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Fielding Effects


All raw data supplied courtesy of Baseball-Reference.com.
They do a wonderful job, and deserve your support.

Fielding Effects

Through games of Wednesday, 12 August 2026.
All results are from true, unadjusted data.

The Table shows two lines for each team. The first is their actual stats to date, from Games through Strikeouts; the stats FEbat and FErun—Fielding Efficiency on batters and Fielding Efficiency on runners—are explained on our page here about Team Defense. The OR stat on this line is the TPP-projected Runs the team would be expected to have yielded to date (for an explanation of the TPP, see our page here about basic Baseball Analysis). The R stat is the TOP-projected team Runs scored to date. The Δ stats are immaterial for this line.

The second Table line for each team is their calculated stats if their defense were MLB-average. The FEbat and FErun values on this line are their MLB-average values (averaged over the three recent years 2017 - 2019). The OR stat on this line is the TPP-projected Runs the team would be expected to have yielded to date based on the average-fielding stat values. And on this line, the Δ stats show the differences in Wins that having an MLB-average defense would gain or lose (the ΔW stat is for the year to date, while the ΔWyr is for a full 162-game season.

Thus, this table shows us what a given team’s defense is doing to help or hurt it. As you see, the average difference is less than 3 wins a season, and that figure is heavily weighted by a very few very bad defenses. (Without the three exceptionally worst, the average difference is just 2 wins a year, and the widest swings from assuming an MLB-average defense are 6 lost by good-fielding teams and gained by poor-fielding teams, with 2/3 of the teams within a couple of wins of average-fielding results.

(Those interested in the tiresome details of the calculations can follow that link to a full explanation.)

We cannot easily disentangle pitching from fielding, because fielding affects pitching results. But, painting with a very broad brush, we can say that at the extremes the fielding-attributable difference in runs allowed is in the range of being equivalent to perhaps a quarter to a third of a run on the team ERA, with the more normal variations amounting to about an eighth of a run. Pretty clearly, on a team level, fielding runs a poor second to pitching in significance for runs allowed, and thus a very poor third to offense. (Recall that offense and defense are each 50% of the game, and defense is part pitching and part fielding.) Since the extremes of team ERA cover about 2.75 runs (in 2020, 3.02 to 5.75) while the extremes of fielding, even including all the outliers, equate to maybe 0.60 on an ERA, their ratio is—and again, this is very, very broad-brush thinking—around 9:2, making fielding perhaps at most around 20% of defense and thus pitching about 80%, meaning that offense is 50% of the game, pitching is 40%, and fielding is at most around 10%, and so of much less importance than either offense or pitching. (Quite as we said almost 40 years ago.)

