PacificSource Civil War Series
The PacificSource Civil War Series is a college sports series between the Oregon Ducks and the Oregon State Beavers. The schools started to officially keep track of the overall series at the start of the 1999–2000 school year with the introduction of the Northwest Dodge Dealers Civil War Series. To determine the overall winner, points are awarded to schools depending on the outcomes of Civil War games in various sports. PacificSource will sponsor the series through 2015.
The current point system grants:
- 3 points to the winner of the football game
- 1 point to the winner of each men's basketball game
- 1 point to the winner of each women's basketball game
- 2 points to the winner of the best of three series in baseball
- 1 point to the winner of the women's soccer game
- 1 point to the winner of each men's golf match
- 1 point to the winner of each women's golf match
- 2 points to the winner of the best of three series in softball
- 1 point to the winner of each women's volleyball game
The record as of the end of the 2008–2009 school year has the Beavers with 4 wins, the Ducks with 4 wins, and two ties. The winners by year have been:
| Academic Year | Winner | Points |
| 1999–2000 | Oregon | 11–6 |
| 2000–2001 | Tie | 8.5–8.5 |
| 2001–2002 | Oregon State | 9–8 |
| 2002–2003 | Oregon | 9–8 |
| 2003–2004 | Oregon | 11–6 |
| 2004–2005 | Oregon State | 12–5 |
| 2005–2006 | Oregon State | 12–5 |
| 2006–2007 | Oregon | 9–8 |
| 2007–2008 | Oregon State | 9–8 |
| 2008–2009 | Tie | 9.5–9.5 |
| 2009–2010 | Oregon | ?-? |
| 2010–2011 | Oregon | ?-? |
The all-time point breakdown as of the end of the 2008–09 season is 88.0–85.0 in favor of Oregon State.