Harrelson has recorded a walk 662 times while being called out on strikes on 676 occasions. His on-base percentage sits at .329 and he has earned a career OPS of .457. He has accumulated 565 runs and also has 276 runs batted in. He has gone deep 8 times, with 1,425 total bases and also a .128 slugging percentage. In the 4,924 at-bats in his MLB career, Harrelson has accrued an average at the plate of .237 in addition to having 1,169 hits.
Harrelson has earned 49 hits out of 180 at-bats for an average of .272. He has gotten a free base 29 times and has recorded an on-base percentage of .373. On the year, Harrelson has compiled 26 runs, recorded 9 RBI and has 1 home runs. He has recorded an OPS of 0.695 as well as a slugging % of .322. He has been struck out 23 times while amassing 58 bases in total.
| Year | Team | BA | HR | H | BB | R | RBI | OBP | PA | AB | OPS | OPS+ | 2B | 3B | G | SLG | SB | CS | TB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | .236 | 7 | 1,120 | 633 | 539 | 267 | .327 | 5,516 | 4,744 | .616 | 76 | 136 | 45 | 1,533 | .288 | 127 | 60 | 1,367 | 653 | |
| 1980 | TEX | .272 | 1 | 49 | 29 | 26 | 9 | .373 | 219 | 180 | .695 | 97 | 6 | 0 | 87 | .322 | 4 | 4 | 58 | 23 |
| 1979 | PHI | .282 | 0 | 20 | 13 | 7 | 7 | .395 | 87 | 71 | .762 | 107 | 6 | 0 | 53 | .366 | 3 | 3 | 26 | 14 |
| 1978 | PHI | .214 | 0 | 22 | 18 | 16 | 9 | .331 | 127 | 103 | .554 | 58 | 1 | 0 | 71 | .223 | 5 | 2 | 23 | 21 |
| 1977 | NYM | .178 | 1 | 48 | 27 | 25 | 12 | .255 | 305 | 269 | .482 | 34 | 6 | 2 | 107 | .227 | 5 | 4 | 61 | 28 |
| 1976 | NYM | .234 | 1 | 84 | 63 | 34 | 26 | .351 | 432 | 359 | .649 | 92 | 12 | 4 | 118 | .298 | 9 | 3 | 107 | 56 |
| 1975 | NYM | .219 | 0 | 16 | 12 | 5 | 3 | .329 | 87 | 73 | .576 | 66 | 2 | 0 | 34 | .247 | 0 | 0 | 18 | 13 |
| 1974 | NYM | .227 | 1 | 75 | 71 | 48 | 13 | .366 | 412 | 331 | .632 | 80 | 10 | 0 | 106 | .266 | 9 | 4 | 88 | 39 |
| 1973 | NYM | .258 | 0 | 92 | 48 | 35 | 20 | .348 | 408 | 356 | .657 | 86 | 12 | 3 | 106 | .309 | 5 | 1 | 110 | 49 |
| 1972 | NYM | .215 | 1 | 90 | 58 | 54 | 24 | .313 | 490 | 418 | .578 | 68 | 10 | 4 | 115 | .266 | 12 | 4 | 111 | 57 |
| 1971 | NYM | .252 | 0 | 138 | 53 | 55 | 32 | .319 | 618 | 547 | .622 | 79 | 16 | 6 | 142 | .303 | 28 | 7 | 166 | 59 |
| 1970 | NYM | .243 | 1 | 137 | 95 | 72 | 42 | .351 | 682 | 564 | .659 | 79 | 18 | 8 | 157 | .309 | 23 | 4 | 174 | 74 |
| 1969 | NYM | .248 | 0 | 98 | 54 | 42 | 24 | .341 | 457 | 395 | .647 | 82 | 11 | 6 | 123 | .306 | 1 | 3 | 121 | 54 |
| 1968 | NYM | .219 | 0 | 88 | 29 | 38 | 14 | .273 | 437 | 402 | .524 | 59 | 7 | 3 | 111 | .251 | 4 | 5 | 101 | 68 |
| 1967 | NYM | .254 | 1 | 137 | 48 | 59 | 28 | .317 | 603 | 540 | .621 | 81 | 16 | 4 | 151 | .304 | 12 | 13 | 164 | 64 |
| 1966 | NYM | .222 | 0 | 22 | 13 | 20 | 4 | .313 | 113 | 99 | .636 | 80 | 2 | 4 | 33 | .323 | 7 | 3 | 32 | 23 |
| 1965 | NYM | .108 | 0 | 4 | 2 | 3 | 0 | .154 | 39 | 37 | .343 | -2 | 1 | 1 | 19 | .189 | 0 | 0 | 7 | 11 |
