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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, 28 September 2025.
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
Rangers,
with actual fielding		 162 1443.0 5942 5373 463 50 19 36 1 1235 229 16 172 1344 72.83% 9.08% 600 661 --- ---
Rangers,
assuming average fielding		 162 1443.0 5788 5234 451 49 19 35 1 1203 223 16 168 1309 71.1% 8.29% 620 661 -2 -2
Padres,
with actual fielding		 162 1433.0 5981 5314 535 65 22 42 3 1197 202 16 178 1425 73.01% 8.04% 619 687 --- ---
Padres,
assuming average fielding		 162 1433.0 5826 5176 521 63 21 41 3 1166 197 16 173 1388 71.1% 8.29% 637 687 -2 -2
Cubs,
with actual fielding		 162 1435.0 5904 5383 405 53 20 41 2 1284 221 23 202 1265 72.79% 9.71% 631 797 --- ---
Cubs,
assuming average fielding		 162 1435.0 5751 5243 394 52 19 40 2 1251 215 22 197 1232 71.1% 8.29% 652 797 -2 -2
Yankees,
with actual fielding		 162 1439.2 6080 5414 557 57 13 34 5 1239 244 22 175 1440 72.33% 7.07% 655 855 --- ---
Yankees,
assuming average fielding		 162 1439.2 5922 5274 543 56 13 33 5 1207 238 21 170 1403 71.1% 8.29% 656 855 -1 -1
Reds,
with actual fielding		 162 1435.0 6035 5399 494 67 26 45 4 1260 284 18 190 1380 72.56% 7.34% 671 687 --- ---
Reds,
assuming average fielding		 162 1435.0 5878 5259 481 65 25 44 4 1227 277 18 185 1344 71.1% 8.29% 676 687 -1 -1
Astros,
with actual fielding		 162 1442.0 6041 5408 508 58 23 40 4 1257 242 16 199 1504 71.92% 7.45% 669 696 --- ---
Astros,
assuming average fielding		 162 1442.0 5884 5268 495 56 22 39 4 1224 236 16 194 1465 71.1% 8.29% 668 696 0 0
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 1436.2 5997 5430 478 45 17 25 2 1308 256 26 171 1271 71.79% 9.25% 631 657 --- ---
Royals,
assuming average fielding		 162 1436.2 5841 5289 466 44 17 24 2 1274 249 25 167 1238 71.1% 8.29% 634 657 0 0
Dodgers,
with actual fielding		 162 1441.0 6077 5380 563 65 21 48 0 1250 251 24 175 1505 71.48% 7.83% 659 803 --- ---
Dodgers,
assuming average fielding		 162 1441.0 5919 5240 548 63 20 47 0 1218 244 23 170 1466 71.1% 8.29% 653 803 0 0
Brewers,
with actual fielding		 162 1442.0 6041 5378 534 66 22 37 4 1237 226 17 168 1432 72.14% 8.29% 624 776 --- ---
Brewers,
assuming average fielding		 162 1442.0 5884 5239 520 64 21 36 4 1205 220 17 164 1395 71.1% 8.29% 628 776 0 0
Pirates,
with actual fielding		 162 1430.2 5982 5374 473 73 18 43 1 1267 285 21 153 1314 71.93% 8.30% 627 592 --- ---
Pirates,
assuming average fielding		 162 1430.2 5827 5235 461 71 18 42 1 1234 278 20 149 1280 71.1% 8.29% 628 592 0 0
Rays,
with actual fielding		 162 1431.1 5960 5369 474 67 13 34 3 1273 225 14 205 1416 71.86% 10.38% 666 704 --- ---
Rays,
assuming average fielding		 162 1431.1 5805 5230 462 65 13 33 3 1240 219 14 200 1379 71.1% 8.29% 666 704 0 0
Athletics,
with actual fielding		 162 1437.2 6232 5509 570 80 16 55 2 1387 290 19 222 1323 71.13% 7.43% 795 750 --- ---
Athletics,
assuming average fielding		 162 1437.2 6070 5366 555 78 16 54 2 1351 282 19 216 1289 71.1% 8.29% 776 750 +1 +1
Guardians,
with actual fielding		 162 1442.0 6054 5414 527 54 19 39 1 1291 247 18 169 1381 71.39% 9.39% 651 612 --- ---
Guardians,
assuming average fielding		 162 1442.0 5897 5274 513 53 19 38 1 1258 241 18 165 1345 71.1% 8.29% 644 612 +1 +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		 162 1436.1 6034 5428 485 59 22 36 4 1309 247 21 187 1375 71.41% 8.73% 665 724 --- ---
Tigers,
assuming average fielding		 162 1436.1 5878 5287 472 57 21 35 4 1275 241 20 182 1339 71.1% 8.29% 657 724 +1 +1
Marlins,
with actual fielding		 162 1443.1 6185 5543 507 71 10 50 4 1376 280 23 199 1294 71.36% 7.06% 758 705 --- ---
Marlins,
assuming average fielding		 162 1443.1 6025 5399 494 69 10 49 4 1340 273 22 194 1260 71.1% 8.29% 741 705 +1 +1
Braves,
