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| Name | Given Name | Age | Birthday | Height | Weight | Birth City | Birth Country | Batting Hand | Throwing Hand |
|---|---|---|---|---|---|---|---|---|---|
| Livan Hernandez | Eisler Livan | 51 | 02/20/1975 | 6'2" | 245 lbs | Villa Clara | Cuba | R | R |
| Year | Team | Games | At Bats | Hits | Home Runs | RBI | Batting AVG | Wins | Losses | Strikeouts | Shutouts | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1996 | Florida Marlins | 1 | 1 | 1 | 0 | 0 | 1.0000 | 0 | 0 | 2 | 0 | Pitcher | 0 | 0 | 0 |
| 1997 | Florida Marlins | 17 | 29 | 5 | 0 | 2 | 0.1724 | 9 | 3 | 72 | 0 | Pitcher | 1 | 4 | 16 |
| 1998 | Florida Marlins | 33 | 82 | 16 | 0 | 6 | 0.1951 | 10 | 12 | 162 | 0 | Pitcher | 0 | 3 | 35 |
| 1999 | Florida Marlins | 20 | 45 | 13 | 2 | 7 | 0.2889 | 5 | 9 | 97 | 0 | Pitcher | 1 | 1 | 21 |
| 1999 | San Francisco Giants | 10 | 18 | 4 | 0 | 1 | 0.2222 | 3 | 3 | 47 | 0 | Pitcher | 0 | 1 | 13 |
| 2000 | San Francisco Giants | 33 | 89 | 21 | 1 | 9 | 0.2360 | 17 | 11 | 165 | 2 | Pitcher | 0 | 4 | 44 |
| 2001 | San Francisco Giants | 34 | 81 | 24 | 1 | 8 | 0.2963 | 13 | 15 | 138 | 0 | Pitcher | 0 | 2 | 44 |
| 2002 | San Francisco Giants | 33 | 64 | 15 | 0 | 6 | 0.2344 | 12 | 16 | 134 | 3 | Pitcher | 3 | 7 | 53 |
| 2003 | Montreal Expos | 33 | 74 | 14 | 0 | 6 | 0.1892 | 15 | 10 | 178 | 0 | Pitcher | 1 | 6 | 47 |
| 2004 | Montreal Expos | 35 | 81 | 20 | 1 | 10 | 0.2469 | 11 | 15 | 186 | 2 | Pitcher | 2 | 10 | 61 |
| 2005 | Washington Nationals | 35 | 82 | 20 | 2 | 7 | 0.2439 | 15 | 10 | 147 | 0 | Pitcher | 1 | 7 | 45 |
| 2006 | Arizona Diamondbacks | 24 | 45 | 12 | 1 | 6 | 0.2667 | 9 | 8 | 89 | 0 | Pitcher | 2 | 4 | 23 |
| 2006 | Washington Nationals | 10 | 23 | 2 | 0 | 0 | 0.0870 | 4 | 5 | 39 | 0 | Pitcher | 2 | 0 | 10 |
| 2007 | Arizona Diamondbacks | 33 | 75 | 16 | 1 | 5 | 0.2133 | 11 | 11 | 90 | 0 | Pitcher | 0 | 2 | 39 |
| 2008 | Colorado Rockies | 23 | 2 | 1 | 0 | 1 | 0.5000 | 10 | 8 | 54 | 0 | Pitcher | 1 | 0 | 22 |
| 2008 | Minnesota Twins | 8 | 17 | 4 | 0 | 1 | 0.2353 | 3 | 3 | 13 | 0 | Pitcher | 0 | 0 | 9 |
| 2009 | New York Mets | 23 | 40 | 5 | 0 | 0 | 0.1250 | 7 | 8 | 75 | 0 | Pitcher | 0 | 3 | 29 |
| 2009 | Washington Nationals | 8 | 14 | 3 | 0 | 0 | 0.2143 | 2 | 4 | 27 | 0 | Pitcher | 0 | 0 | 7 |
| 2010 | Washington Nationals | 33 | 61 | 9 | 1 | 3 | 0.1475 | 10 | 12 | 114 | 1 | Pitcher | 0 | 3 | 39 |
| 2011 | Washington Nationals | 29 | 46 | 10 | 0 | 7 | 0.2174 | 8 | 13 | 99 | 1 | Pitcher | 1 | 7 | 33 |
| 2012 | Atlanta Braves | 18 | 1 | 0 | 0 | 0 | 0.0000 | 1 | 1 | 19 | 0 | Pitcher | 0 | 0 | 6 |
| 2012 | Milwaukee Brewers | 26 | 3 | 0 | 0 | 0 | 0.0000 | 3 | 0 | 29 | 0 | Pitcher | 0 | 1 | 5 |