Over the course of the 2,331 at-bats in his pro career, Duffy has accumulated a batting average of .277 in addition to 646 hits. He has hit a home run 31 times, with 859 bases in total and a .369 slugging percentage. Duffy has recorded a free base 176 times while being called out on strikes on 438 attempts. He has compiled 272 runs in addition to having earned 231 RBIs. His on-base rate is .335 and he holds a career OPS of .704.
For the season, Duffy has notched 2 runs, accounted for 0 RBI and has hit 0 home runs. He has walked 2 times and is sitting with an OBP of .500. Duffy is sitting with 2 hits out of 7 at-bats and has a batting average of .286. He has been struck out 1 times while tallying 2 total bases. He has recorded an OPS of 0.786 in addition to a slugging % of .286.
| Year | Team | BA | HR | H | BB | R | RBI | OBP | PA | AB | OPS | OPS+ | 2B | 3B | G | SLG | SB | CS | TB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | .277 | 31 | 646 | 176 | 272 | 231 | .335 | 2,559 | 2,331 | .704 | N/A | 102 | 9 | 708 | .369 | 41 | 14 | 859 | 438 | |
| 2024 | TEX | 1.000 | 0 | 2 | 0 | 7 | 0 | .286 | 4 | 10 | .286 | 1 | 2 | 0 | 0 | .500 | 0 | 0 | 135 | 2 |
| 2023 | KCR | .251 | 2 | 48 | 12 | 17 | 16 | .306 | 209 | 191 | .631 | 74 | 8 | 0 | 78 | .325 | 1 | 0 | 62 | 39 |
| 2022 | LAA | .250 | 2 | 57 | 17 | 14 | 16 | .308 | 247 | 228 | .619 | 77 | 8 | 0 | 77 | .311 | 0 | 0 | 71 | 50 |
| 2021 | CHC | .287 | 5 | 83 | 25 | 45 | 30 | .357 | 322 | 289 | .738 | 100 | 12 | 0 | 97 | .381 | 8 | 1 | 110 | 63 |
| 2019 | TBR | .252 | 1 | 37 | 19 | 12 | 12 | .343 | 169 | 147 | .670 | 83 | 8 | 0 | 46 | .327 | 0 | 1 | 48 | 29 |
| 2018 | TBR | .294 | 4 | 148 | 47 | 59 | 44 | .361 | 560 | 503 | .727 | 104 | 22 | 1 | 132 | .366 | 12 | 6 | 184 | 93 |
| 2016 | TOT | .258 | 5 | 86 | 23 | 41 | 28 | .310 | 366 | 333 | .668 | 82 | 14 | 2 | 91 | .357 | 8 | 5 | 119 | 53 |
| 2016 | SFG | .253 | 4 | 65 | 20 | 32 | 21 | .313 | 286 | 257 | .671 | 82 | 11 | 2 | 70 | .358 | 8 | 4 | 92 | 40 |
| 2016 | TBR | .276 | 1 | 21 | 3 | 9 | 7 | .300 | 80 | 76 | .655 | 81 | 3 | 0 | 21 | .355 | 0 | 1 | 27 | 13 |
| 2015 | SFG | .295 | 12 | 169 | 30 | 77 | 77 | .334 | 612 | 573 | .762 | 108 | 28 | 6 | 149 | .428 | 12 | 0 | 245 | 96 |
| 2014 | SFG | .267 | 0 | 16 | 1 | 5 | 8 | .302 | 64 | 60 | .602 | 74 | 2 | 0 | 34 | .300 | 0 | 1 | 18 | 14 |