— Place your cursor over any column heading to see what it signifies. —

Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Rays,
with actual fielding		 120 1070.0 4405 4001 305 45 15 37 2 916 183 13 148 977 73.77% 8.01% 469 548 --- ---
Rays,
assuming average fielding		 120 1070.0 4342 3944 301 44 15 36 2 903 180 13 146 963 71.32% 8.21% 486 548 -2 -3
Dodgers,
with actual fielding		 121 1068.2 4425 3968 375 50 15 17 0 864 171 10 143 1081 74.03% 7.30% 448 588 --- ---
Dodgers,
assuming average fielding		 121 1068.2 4362 3912 370 49 15 17 0 852 169 10 141 1066 71.32% 8.21% 467 588 -2 -3
Cubs,
with actual fielding		 121 1081.2 4523 4085 357 45 16 19 1 1001 141 10 181 929 72.76% 9.87% 521 639 --- ---
Cubs,
assuming average fielding		 121 1081.2 4459 4027 352 44 16 19 1 987 139 10 178 916 71.32% 8.21% 538 639 -2 -2
Braves,
with actual fielding		 121 1077.0 4510 4005 417 42 12 31 3 914 150 16 138 1040 72.96% 8.58% 483 558 --- ---
Braves,
assuming average fielding		 121 1077.0 4446 3948 411 41 12 31 3 901 148 16 136 1025 71.32% 8.21% 494 558 -2 -2
Yankees,
with actual fielding		 120 1072.2 4450 3988 368 45 13 30 6 895 168 15 120 1081 72.61% 8.20% 445 528 --- ---
Yankees,
assuming average fielding		 120 1072.2 4387 3931 363 44 13 30 6 882 166 15 118 1066 71.32% 8.21% 448 528 0 -1
Astros,
with actual fielding		 122 1081.1 4665 4044 504 73 17 27 0 958 152 17 164 1061 72.27% 8.56% 563 548 --- ---
Astros,
assuming average fielding		 122 1081.1 4599 3987 497 72 17 27 0 944 150 17 162 1046 71.32% 8.21% 568 548 0 -1
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Tigers,
with actual fielding		 120 1063.2 4443 3976 369 51 23 24 0 915 177 17 116 994 72.57% 8.21% 454 545 --- ---
Tigers,
assuming average fielding		 120 1063.2 4380 3920 364 50 23 24 0 902 174 17 114 980 71.32% 8.21% 458 545 0 -1
Diamondbacks,
with actual fielding		 122 1084.0 4580 4122 359 46 16 33 4 1036 204 25 140 828 72.03% 9.35% 529 531 --- ---
Diamondbacks,
assuming average fielding		 122 1084.0 4515 4063 354 45 16 33 4 1021 201 25 138 816 71.32% 8.21% 533 531 0 0
Marlins,
with actual fielding		 121 1062.0 4482 3980 401 61 9 28 3 915 174 18 120 1012 72.44% 8.28% 484 550 --- ---
Marlins,
assuming average fielding		 121 1062.0 4418 3923 395 60 9 28 3 902 172 18 118 998 71.32% 8.21% 484 550 0 0
Brewers,
with actual fielding		 121 1082.1 4465 3998 381 50 16 20 0 881 165 11 124 1176 72.31% 9.31% 433 567 --- ---
Brewers,
assuming average fielding		 121 1082.1 4402 3941 376 49 16 20 0 868 163 11 122 1159 71.32% 8.21% 433 567 0 0
White Sox,
with actual fielding		 119 1062.1 4541 3972 431 72 24 37 5 946 177 17 128 1011 71.73% 8.45% 516 530 --- ---
White Sox,
assuming average fielding		 119 1062.1 4476 3916 425 71 24 36 5 933 174 17 126 997 71.32% 8.21% 511 530 +1 +1
Reds,
with actual fielding		 119 1057.0 4630 4020 493 56 15 39 7 988 171 20 151 953 71.82% 6.95% 586 504 --- ---
Reds,
assuming average fielding		 119 1057.0 4564 3963 486 55 15 38 7 974 169 20 149 939 71.32% 8.21% 578 504 +1 +1
Padres,
with actual fielding		 122 1079.0 4580 4062 426 50 14 25 3 993 176 15 135 992 71.15% 9.50% 513 507 --- ---
Padres,
assuming average fielding		 122 1079.0 4515 4004 420 49 14 25 3 979 173 15 133 978 71.32% 8.21% 508 507 +1 +1
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Red Sox,
with actual fielding		 120 1067.1 4467 4032 339 47 18 30 1 969 187 8 117 1029 70.96% 8.20% 468 525 --- ---
Red Sox,
assuming average fielding		 120 1067.1 4404 3975 334 46 18 30 1 955 184 8 115 1014 71.32% 8.21% 454 525 +2 +2
Angels,
with actual fielding		 121 1065.1 4644 4019 513 64 10 35 3 946 172 16 131 1083 71.40% 6.82% 546 481 --- ---
Angels,
assuming average fielding		 121 1065.1 4578 3962 506 63 10 35 3 933 170 16 129 1068 71.32% 8.21% 530 481 +2 +2
Giants,
