight Champion Robbie Lawler and Scott Smith, whose match on the initial EliteXC: Primetime broadcast was stopped due to an unintentional eye poke. This event was the second EliteXC event to air on CBS. In addition, the events preliminary bouts aired on Showtime at 8pm EST, one hour before the 9pm EST start time on CBS.
| Match | Winner | Loser | Method | Round | Time |
| 1 | Drew Montgomery | Brandon Tarns | TKO (Doctor’s Stoppage- Cut) | 3 | 4:23 |
| 2 | Carl Seumanutafa | Mike Cook | KO (Slam) | 1 | 1:21 |
| 3 | Wilson Reis | Bryan Caraway | Decision (Unanimous) | 3 | 5:00 |
| 4 | Rafael Cavalcante | Travis Galbraith | TKO (Strikes) | 1 | 3:01 |
| 5 | Antonio Silva | Justin Eilers | TKO (Knees and Punches) | 2 | 0:19 |
| 6 | Cristiane Santos | Shayna Baszler | TKO (Punches) | 2 | 2:48 |
| 7 | Jake Shields | Nick Thompson | Submission (Guillotine Choke) | 1 | 1:03 |
| 8 | Nick Diaz | Thomas Denny | TKO (Punches) | 2 | 0:30 |
| 9 | Robbie Lawler | Scott Smith | TKO (Kicks and Punches) | 2 | 2:35 |
| 10 | David Douglas | Marlon Matias | TKO (Punches) | 1 | 0:12 |
| 11 | Anthony Ruiz | Jeremy Freitag | Decision (Unanimous) | 3 | 5:00 |
EliteXC: Unfinished Business Payroll:
Robbie Lawler: $90,000 (which included a $45,000 win bonus)
def. Scott Smith: $14,000
Nick Diaz: $60,000 (no win bonus)
def. Thomas Denny: $8,500
Jake Shields: $45,000 ($10,000 win bonus)
def. Nick Thompson: $25,000
Cristiane Cyborg: $6,000 ($3,000 win bonus)
def. Shayna Baszler: $8,000
Antonio Silva: $200,000 ($100,000 win bonus)
def. Justin Eilers: $20,000
Rafael “Feijao” Cavalcante: $20,000 ($10,000 win bonus)
def. Travis Galbraith: $5,000
Wilson Reis: $5,000 ($2,500 win bonus)
def. Bryan Caraway: $2,000
Anthony Ruiz: $5,001 ($3,00O win bonus)
def. Jeremy Freitag: $2,5000
David Douglas: $4,000 ($1,500 win bonus)
def. Marlon Matias: $2,500
Carl Seumanutafa: $4,000 ($2,000 win bonus)
def. Mike Cook: $2000
Drew Montgomery: $3,000 ($1,500 win bonus)
def. Brandon Tarn: $2,000
EliteXC: Unfinished Business Payroll:
Robbie Lawler: $90,000 (which included a $45,000 win bonus)
def. Scott Smith: $14,000
Nick Diaz: $60,000 (no win bonus)
def. Thomas Denny: $8,500
Jake Shields: $45,000 ($10,000 win bonus)
def. Nick Thompson: $25,000
Cristiane Cyborg: $6,000 ($3,000 win bonus)
def. Shayna Baszler: $8,000
Antonio Silva: $200,000 ($100,000 win bonus)
def. Justin Eilers: $20,000
Rafael "Feijao" Cavalcante: $20,000 ($10,000 win bonus)
def. Travis Galbraith: $5,000
Wilson Reis: $5,000 ($2,500 win bonus)
def. Bryan Caraway: $2,000
Anthony Ruiz: $5,001 ($3,00O win bonus)
def. Jeremy Freitag: $2,5000
David Douglas: $4,000 ($1,500 win bonus)
def. Marlon Matias: $2,500
Carl Seumanutafa: $4,000 ($2,000 win bonus)
def. Mike Cook: $2000
Drew Montgomery: $3,000 ($1,500 win bonus)
def. Brandon Tarn: $2,000