| Date | Transaction |
| 02-28-2079 | Pat O'Brien has retired from football. |
| 05-02-2077 | The San Jose Titans have waived Pat O'Brien. |
| 08-24-2076 | The San Jose Titans have moved Pat O'Brien and Bob Floyd to the active roster. |
| 05-03-2076 | The San Jose Titans have moved George Thornton to the active roster. The San Jose Titans have moved Joe Sieracki, Pat O'Brien, and Art Bishop to the inactive roster. |
| 09-02-2075 | The San Jose Titans have moved Jon Holtzman, Art Bishop, Pat O'Brien, Alvin Davis, and Joe Sieracki to the active roster. The San Jose Titans have moved Buster Brown, Tracy Talbott, and Barry Hearden to the inactive roster. |
| 04-28-2075 | The San Jose Titans have moved Jon Holtzman and Pat O'Brien to the inactive roster. |
| 10-22-2074 | The San Jose Vikings have moved Pat O'Brien, Vaughn Branch, and Max Jacobson to the active roster. The San Jose Vikings have moved Jack Downey and Barry Hearden to the inactive roster. |
| 10-15-2074 | The San Jose Vikings have moved Pat O'Brien to the inactive roster. |
| 10-14-2074 | Pat O'Brien of the San Jose Vikings is injured with a hip contusion and is expected to be out for approximately 4 days. |
| 09-03-2074 | The San Jose Vikings have moved Pat O'Brien to the active roster. The San Jose Vikings have moved Nolan Jolly to the inactive roster. |
| 04-29-2074 | The San Jose Vikings have moved Len Lee and Steve Barnes to the active roster. The San Jose Vikings have moved Pat O'Brien, Earl McCain, Matt Wells, and Bruce Smith to the inactive roster. |
| 09-03-2073 | The San Jose Vikings have moved Pat O'Brien and Marvin Martin to the active roster. |
| 04-30-2073 | The San Jose Vikings have moved Steve Lewis and Pat O'Brien to the inactive roster. |
| 09-05-2072 | The San Jose Vikings have moved John Diggs, Barry Hearden, Art Bishop, and Pat O'Brien to the active roster. The San Jose Vikings have moved Buster Brown and Max Jacobson to the inactive roster. |
| 05-01-2072 | The San Jose Vikings have moved Steve Lewis and Pat O'Brien to the inactive roster. |
| 09-07-2071 | The San Jose Vikings have moved Pat O'Brien, Art Bishop, John Diggs, Reggie Witcher, and Barry Hearden to the active roster. The San Jose Vikings have moved Dar White, O.P. Mitchell, and Nolan Jolly to the inactive roster. |
| 05-03-2071 | The San Jose Vikings have moved Pat O'Brien to the inactive roster. |
| 12-22-2070 | The San Jose Czars have moved Eddie Siith, Pat O'Brien, Tim Studaway, and Barry Hearden to the active roster. The San Jose Czars have moved Bobby Harper, Steve Lewis, Art Bishop, and Jon Trafton to the inactive roster. |
| 12-15-2070 | The San Jose Czars have moved Bill Smith, O.P. Mitchell, and Dar White to the active roster. The San Jose Czars have moved Barry Hearden, Freddie Nelson, and Pat O'Brien to the inactive roster. |
| 11-10-2070 | The San Jose Czars have moved Pat O'Brien to the active roster. The San Jose Czars have moved Jim Olszewski to the inactive roster. |
| 11-03-2070 | The San Jose Czars have moved Bobby Harper, Jim Ayers, Jim Prioleau, and Jim Olszewski to the active roster. The San Jose Czars have moved Dar White, Pat O'Brien, Curt Snyder, and Reggie Witcher to the inactive roster. |
| 11-02-2070 | Pat O'Brien of the San Jose Czars is injured with a mild concussion and is expected to be out for approximately 4 days. |
| 09-01-2070 | The San Jose Czars have moved Louis Ogrin, Bobby Harper, Pat O'Brien, Art Bishop, Herman Harvey, John Diggs, Jon Trafton, Reggie Witcher, and Barry Hearden to the active roster. The San Jose Czars have moved Dar White, O.P. Mitchell, Nolan Jolly, and Charles Morris to the inactive roster. |
| 04-27-2070 | The San Jose Czars have moved Preston Rachal to the active roster. The San Jose Czars have moved Steve Lewis, Pat O'Brien, Donnie Steele, John Diggs, and Barry Hearden to the inactive roster. |
| 09-02-2069 | The San Jose Czars have moved Pat O'Brien, Louis Ogrin, Steve Lewis, and Carroll Nicholes to the active roster. |
| 08-05-2069 | The San Jose Czars have moved Steve Lewis and Pat O'Brien to the inactive roster. |
| 12-30-2068 | Pat O'Brien of the San Jose Czars is injured with a knee derangement and is expected to be out for approximately 23 days. |
| 09-02-2068 | The San Jose Czars have moved Steve Lewis, Pat O'Brien, Art Bishop, Russ Poteat, John Diggs, Reggie Witcher, and Barry Hearden to the active roster. The San Jose Czars have moved Jim Ayers and Chuck Jacquet to the inactive roster. |
| 04-29-2068 | The San Jose Czars have moved Jim Ayers and Troy Land to the active roster. The San Jose Czars have moved Pat O'Brien, Barry Hearden, and Ted Harris to the inactive roster. |
| 09-04-2067 | The San Jose Czars have moved Steve Lewis, Louis Ogrin, Russ Poteat, and Pat O'Brien to the active roster. |
| 08-15-2067 | The San Jose Czars have moved Pat O'Brien and Reggie Witcher to the inactive roster. |
| 09-27-2066 | The San Jose Czars have moved Pat O'Brien to the active roster. The San Jose Czars have moved Ryan Childs to the inactive roster. |
| 09-20-2066 | The San Jose Czars have moved Barry Hearden, Jeff Edgar, and Denver Boettcher to the active roster. The San Jose Czars have moved Gaylon Beasley and Pat O'Brien to the inactive roster. |
| 09-12-2066 | The San Jose Czars have moved Pat O'Brien to the active roster. The San Jose Czars have moved Denver Boettcher to the inactive roster. |
| 09-05-2066 | The San Jose Czars have moved Steve Lewis, Donnie Steele, and Barry Hearden to the active roster. The San Jose Czars have moved Pat O'Brien to the inactive roster. |
| 08-09-2066 | The San Jose Czars have moved Steve Lewis and Pat O'Brien to the active roster. The San Jose Czars have moved Donnie Steele, Iolas Long, George Daniels, and Barry Hearden to the inactive roster. |
| 09-03-2063 | Pat O'Brien has been moved from RB to T by the Charleston State University Ospreys. |
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