with actual fielding		 121 1068.0 4591 4027 450 51 22 38 3 995 179 25 113 911 71.20% 9.52% 532 510 --- ---
Giants,
assuming average fielding		 121 1068.0 4526 3970 444 50 22 37 3 981 176 25 111 898 71.32% 8.21% 516 510 +2 +2
Blue Jays,
with actual fielding		 122 1086.1 4627 4084 452 29 23 36 3 981 167 9 128 1067 71.07% 8.37% 516 477 --- ---
Blue Jays,
assuming average fielding		 122 1086.1 4561 4026 446 29 23 35 3 967 165 9 126 1052 71.32% 8.21% 500 477 +1 +2
Royals,
with actual fielding		 122 1071.1 4646 4102 456 46 14 28 0 1072 226 20 156 901 70.33% 10.33% 592 510 --- ---
Royals,
assuming average fielding		 122 1071.1 4580 4044 450 45 14 28 0 1057 223 20 154 888 71.32% 8.21% 571 510 +2 +3
Mariners,
with actual fielding		 121 1067.1 4443 4034 303 53 20 31 2 988 196 10 131 1026 70.73% 9.42% 479 486 --- ---
Mariners,
assuming average fielding		 121 1067.1 4380 3977 299 52 20 31 2 974 193 10 129 1011 71.32% 8.21% 463 486 +2 +3
Cardinals,
with actual fielding		 121 1080.1 4622 4102 412 58 11 35 4 1036 209 10 118 923 70.45% 9.86% 530 510 --- ---
Cardinals,
assuming average fielding		 121 1080.1 4556 4044 406 57 11 35 4 1021 206 10 116 910 71.32% 8.21% 510 510 +3 +3
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Rangers,
with actual fielding		 121 1060.1 4530 4080 358 50 14 25 3 1006 185 20 147 1013 70.97% 6.25% 530 507 --- ---
Rangers,
assuming average fielding		 121 1060.1 4466 4022 353 49 14 25 3 992 182 20 145 999 71.32% 8.21% 510 507 +2 +3
Nationals,
with actual fielding		 122 1088.2 4761 4200 428 65 20 45 3 1090 199 8 172 922 71.05% 7.83% 626 623 --- ---
Nationals,
assuming average fielding		 122 1088.2 4693 4140 422 64 20 44 3 1031 188 8 170 909 71.32% 8.21% 602 623 +2 +3
Guardians,
with actual fielding		 121 1071.2 4541 4046 398 46 16 35 0 966 187 15 138 1123 70.80% 7.72% 513 496 --- ---
Guardians,
assuming average fielding		 121 1071.2 4476 3989 392 45 16 35 0 952 184 15 136 1107 71.32% 8.21% 492 496 +2 +4
Twins,
with actual fielding		 122 1076.2 4692 4126 445 55 25 38 3 1037 210 15 141 1007 70.54% 6.46% 580 553 --- ---
Twins,
assuming average fielding		 122 1076.2 4625 4067 439 54 25 37 3 1022 207 15 139 993 71.32% 8.21% 552 553 +3 +4
Mets,
with actual fielding		 122 1085.2 4662 4124 434 58 19 26 1 986 212 18 132 1095 70.97% 7.57% 534 507 --- ---
Mets,
assuming average fielding		 122 1085.2 4596 4065 428 57 19 26 1 972 209 18 130 1079 71.32% 8.21% 508 507 +3 +4
Athletics,
with actual fielding		 121 1072.1 4793 4191 482 60 11 48 1 1132 222 19 191 1024 690% 7.24% 693 524 --- ---
Athletics,
assuming average fielding		 121 1072.1 4725 4131 475 59 11 47 1 1116 219 19 188 1009 71.32% 8.21% 639 524 +5 +5
Orioles,
with actual fielding		 121 1074.2 4618 4118 403 33 13 49 2 1043 217 21 129 959 70.44% 8.41% 556 521 --- ---
Orioles,
assuming average fielding		 121 1074.2 4552 4059 397 33 13 48 2 1028 214 21 127 945 71.32% 8.21% 523 521 +3 +5
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Pirates,
with actual fielding		 122 1087.2 4700 4142 447 68 12 27 4 1000 225 13 128 1127 70.20% 7.23% 544 596 --- ---
Pirates,
assuming average fielding		 122 1087.2 4633 4083 441 67 12 27 4 986 222 13 126 1111 71.32% 8.21% 510 596 +4 +5
Phillies,
with actual fielding		 122 1081.2 4632 4160 370 55 15 32 0 1041 176 22 144 1196 68.71% 7.10% 548 530 --- ---
Phillies,
assuming average fielding		 122 1081.2 4566 4101 365 54 15 32 0 1026 173 22 142 1179 71.32% 8.21% 498 530 +6 +7
Rockies,
with actual fielding		 121 1062.2 4753 4227 396 48 22 58 2 1218 273 40 168 830 68.27% 7.51% 715 560 --- ---
Rockies,
assuming average fielding		 121 1062.2 4685 4167 390 47 22 57 2 1201 269 39 166 818 71.32% 8.21% 641 560 +6 +8

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This page was last modified on Thursday, 13 August 2026, at 5:31 am Pacific Time.