Team fielding -- 3 MEGASPACEMEN
Regular season -- as of 4/5/1978
| Primary |
| Pos | S | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | | Roy Halladay | 32 | 32 | 231.3 | 20 | 36 | 0 | 6 | 56 | 1.000 | | 18 | 5 | .783 | 2 |
| | | Sonny Gray | 32 | 32 | 188.7 | 13 | 27 | 0 | 3 | 40 | 1.000 | | 21 | 5 | .808 | 3 |
| | | Kris Medlen | 39 | 32 | 171.3 | 12 | 15 | 5 | 1 | 32 | .844 | | 14 | 4 | .778 | 1 |
| | | Tim Stauffer | 74 | 0 | 139.7 | 14 | 17 | 0 | 0 | 31 | 1.000 | | 7 | 1 | .875 | 1 |
| | | Pascual Perez | 32 | 32 | 174.3 | 9 | 19 | 2 | 1 | 30 | .933 | | 13 | 4 | .765 | 0 |
| | | David Cone | 32 | 32 | 202.7 | 8 | 11 | 4 | 3 | 23 | .826 | | 22 | 7 | .759 | 0 |
| | | Steve Howe | 56 | 0 | 63.7 | 6 | 9 | 0 | 0 | 15 | 1.000 | | 3 | 0 | 1.000 | 0 |
| | | Greg Minton | 43 | 0 | 52.0 | 6 | 8 | 0 | 0 | 14 | 1.000 | | 4 | 0 | 1.000 | 0 |
| | | Adam Ottavino | 53 | 0 | 66.3 | 6 | 5 | 0 | 1 | 11 | 1.000 | | 11 | 0 | 1.000 | 0 |
| | | Randy Myers | 50 | 0 | 63.0 | 2 | 5 | 1 | 0 | 8 | .875 | | 2 | 2 | .500 | 2 |
| | | Wade Davis | 49 | 0 | 56.0 | 3 | 5 | 0 | 0 | 8 | 1.000 | | 5 | 2 | .714 | 0 |
| | | Gregg Olson | 9 | 0 | 12.7 | 1 | 3 | 1 | 0 | 5 | .800 | | 3 | 0 | 1.000 | 0 |
| | | Rob Murphy | 13 | 0 | 15.0 | 1 | 1 | 0 | 0 | 2 | 1.000 | | 2 | 1 | .667 | 0 |
| | | Total | 514 | 160 | 1436.7 | 101 | 161 | 13 | 15 | 275 | .953 | | 125 | 31 | .801 | 9 |
| | | | | | | | | | | | | | | | | |
| c | | Mike Piazza | 160 | 160 | 1430.7 | 1255 | 58 | 9 | 7 | 1322 | .993 | 18 | 125 | 31 | .801 | 1 |
| | | Dave Nilsson | 2 | 0 | 6.0 | 3 | 0 | 0 | 0 | 3 | 1.000 | 0 | 0 | 0 | .000 | 0 |
| | | Total | 162 | 160 | 1436.7 | 1258 | 58 | 9 | 7 | 1325 | .993 | 18 | 125 | 31 | .801 | 1 |
| | | | | | | | | | | | | | | | | |
| 1b | | Joey Votto | 160 | 160 | 1399.0 | 1393 | 103 | 7 | 117 | 1503 | .995 | | | | | |
| | | Dave Nilsson | 9 | 0 | 21.7 | 18 | 1 | 0 | 1 | 19 | 1.000 | | | | | |
| | | Cody Bellinger | 5 | 0 | 14.0 | 12 | 1 | 0 | 0 | 13 | 1.000 | | | | | |
| | | Jeff Bagwell | 2 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 176 | 160 | 1436.7 | 1423 | 105 | 7 | 118 | 1535 | .995 | | | | | |
| | | | | | | | | | | | | | | | | |
| 2b | | Bret Boone | 160 | 160 | 1379.3 | 262 | 490 | 7 | 92 | 759 | .991 | | | | | |
| | | Marcus Giles | 27 | 0 | 57.3 | 11 | 14 | 1 | 3 | 26 | .962 | | | | | |
| | | Total | 187 | 160 | 1436.7 | 273 | 504 | 8 | 95 | 785 | .990 | | | | | |
| | | | | | | | | | | | | | | | | |
| 3b | | Chipper Jones | 160 | 160 | 1436.7 | 102 | 272 | 23 | 24 | 397 | .942 | | | | | |
| | | Total | 160 | 160 | 1436.7 | 102 | 272 | 23 | 24 | 397 | .942 | | | | | |
| | | | | | | | | | | | | | | | | |
| ss | | Troy Tulowitzki | 160 | 160 | 1344.0 | 194 | 512 | 8 | 78 | 714 | .989 | | | | | |
| | | Jose Reyes | 49 | 0 | 90.7 | 4 | 30 | 1 | 3 | 35 | .971 | | | | | |
| | | Marcus Giles | 1 | 0 | 2.0 | 0 | 2 | 0 | 0 | 2 | 1.000 | | | | | |
| | | Total | 210 | 160 | 1436.7 | 198 | 544 | 9 | 81 | 751 | .988 | | | | | |
| | | | | | | | | | | | | | | | | |
| lf | | Ryan Klesko | 160 | 160 | 1376.7 | 281 | 10 | 6 | 3 | 297 | .980 | | | | | |
| | | Dave Nilsson | 30 | 0 | 52.3 | 14 | 0 | 0 | 0 | 14 | 1.000 | | | | | |
| | | Dave Parker | 1 | 0 | 4.7 | 0 | 0 | 1 | 0 | 1 | .000 | | | | | |
| | | Dave Henderson | 1 | 0 | 3.0 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 192 | 160 | 1436.7 | 296 | 10 | 7 | 3 | 313 | .978 | | | | | |
| | | | | | | | | | | | | | | | | |
| cf | | Cody Bellinger | 160 | 160 | 1405.7 | 361 | 8 | 1 | 1 | 370 | .997 | | | | | |
| | | Dave Henderson | 14 | 0 | 31.0 | 8 | 0 | 1 | 0 | 9 | .889 | | | | | |
| | | Total | 174 | 160 | 1436.7 | 369 | 8 | 2 | 1 | 379 | .995 | | | | | |
| | | | | | | | | | | | | | | | | |
| rf | | Ellis Burks | 160 | 160 | 1433.7 | 289 | 7 | 6 | 0 | 302 | .980 | | | | | |
| | | Dave Nilsson | 1 | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | J.D. Drew | 1 | 0 | 2.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Total | 162 | 160 | 1436.7 | 290 | 7 | 6 | 0 | 303 | .980 | | | | | |
| | | | | | | | | | | | | | | | | |
| | | Total | 160 | 160 | 1436.7 | 4310 | 1669 | 84 | 125 | 6063 | .986 | 18 | | | | |