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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 Sunday, 27 September 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
Cubs,
with actual fielding		 162 1447.0 6062 5454 500 62 20 25 1 1323 185 14 231 1260 72.75% 9.66% 688 852 --- ---
Cubs,
assuming average fielding		 162 1447.0 5997 5396 495 61 20 25 1 1309 183 14 229 1247 71.23% 8.13% 711 852 -3 -3
Rays,
with actual fielding		 162 1443.0 5939 5403 409 52 25 48 2 1235 239 17 201 1322 73.84% 7.58% 629 723 --- ---
Rays,
assuming average fielding		 162 1443.0 5875 5345 405 51 25 47 2 1222 236 17 199 1308 71.23% 8.13% 653 723 -2 -2
Yankees,
with actual fielding		 161 1441.1 5973 5367 488 55 19 37 7 1204 218 26 165 1450 72.72% 7.98% 599 706 --- ---
Yankees,
assuming average fielding		 161 1441.1 5909 5310 483 54 19 37 7 1191 216 26 163 1434 71.23% 8.13% 607 706 -1 -1
Dodgers,
with actual fielding		 162 1435.2 5921 5318 480 68 24 31 0 1159 231 16 172 1521 73.18% 7.35% 582 791 --- ---
Dodgers,
assuming average fielding		 162 1435.2 5858 5261 475 67 24 31 0 1147 229 16 170 1505 71.23% 8.13% 596 791 -1 -1
Tigers,
with actual fielding		 162 1434.0 6006 5355 507 79 32 33 0 1240 241 21 167 1312 72.77% 8.83% 631 720 --- ---
Tigers,
assuming average fielding		 162 1434.0 5942 5298 502 78 32 33 0 1227 238 21 165 1298 71.23% 8.13% 641 720 -1 -1
Braves,
with actual fielding		 162 1438.0 6037 5382 529 61 23 39 3 1259 204 26 185 1350 72.52% 8.20% 654 711 --- ---
Braves,
assuming average fielding		 162 1438.0 5972 5324 523 60 23 39 3 1246 202 26 183 1336 71.23% 8.13% 666 711 -1 -1
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Diamondbacks,
with actual fielding		 162 1442.0 6110 5483 483 67 25 48 4 1368 265 32 186 1140 72.06% 8.61% 707 717 --- ---
Diamondbacks,
assuming average fielding		 162 1442.0 6045 5424 478 66 25 47 4 1353 262 32 184 1128 71.23% 8.13% 711 717 0 0
Astros,
with actual fielding		 162 1437.0 6179 5382 650 89 25 33 0 1276 214 24 204 1411 71.97% 8.57% 729 729 --- ---
Astros,
assuming average fielding		 162 1437.0 6113 5324 643 88 25 33 0 1262 212 24 202 1396 71.23% 8.13% 731 729 0 0
Marlins,
with actual fielding		 162 1428.1 6084 5387 561 80 15 38 3 1266 234 25 171 1323 72.25% 7.60% 682 735 --- ---
Marlins,
assuming average fielding		 162 1428.1 6019 5329 555 79 15 38 3 1252 231 25 169 1309 71.23% 8.13% 682 735 0 0
Brewers,
with actual fielding		 162 1446.2 5991 5362 518 67 18 25 1 1186 218 15 171 1544 72.49% 8.89% 592 790 --- ---
Brewers,
assuming average fielding		 162 1446.2 5927 5305 512 66 18 25 1 1173 216 15 169 1527 71.23% 8.13% 596 790 0 0
Padres,
with actual fielding		 162 1436.1 6072 5397 554 67 17 33 4 1304 229 22 180 1315 71.56% 9.31% 671 709 --- ---
Padres,
assuming average fielding		 162 1436.1 6007 5339 548 66 17 33 4 1290 227 22 178 1301 71.23% 8.13% 674 709 0 0
White Sox,
with actual fielding		 162 1440.2 6167 5427 571 91 28 45 5 1317 260 22 180 1337 71.45% 8.53% 712 734 --- ---
White Sox,
assuming average fielding		 162 1440.2 6101 5369 565 90 28 45 5 1303 257 22 178 1323 71.23% 8.13% 702 734 +1 +1
Red Sox,
with actual fielding		 162 1440.0 6028 5422 469 66 28 42 1 1307 252 9 153 1398 70.72% 8.91% 630 698 --- ---
Red Sox,
assuming average fielding		 162 1440.0 5963 5364 464 65 28 42 1 1293 249 9 151 1383 71.23% 8.13% 609 698 +2 +2
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Royals,
with actual fielding		 162 1424.1 6170 5456 582 71 21 40 0 1424 293 24 210 1173 70.63% 9.97% 783 695 --- ---
Royals,
assuming average fielding		 162 1424.1 6104 5398 576 70 21 40 0 1409 290 24 208 1160 71.23% 8.13% 762 695 +2 +2
Giants,
with actual fielding		 162 1430.0 6167 5422 596 65 28 53 3 1345 232 34 160 1204 71.37% 8.84% 728 673 --- ---
Giants,
assuming average fielding		 162 1430.0 6101 5364 590 64 28 52 3 1331 230 34 158 1191 71.23% 8.13% 709 673 +2 +2
