For his professional baseball career, McQuinn has drilled 135 baseballs out of the park while knocking in 796 runs. During his time in professional baseball, he approached the plate 6,613 times and got on base with a base hit 1,589 times. He has recorded a slugging percentage of .019 in addition to earning 2,437 bases. He has gone down on strikes 636 times and has walked on 716 occasions, which contributes in part to a .357 on-base %. McQuinn has raked .276 in his time in baseball with 832 scored runs and an OPS of .376.
McQuinn has accounted for 1 total bases with 1 hits out of 12 at-bats. He has notched 0 runs for the season and has drilled 0 balls out of the park. He has amassed a batting average of .083 with an OPS of .396. He has accumulated an OBP of .313 as well as 4 walks and 2 strikeouts. So far this season, George McQuinn has knocked in 2 runs and also has earned a slugging percentage of .083.
| Year | Team | BA | HR | H | BB | R | RBI | OBP | PA | AB | OPS | OPS+ | 2B | 3B | G | SLG | SB | CS | TB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | .276 | 135 | 1,588 | 712 | 832 | 794 | .357 | 6,597 | 5,747 | .781 | 110 | 315 | 64 | 1,550 | .424 | 32 | 32 | 2,436 | 634 | |
| 1948 | NYY | .248 | 11 | 75 | 40 | 33 | 41 | .336 | 346 | 302 | .757 | 102 | 11 | 4 | 94 | .421 | 0 | 2 | 127 | 38 |
| 1947 | NYY | .304 | 13 | 157 | 78 | 84 | 80 | .395 | 609 | 517 | .832 | 132 | 24 | 3 | 144 | .437 | 0 | 2 | 226 | 66 |
| 1946 | PHA | .225 | 3 | 109 | 64 | 47 | 35 | .317 | 556 | 484 | .633 | 79 | 23 | 6 | 136 | .316 | 4 | 2 | 153 | 62 |
| 1945 | SLB | .277 | 7 | 134 | 65 | 69 | 61 | .364 | 561 | 483 | .762 | 116 | 31 | 3 | 139 | .398 | 1 | 1 | 192 | 51 |
| 1944 | SLB | .250 | 11 | 129 | 85 | 83 | 72 | .357 | 623 | 516 | .733 | 104 | 26 | 3 | 146 | .376 | 4 | 3 | 194 | 74 |
| 1943 | SLB | .243 | 12 | 109 | 56 | 53 | 74 | .327 | 516 | 449 | .701 | 102 | 19 | 2 | 125 | .374 | 4 | 3 | 168 | 65 |
| 1942 | SLB | .262 | 12 | 145 | 60 | 86 | 78 | .335 | 631 | 554 | .737 | 105 | 32 | 5 | 145 | .403 | 1 | 1 | 223 | 77 |
| 1941 | SLB | .297 | 18 | 147 | 74 | 93 | 80 | .388 | 574 | 495 | .867 | 125 | 28 | 4 | 130 | .479 | 5 | 4 | 237 | 30 |
| 1940 | SLB | .279 | 16 | 166 | 57 | 78 | 84 | .343 | 659 | 594 | .802 | 104 | 39 | 10 | 151 | .460 | 3 | 3 | 273 | 58 |
| 1939 | SLB | .316 | 20 | 195 | 65 | 101 | 94 | .383 | 702 | 617 | .898 | 126 | 37 | 13 | 154 | .515 | 6 | 5 | 318 | 42 |
| 1938 | SLB | .324 | 12 | 195 | 58 | 100 | 82 | .384 | 674 | 602 | .861 | 115 | 42 | 7 | 148 | .477 | 4 | 5 | 287 | 49 |
| 1936 | CIN | .201 | 0 | 27 | 10 | 5 | 13 | .262 | 146 | 134 | .546 | 51 | 3 | 4 | 38 | .284 | 0 | 1 | 38 | 22 |
