Petrocelli has accumulated a batting average of .249 for his career in baseball in addition to 670 runs scored and an OPS of .329. Over the course of his time in the league, he approached the plate 6,450 times and has come through with a hit 1,403 times. His slugging percentage is -.002 in addition to earning 2,332 bases. In his career, Petrocelli has drilled 213 balls out of the park while driving in 797 runs. He has gone down on strikes 962 times and has gotten a free base on 695 occasions, contributing to a .331 OBP.
So far this season, Petrocelli has scored 17 runs, accounted for 24 runs batted in and has hit 3 home runs. He has fanned 36 times while racking up 69 bases in total. He has compiled an OPS of 0.594 with a slugging percentage of .288. He has taken a base 34 times and sports an on-base percentage of .307. Petrocelli is sitting with 51 base hits out of 240 at-bats and has a batting average of .213.
| Year | Team | BA | HR | H | BB | R | RBI | OBP | PA | AB | OPS | OPS+ | 2B | 3B | G | SLG | SB | CS | TB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | .251 | 210 | 1,352 | 661 | 653 | 773 | .332 | 6,171 | 5,390 | .752 | 108 | 237 | 22 | 1,553 | .420 | 10 | 22 | 2,263 | 926 | |
| 1976 | BOS | .213 | 3 | 51 | 34 | 17 | 24 | .307 | 279 | 240 | .594 | 67 | 7 | 1 | 85 | .288 | 0 | 5 | 69 | 36 |
| 1975 | BOS | .239 | 7 | 96 | 41 | 31 | 59 | .310 | 454 | 402 | .644 | 76 | 15 | 1 | 115 | .333 | 0 | 2 | 134 | 66 |
| 1974 | BOS | .267 | 15 | 121 | 48 | 53 | 76 | .336 | 509 | 454 | .757 | 110 | 23 | 1 | 129 | .421 | 1 | 0 | 191 | 74 |
| 1973 | BOS | .244 | 13 | 87 | 47 | 44 | 45 | .333 | 407 | 356 | .729 | 100 | 13 | 1 | 100 | .396 | 0 | 0 | 141 | 64 |
| 1972 | BOS | .240 | 15 | 125 | 78 | 62 | 75 | .339 | 607 | 521 | .702 | 104 | 15 | 2 | 147 | .363 | 0 | 1 | 189 | 91 |
| 1971 | BOS | .251 | 28 | 139 | 91 | 82 | 89 | .354 | 661 | 553 | .815 | 123 | 24 | 4 | 158 | .461 | 2 | 0 | 255 | 108 |
| 1970 | BOS | .261 | 29 | 152 | 67 | 82 | 103 | .334 | 664 | 583 | .807 | 114 | 31 | 3 | 157 | .473 | 1 | 1 | 276 | 82 |
| 1969 | BOS | .297 | 40 | 159 | 98 | 92 | 97 | .403 | 643 | 535 | .992 | 168 | 32 | 2 | 154 | .589 | 3 | 5 | 315 | 68 |
| 1968 | BOS | .234 | 12 | 95 | 31 | 41 | 46 | .292 | 451 | 406 | .667 | 96 | 17 | 2 | 123 | .374 | 0 | 1 | 152 | 73 |
| 1967 | BOS | .259 | 17 | 127 | 49 | 53 | 66 | .330 | 556 | 491 | .750 | 113 | 24 | 2 | 142 | .420 | 2 | 4 | 206 | 93 |
| 1966 | BOS | .238 | 18 | 124 | 41 | 58 | 59 | .295 | 573 | 522 | .678 | 85 | 20 | 1 | 139 | .383 | 1 | 1 | 200 | 99 |
| 1965 | BOS | .232 | 13 | 75 | 36 | 38 | 33 | .309 | 363 | 323 | .721 | 99 | 15 | 2 | 103 | .412 | 0 | 2 | 133 | 71 |
| 1963 | BOS | .250 | 0 | 1 | 0 | 0 | 1 | .250 | 4 | 4 | .750 | 102 | 1 | 0 | 1 | .500 | 0 | 0 | 2 | 1 |