Blue Jays,
with actual fielding		 162 1436.0 6097 5383 594 44 27 45 4 1264 211 11 167 1410 71.71% 8.02% 663 649 --- ---
Blue Jays,
assuming average fielding		 162 1436.0 6032 5325 588 44 27 45 4 1250 209 11 165 1395 71.23% 8.13% 653 649 +2 +2
Nationals,
with actual fielding		 162 1437.0 6270 5502 605 82 24 54 3 1393 259 12 218 1283 71.19% 7.94% 802 776 --- ---
Nationals,
assuming average fielding		 162 1437.0 6203 5443 599 81 24 53 3 1332 248 12 216 1269 71.23% 8.13% 778 776 +2 +2
Reds,
with actual fielding		 162 1433.1 6349 5507 668 87 24 54 9 1401 255 30 214 1293 70.89% 6.91% 844 680 --- ---
Reds,
assuming average fielding		 162 1433.1 6281 5448 661 86 24 53 9 1386 252 30 212 1279 71.23% 8.13% 813 680 +3 +3
Guardians,
with actual fielding		 162 1437.2 6084 5414 530 74 22 44 0 1286 251 17 175 1530 70.57% 7.81% 670 687 --- ---
Guardians,
assuming average fielding		 162 1437.2 6019 5356 524 73 22 44 0 1272 248 17 173 1514 71.23% 8.13% 643 687 +3 +3
Angels,
with actual fielding		 162 1430.1 6195 5407 639 81 16 49 3 1298 232 22 164 1439 70.69% 7.57% 717 632 --- ---
Angels,
assuming average fielding		 162 1430.1 6129 5349 632 80 16 48 3 1284 230 22 162 1424 71.23% 8.13% 685 632 +3 +3
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Mets,
with actual fielding		 162 1441.2 6158 5459 552 79 28 39 1 1307 258 25 184 1450 71.15% 7.61% 701 693 --- ---
Mets,
assuming average fielding		 162 1441.2 6092 5401 546 78 28 39 1 1293 255 25 182 1434 71.23% 8.13% 678 693 +3 +3
Rangers,
with actual fielding		 162 1419.1 6085 5460 497 68 18 37 5 1353 261 25 190 1337 70.84% 6.31% 713 678 --- ---
Rangers,
assuming average fielding		 162 1419.1 6020 5402 492 67 18 37 5 1339 258 25 188 1323 71.23% 8.13% 687 678 +3 +3
Twins,
with actual fielding		 162 1435.2 6234 5502 581 73 28 46 4 1368 282 19 186 1381 70.52% 6.27% 756 720 --- ---
Twins,
assuming average fielding		 162 1435.2 6167 5443 575 72 28 46 4 1353 279 19 184 1366 71.23% 8.13% 720 720 +4 +4
Pirates,
with actual fielding		 162 1445.0 6188 5455 582 90 19 38 4 1291 287 16 155 1496 70.58% 7.72% 682 764 --- ---
Pirates,
assuming average fielding		 162 1445.0 6122 5397 576 89 19 38 4 1277 284 16 153 1480 71.23% 8.13% 649 764 +4 +4
Mariners,
with actual fielding		 162 1430.1 6047 5466 441 70 26 42 2 1372 250 20 194 1392 70.16% 8.40% 701 674 --- ---
Mariners,
assuming average fielding		 162 1430.1 5982 5408 436 69 26 42 2 1357 247 20 192 1377 71.23% 8.13% 668 674 +4 +4
Cardinals,
with actual fielding		 162 1442.2 6204 5486 564 75 22 50 7 1393 285 15 158 1278 70.04% 9.20% 722 685 --- ---
Cardinals,
assuming average fielding		 162 1442.2 6138 5427 558 74 22 49 7 1378 282 15 156 1264 71.23% 8.13% 688 685 +4 +4
Orioles,
with actual fielding		 161 1436.1 6152 5493 535 50 17 54 3 1386 267 28 169 1305 70.24% 8.76% 723 688 --- ---
Orioles,
assuming average fielding		 161 1436.1 6086 5434 529 49 17 53 3 1371 264 28 167 1291 71.23% 8.13% 683 688 +4 +5
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Phillies,
with actual fielding		 162 1438.1 6124 5512 484 69 21 37 1 1366 228 24 191 1577 69.10% 7.56% 706 696 --- ---
Phillies,
assuming average fielding		 162 1438.1 6058 5453 479 68 21 37 1 1351 226 24 189 1560 71.23% 8.13% 650 696 +6 +6
Athletics,
with actual fielding		 162 1430.0 6390 5597 637 75 16 62 3 1523 294 25 247 1356 68.66% 7.65% 920 701 --- ---
Athletics,
assuming average fielding		 162 1430.0 6322 5537 630 74 16 61 3 1507 291 25 244 1341 71.23% 8.13% 841 701 +7 +7
Rockies,
with actual fielding		 162 1421.2 6366 5669 531 61 26 77 2 1635 358 55 227 1113 68.23% 7.32% 963 746 --- ---
Rockies,
assuming average fielding		 162 1421.2 6298 5608 525 60 26 76 2 1618 354 54 225 1101 71.23% 8.13% 865 746 +8 +8

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This page was last modified on Tuesday, 29 September 2026, at 5:30 am Pacific Time.