| 2012 NL Leaders | |||||||||||||||||||
| Name | Age | Pos | Team | PA | AB | R | H | 2B | 3B | HR | RBI | BB | SO | SB | CS | AVG | OBP | SLG | OPS |
| Wesley Wright | 28 | P | Houston | 3 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 |
| Craig Stammen | 28 | P | Washington | 8 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 |
| Cristhian Martinez | 30 | P | Atlanta | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 |
| Michael Costanzo | 29 | RF | Cincinnati | 21 | 18 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 10 | 0 | 0 | 0.056 | 0.095 | 0.056 | 151 |
| Kristopher Negron | 26 | SS | Cincinnati | 5 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 0.250 | 0.400 | 0.250 | 650 |
| Santiago Casilla | 32 | P | San Francisco | 3 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0.333 | 0.333 | 0.333 | 666 |
| Tom Gorzelanny | 30 | P | Washington | 7 | 6 | 0 | 2 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0.333 | 0.429 | 0.333 | 762 |
| Tyler Cloyd | 25 | P | Philadelphia | 14 | 11 | 2 | 1 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 0 | 0.091 | 0.286 | 0.091 | 377 |
| Casey Coleman | Chi Cubs | 3 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0.333 | 0.333 | 0.333 | 666 | ||
| Adam Ottavino | 27 | P | Colorado | 11 | 9 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 0.111 | 0.091 | 0.111 | 202 |
| Christopher Schwinden | 26 | P | NY Mets | 4 | 4 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0.250 | 0.250 | 0.250 | 500 |
| Jeff Francis | 32 | P | Colorado | 39 | 31 | 2 | 2 | 0 | 0 | 0 | 0 | 2 | 8 | 0 | 1 | 0.065 | 0.103 | 0.065 | 168 |
| Steve Lerud | 28 | C | Philadelphia | 10 | 10 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0.200 | 0.200 | 0.200 | 400 |
| Eury Perez | 22 | CF | Washington | 5 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 4 | 0.200 | 0.200 | 0.200 | 400 |
| Jeffrey Locke | 25 | P | Pittsburgh | 11 | 11 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | 0.091 | 0.091 | 0.091 | 182 |
| Randy Wells | 30 | P | Chi Cubs | 4 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0.250 | 0.250 | 0.250 | 500 |
| Chase D'Arnaud | 26 | SS | Pittsburgh | 6 | 6 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 0.000 | 0.000 | 0.000 | 0 |
| Jean Boscan | 33 | C | Atlanta | 10 | 10 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0.200 | 0.200 | 0.200 | 400 |
| Eric Farris | 26 | 2B | Milwaukee | 9 | 8 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 2 | 0.125 | 0.222 | 0.125 | 347 |
| Livan Hernandez | 37 | P | Milwaukee | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 |
| Tim Stauffer | 30 | P | San Diego | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 |
| R.A. Dickey | 38 | P | NY Mets | 83 | 72 | 3 | 11 | 0 | 0 | 0 | 3 | 0 | 14 | 0 | 2 | 0.153 | 0.145 | 0.153 | 298 |
| Charlie Morton | 29 | P | Pittsburgh | 15 | 13 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 |
| Matthew Reynolds | Colorado | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 | ||
| Tyler Skaggs | Arizona | 9 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0.000 | 0.000 | 0.000 | 0 | ||
| Rob Scahill | Colorado | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0.000 | 0.333 | 0.000 | 333 | ||
| J.A. Happ | 30 | P | Houston | 40 | 32 | 2 | 3 | 0 | 0 | 0 | 1 | 3 | 16 | 0 | 0 | 0.094 | 0.150 | 0.094 | 244 |
| Andrew Werner | San Diego | 13 | 12 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 0.083 | 0.077 | 0.083 | 160 | ||
| Joe Saunders | 31 | P | Arizona | 46 | 35 | 1 | 3 | 0 | 0 | 0 | 1 | 3 | 7 | 0 | 0 | 0.086 | 0.130 | 0.086 | 216 |
| Carlos Torres | 30 | P | Colorado | 13 | 9 | 1 | 2 | 0 | 0 | 0 | 1 | 1 | 4 | 0 | 1 | 0.222 | 0.231 | 0.222 | 453 |
