Team fielding -- 2021 Belleville Thunderbolts
Regular season -- as of 10/3/2021
| Primary |
| Pos | S | Name | G | GS | INN | PO | A | E | DP | TC | PCT | PB | SB | CS | SB% | PK |
| p | | Kyle Hendricks | 27 | 27 | 160.7 | 10 | 19 | 0 | 0 | 29 | 1.000 | | 10 | 4 | .714 | 2 |
| | | Merrill Kelly | 33 | 33 | 186.0 | 10 | 19 | 0 | 1 | 29 | 1.000 | | 8 | 4 | .667 | 1 |
| | | Nick Pivetta | 33 | 33 | 174.7 | 8 | 12 | 7 | 2 | 27 | .741 | | 8 | 4 | .667 | 1 |
| | | Zac Gallen | 33 | 33 | 180.3 | 9 | 9 | 4 | 1 | 22 | .818 | | 11 | 9 | .550 | 2 |
| | | Corey Kluber | 33 | 33 | 180.3 | 9 | 8 | 3 | 0 | 20 | .850 | | 12 | 4 | .750 | 2 |
| | | Diego Castillo | 63 | 0 | 78.0 | 9 | 5 | 1 | 2 | 15 | .933 | | 1 | 0 | 1.000 | 0 |
| | | Phil Bickford | 71 | 0 | 92.0 | 7 | 3 | 2 | 0 | 12 | .833 | | 6 | 0 | 1.000 | 0 |
| | | Tyler Duffey | 50 | 0 | 64.7 | 4 | 4 | 2 | 2 | 10 | .800 | | 2 | 1 | .667 | 1 |
| | | Michael Fulmer | 66 | 0 | 73.3 | 3 | 7 | 0 | 0 | 10 | 1.000 | | 4 | 1 | .800 | 0 |
| | | Trevor May | 58 | 0 | 73.3 | 7 | 2 | 0 | 0 | 9 | 1.000 | | 4 | 1 | .800 | 0 |
| | | Craig Stammen | 76 | 0 | 88.3 | 3 | 6 | 0 | 1 | 9 | 1.000 | | 8 | 1 | .889 | 1 |
| | | Caleb Thielbar | 60 | 0 | 68.7 | 0 | 3 | 0 | 0 | 3 | 1.000 | | 3 | 1 | .750 | 0 |
| | f | Codi Heuer | 1 | 0 | 2.3 | 1 | 0 | 0 | 0 | 1 | 1.000 | | 0 | 0 | .000 | 0 |
| | f | Spencer Howard | 1 | 0 | 2.7 | 0 | 0 | 0 | 0 | 0 | .000 | | 0 | 0 | .000 | 0 |
| | | Other | 7 | 7 | 52.7 | 1 | 2 | 0 | 0 | 3 | 1.000 | | 2 | 1 | .667 | 0 |
| | | Total | 612 | 166 | 1478.0 | 81 | 99 | 19 | 9 | 199 | .905 | | 79 | 31 | .718 | 10 |
| | | | | | | | | | | | | | | | | |
| c | | James McCann | 92 | 90 | 783.0 | 781 | 33 | 2 | 1 | 816 | .998 | 7 | 49 | 15 | .766 | 0 |
| | | Tucker Barnhart | 85 | 76 | 695.0 | 712 | 23 | 1 | 2 | 736 | .999 | 6 | 30 | 16 | .652 | 0 |
| | | Total | 177 | 166 | 1478.0 | 1493 | 56 | 3 | 3 | 1552 | .998 | 13 | 79 | 31 | .718 | 0 |
| | | | | | | | | | | | | | | | | |
| 1b | | Jose Abreu | 162 | 162 | 1424.0 | 1149 | 95 | 7 | 101 | 1251 | .994 | | | | | |
| | f | Mark Canha | 4 | 4 | 34.0 | 29 | 7 | 0 | 2 | 36 | 1.000 | | | | | |
| | | James McCann | 7 | 0 | 18.0 | 9 | 1 | 1 | 3 | 11 | .909 | | | | | |
| | | Tucker Barnhart | 1 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 174 | 166 | 1478.0 | 1188 | 103 | 8 | 106 | 1299 | .994 | | | | | |
