During the 6,408 official at-bats in his career, Sievers has recorded a batting average of .266 and has racked up 1,707 hits. He has hit a home run 318 times, with 3,038 bases in total and a -.033 slugging percentage. Sievers has drawn a walk 845 times while striking out on 923 attempts. He has scored 948 runs in addition to having earned 1,147 RBIs. His OBP sits at .354 and he has earned a career OPS of .321.
Sievers has compiled 4 hits in 21 at-bats and has a batting average of .190. He has gotten a free base 4 times and is sitting with an OBP of .320. So far this season, Sievers is sitting with 3 runs, amassed 0 runs batted in and has 0 home runs. He has recorded an OPS of 0.558 with a SLG of .238. He has gone down swinging 3 times while having 5 total bases.
| Year | Team | BA | HR | H | BB | R | RBI | OBP | PA | AB | OPS | OPS+ | 2B | 3B | G | SLG | SB | CS | TB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Career | .267 | 318 | 1,703 | 841 | 945 | 1,147 | .354 | 7,349 | 6,387 | .829 | 124 | 292 | 42 | 1,887 | .475 | 14 | 19 | 3,033 | 920 | |
| 1965 | WSA | .190 | 0 | 4 | 4 | 3 | 0 | .320 | 25 | 21 | .558 | 63 | 1 | 0 | 12 | .238 | 0 | 0 | 5 | 3 |
| 1964 | TOT | .180 | 8 | 32 | 22 | 12 | 27 | .271 | 203 | 178 | .619 | 73 | 4 | 1 | 82 | .348 | 0 | 0 | 62 | 34 |
| 1964 | PHI | .183 | 4 | 22 | 13 | 7 | 16 | .265 | 136 | 120 | .590 | 66 | 3 | 1 | 49 | .325 | 0 | 0 | 39 | 20 |
| 1964 | WSA | .172 | 4 | 10 | 9 | 5 | 11 | .284 | 67 | 58 | .680 | 87 | 1 | 0 | 33 | .397 | 0 | 0 | 23 | 14 |
| 1963 | PHI | .240 | 19 | 108 | 43 | 46 | 82 | .308 | 509 | 450 | .725 | 108 | 19 | 2 | 138 | .418 | 0 | 2 | 188 | 72 |
| 1962 | PHI | .262 | 21 | 125 | 56 | 61 | 80 | .346 | 543 | 477 | .801 | 117 | 19 | 5 | 144 | .455 | 2 | 1 | 217 | 80 |
| 1961 | CHW | .295 | 27 | 145 | 61 | 76 | 92 | .377 | 563 | 492 | .913 | 144 | 26 | 6 | 141 | .537 | 1 | 0 | 264 | 62 |
| 1960 | CHW | .295 | 28 | 131 | 74 | 87 | 93 | .396 | 525 | 444 | .930 | 150 | 22 | 0 | 127 | .534 | 1 | 1 | 237 | 69 |
| 1959 | WSH | .242 | 21 | 93 | 53 | 55 | 49 | .333 | 444 | 385 | .788 | 115 | 19 | 0 | 115 | .455 | 1 | 1 | 175 | 62 |
| 1958 | WSH | .295 | 39 | 162 | 53 | 85 | 108 | .357 | 614 | 550 | .900 | 147 | 18 | 1 | 148 | .544 | 3 | 1 | 299 | 63 |
| 1957 | WSH | .301 | 42 | 172 | 76 | 99 | 114 | .388 | 657 | 572 | .967 | 164 | 23 | 5 | 152 | .579 | 1 | 1 | 331 | 55 |
| 1956 | WSH | .253 | 29 | 139 | 100 | 92 | 95 | .370 | 659 | 550 | .838 | 124 | 27 | 2 | 152 | .467 | 0 | 0 | 257 | 88 |
| 1955 | WSH | .271 | 25 | 138 | 73 | 74 | 106 | .364 | 591 | 509 | .853 | 133 | 20 | 8 | 144 | .489 | 1 | 2 | 249 | 66 |
| 1954 | WSH | .232 | 24 | 119 | 80 | 75 | 102 | .331 | 609 | 514 | .777 | 117 | 26 | 6 | 145 | .446 | 2 | 1 | 229 | 77 |
| 1953 | SLB | .270 | 8 | 77 | 32 | 37 | 35 | .344 | 323 | 285 | .751 | 100 | 15 | 0 | 92 | .407 | 0 | 1 | 116 | 47 |
| 1952 | SLB | .200 | 0 | 6 | 1 | 3 | 5 | .226 | 32 | 30 | .526 | 44 | 3 | 0 | 11 | .300 | 0 | 0 | 9 | 4 |
| 1951 | SLB | .225 | 1 | 20 | 9 | 10 | 11 | .303 | 99 | 89 | .606 | 62 | 2 | 1 | 31 | .303 | 0 | 0 | 27 | 21 |
| 1950 | SLB | .238 | 10 | 88 | 34 | 46 | 57 | .305 | 408 | 370 | .700 | 75 | 20 | 4 | 113 | .395 | 1 | 3 | 146 | 42 |
| 1949 | SLB | .306 | 16 | 144 | 70 | 84 | 91 | .398 | 545 | 471 | .869 | 125 | 28 | 1 | 140 | .471 | 1 | 5 | 222 | 75 |