with actual fielding		 162 1438.0 6116 5460 530 70 15 41 0 1348 245 23 197 1416 70.51% 8.30% 718 724 --- ---
Braves,
assuming average fielding		 162 1438.0 5957 5318 516 68 15 40 0 1313 239 22 192 1379 71.1% 8.29% 699 724 +2 +2
Red Sox,
with actual fielding		 162 1448.1 6150 5482 530 73 14 41 10 1333 215 9 164 1361 70.86% 9.43% 678 771 --- ---
Red Sox,
assuming average fielding		 162 1448.1 5991 5340 516 71 14 40 10 1298 209 9 160 1326 71.1% 8.29% 655 771 +2 +2
White Sox,
with actual fielding		 162 1416.0 6124 5394 595 72 12 45 6 1337 288 23 189 1286 71.13% 8.80% 756 623 --- ---
White Sox,
assuming average fielding		 162 1416.0 5965 5254 580 70 12 44 6 1302 281 22 184 1253 71.1% 8.29% 735 623 +2 +2
Mariners,
with actual fielding		 162 1462.2 6134 5530 454 74 27 47 2 1331 249 16 192 1426 71.42% 7.77% 676 768 --- ---
Mariners,
assuming average fielding		 162 1462.2 5975 5387 442 72 26 46 2 1296 243 16 187 1389 71.1% 8.29% 666 768 +2 +2
Blue Jays,
with actual fielding		 162 1438.0 6089 5446 517 72 13 39 2 1313 253 14 209 1430 71.39% 8.65% 705 768 --- ---
Blue Jays,
assuming average fielding		 162 1438.0 5931 5305 504 70 13 38 2 1279 246 14 204 1393 71.1% 8.29% 693 768 +2 +2
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 1444.0 6183 5566 500 57 20 38 2 1403 317 29 196 1288 70.85% 7.68% 748 787 --- ---
Diamondbacks,
assuming average fielding		 162 1444.0 6023 5422 487 56 19 37 2 1367 309 28 191 1255 71.1% 8.29% 720 787 +3 +3
Orioles,
with actual fielding		 162 1432.2 6166 5529 523 48 20 43 3 1433 248 26 217 1351 69.78% 8.12% 771 670 --- ---
Orioles,
assuming average fielding		 162 1432.2 6006 5386 509 47 19 42 3 1396 242 25 211 1316 71.1% 8.29% 732 670 +3 +3
Angels,
with actual fielding		 162 1431.1 6255 5504 620 52 18 59 2 1429 252 22 223 1280 70.43% 8.79% 823 660 --- ---
Angels,
assuming average fielding		 162 1431.1 6093 5361 604 51 18 57 2 1392 245 21 217 1247 71.1% 8.29% 787 660 +3 +3
Mets,
with actual fielding		 162 1432.0 6153 5450 556 80 16 44 7 1338 258 25 149 1387 70.08% 7.70% 691 787 --- ---
Mets,
assuming average fielding		 162 1432.0 5993 5309 542 78 16 43 7 1303 251 24 145 1351 71.1% 8.29% 655 787 +4 +4
Phillies,
with actual fielding		 162 1440.1 6026 5488 435 52 16 35 0 1342 250 16 177 1471 70.06% 7.99% 651 788 --- ---
Phillies,
assuming average fielding		 162 1440.1 5870 5346 424 51 16 34 0 1307 244 16 172 1433 71.1% 8.29% 621 788 +4 +4
Cardinals,
with actual fielding		 162 1432.0 6120 5528 461 48 25 53 5 1434 274 36 170 1209 70.10% 7.88% 731 650 --- ---
Cardinals,
assuming average fielding		 162 1432.0 5961 5385 449 47 24 52 5 1397 267 35 166 1178 71.1% 8.29% 693 650 +4 +4
Twins,
with actual fielding		 162 1426.2 6116 5506 459 69 21 60 1 1411 275 13 194 1372 69.73% 7.09% 745 688 --- ---
Twins,
assuming average fielding		 162 1426.2 5957 5363 447 67 20 58 1 1374 268 13 189 1336 71.1% 8.29% 698 688 +5 +5
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Giants,
with actual fielding		 162 1433.2 6095 5450 506 69 28 41 1 1354 293 22 143 1358 69.86% 8.93% 671 670 --- ---
Giants,
assuming average fielding		 162 1433.2 5937 5309 493 67 27 40 1 1319 285 21 139 1323 71.1% 8.29% 630 670 +5 +5
Nationals,
with actual fielding		 162 1423.1 6287 5554 566 89 19 57 2 1491 270 29 214 1248 69.36% 7.82% 855 643 --- ---
Nationals,
assuming average fielding		 162 1423.1 6124 5410 551 87 19 56 2 1342 243 28 208 1216 71.1% 8.29% 794 643 +5 +5
Rockies,
with actual fielding		 162 1407.1 6367 5661 554 73 15 59 5 1673 329 31 251 1093 67.62% 8.49% 993 599 --- ---
Rockies,
assuming average fielding		 162 1407.1 6202 5514 540 71 15 57 5 1630 320 30 244 1065 71.1% 8.29% 886 599 +7 +7

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This page was last modified on Monday, 29 September 2025, at 12:00 pm Pacific Time.