| Home | Teams and Players | Homerun Kings | Top Salaries | Most Runs Batted In | Hall of Fame |
| Name | Ryan Mattheus |
| Given Name | Ryan Arthur |
| Birth Date | 1983-11-10 |
| Birth City | Sacramento, CA |
| Height | 6'3" |
| Weight | 220 lbs. |
| Batting Hand | Right |
| Pitching Hand | Right |
| Alive | Yes |
| Age | 42 |
| Year | Team | Hits | At Bats | Home Runs | Runs Batted | Batting Average | Wins | Losses | # of Pitching Games | Strikeouts | # of Shutouts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 | Washington Nationals | 0 | 0 | 0 | 0 | NAN | 2 | 2 | 35 | 12 | 0 |
| 2012 | Washington Nationals | 0 | 1 | 0 | 0 | 0 | 5 | 3 | 66 | 41 | 0 |
| 2013 | Washington Nationals | 0 | 0 | 0 | 0 | NAN | 0 | 2 | 37 | 22 | 0 |
| 2014 | Washington Nationals | 0 | 0 | 0 | 0 | NAN | 0 | 0 | 7 | 4 | 0 |
| 2015 | Cincinnati Reds | 0 | 0 | 0 | 0 | NAN | 0 | 0 | 1 | 2 | 0 |
| 2015 | Cincinnati Reds | 0 | 0 | 0 | 0 | NAN | 2 | 4 | 57 | 35 | 0 |
| 2015 | Cincinnati Reds | 0 | 0 | 0 | 0 | NAN | 0 | 0 | 1 | 2 | 0 |
| 2015 | Cincinnati Reds | 0 | 0 | 0 | 0 | NAN | 2 | 4 | 57 | 35 | 0 |
| 2015 | Los Angeles Angels of Anaheim | 0 | 0 | 0 | 0 | NAN | 0 | 0 | 1 | 2 | 0 |
| 2015 | Los Angeles Angels of Anaheim | 0 | 0 | 0 | 0 | NAN | 2 | 4 | 57 | 35 | 0 |
| 2015 | Los Angeles Angels of Anaheim | 0 | 0 | 0 | 0 | NAN | 0 | 0 | 1 | 2 | 0 |
| 2015 | Los Angeles Angels of Anaheim | 0 | 0 | 0 | 0 | NAN | 2 | 4 | 57 | 35 | 0 |
| Year | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|
| 2011 | Pitcher | 0 | 0 | 2 |
| 2012 | Pitcher | 0 | 0 | 7 |
| 2013 | Pitcher | 0 | 1 | 3 |
| 2014 | Pitcher | 0 | 0 | 1 |
| 2015 | Pitcher | 0 | 0 | 0 |
| 2015 | Pitcher | 4 | 0 | 8 |