| | | | | | | | | | | | | | | | | |
| 2b | | Jonathan India | 125 | 125 | 1086.7 | 201 | 322 | 8 | 74 | 531 | .985 | | | | | |
| | | Whit Merrifield | 40 | 40 | 339.3 | 51 | 102 | 2 | 17 | 155 | .987 | | | | | |
| | | Jazz Chisholm | 19 | 0 | 41.0 | 5 | 10 | 0 | 1 | 15 | 1.000 | | | | | |
| | | Luis Urias | 1 | 1 | 11.0 | 1 | 3 | 0 | 0 | 4 | 1.000 | | | | | |
| | | Total | 185 | 166 | 1478.0 | 258 | 437 | 10 | 92 | 705 | .986 | | | | | |
| | | | | | | | | | | | | | | | | |
| 3b | | Kyle Seager | 128 | 127 | 1136.7 | 77 | 201 | 9 | 20 | 287 | .969 | | | | | |
| | | Jeimer Candelario | 38 | 35 | 307.3 | 22 | 56 | 2 | 5 | 80 | .975 | | | | | |
| | | Luis Urias | 1 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | .000 | | | | | |
| | | Other | 4 | 4 | 33.0 | 3 | 9 | 0 | 2 | 12 | 1.000 | | | | | |
| | | Total | 171 | 166 | 1478.0 | 102 | 266 | 11 | 27 | 379 | .971 | | | | | |
| | | | | | | | | | | | | | | | | |
| ss | | Willy Adames | 124 | 120 | 1079.0 | 140 | 331 | 15 | 53 | 486 | .969 | | | | | |
| | | Luis Urias | 48 | 46 | 397.0 | 61 | 99 | 15 | 15 | 175 | .914 | | | | | |
| | | Jazz Chisholm | 2 | 0 | 2.0 | 0 | 1 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 174 | 166 | 1478.0 | 201 | 431 | 30 | 68 | 662 | .955 | | | | | |
| | | | | | | | | | | | | | | | | |
| lf | | Robbie Grossman | 164 | 163 | 1452.0 | 351 | 10 | 0 | 1 | 361 | 1.000 | | | | | |
| | | Wil Myers | 4 | 3 | 26.0 | 9 | 0 | 0 | 0 | 9 | 1.000 | | | | | |
| | | Total | 168 | 166 | 1478.0 | 360 | 10 | 0 | 1 | 370 | 1.000 | | | | | |
| | | | | | | | | | | | | | | | | |
| cf | | Steven Duggar | 166 | 166 | 1473.0 | 429 | 11 | 9 | 0 | 449 | .980 | | | | | |
| | | Michael Conforto | 1 | 0 | 5.0 | 1 | 0 | 0 | 0 | 1 | 1.000 | | | | | |
| | | Total | 167 | 166 | 1478.0 | 430 | 11 | 9 | 0 | 450 | .980 | | | | | |
| | | | | | | | | | | | | | | | | |
| rf | | Michael Conforto | 127 | 127 | 1112.0 | 241 | 7 | 7 | 0 | 255 | .973 | | | | | |
| | | Wil Myers | 53 | 39 | 366.0 | 80 | 3 | 0 | 0 | 83 | 1.000 | | | | | |
| | | Total | 180 | 166 | 1478.0 | 321 | 10 | 7 | 0 | 338 | .979 | | | | | |
| | | | | | | | | | | | | | | | | |
| | | Total | 166 | 166 | 1478.0 | 4434 | 1423 | 97 | 111 | 5954 | .984 | 13 | | | | |