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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 Friday, 15 May 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
Braves,
with actual fielding		 45 401.0 1642 1455 159 17 3 7 1 298 46 8 44 397 75.20% 8.92% 153 225 --- ---
Braves,
assuming average fielding		 45 401.0 1596 1414 155 17 3 7 1 290 45 8 43 386 71.38% 8.35% 166 225 -1 -6
Rays,
with actual fielding		 43 387.2 1611 1442 136 11 7 13 2 314 66 2 45 333 75.18% 5.88% 163 187 --- ---
Rays,
assuming average fielding		 43 387.2 1566 1401 132 11 7 13 2 305 64 2 44 324 71.38% 8.35% 174 187 -1 -5
Dodgers,
with actual fielding		 45 397.0 1622 1464 129 21 3 5 0 312 65 2 41 405 73.59% 7.91% 146 222 --- ---
Dodgers,
assuming average fielding		 45 397.0 1576 1423 125 20 3 5 0 303 63 2 40 394 71.38% 8.35% 152 222 -1 -3
Cubs,
with actual fielding		 45 400.0 1651 1486 136 13 6 10 0 341 54 2 57 367 73.65% 9.62% 174 232 --- ---
Cubs,
assuming average fielding		 45 400.0 1605 1444 132 13 6 10 0 331 52 2 55 357 71.38% 8.35% 182 232 -1 -3
Rangers,
with actual fielding		 44 384.2 1618 1447 143 16 4 8 0 329 57 4 46 373 72.79% 6.64% 169 168 --- ---
Rangers,
assuming average fielding		 44 384.2 1572 1406 139 16 4 8 0 320 55 4 45 363 71.38% 8.35% 171 168 0 -1
Yankees,
with actual fielding		 45 398.0 1640 1471 136 17 7 9 0 321 47 6 36 394 73.04% 8.79% 150 217 --- ---
Yankees,
assuming average fielding		 45 398.0 1594 1430 132 17 7 9 0 312 46 6 35 383 71.38% 8.35% 152 217 0 -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		 44 389.1 1637 1460 138 19 9 10 1 348 58 2 52 362 72.21% 8.58% 177 165 --- ---
Red Sox,
assuming average fielding		 44 389.1 1591 1419 134 18 9 10 1 338 56 2 51 352 71.38% 8.35% 178 165 -1 -1
Diamondbacks,
with actual fielding		 43 379.0 1611 1444 136 14 5 10 2 346 74 9 50 318 72.87% 6.88% 185 168 --- ---
Diamondbacks,
assuming average fielding		 43 379.0 1566 1403 132 14 5 10 2 336 72 9 49 309 71.38% 8.35% 186 168 -1 -1
White Sox,
with actual fielding		 44 390.2 1696 1462 181 26 10 15 2 355 73 10 45 351 71.59% 8.23% 202 198 --- ---
White Sox,
assuming average fielding		 44 390.2 1648 1421 176 25 10 15 2 345 71 10 44 341 71.38% 8.35% 200 198 0 0
Pirates,
with actual fielding		 45 410.2 1729 1526 159 26 4 12 2 344 83 5 36 397 72.23% 8.30% 173 224 --- ---
Pirates,
assuming average fielding		 45 410.2 1680 1483 155 25 4 12 2 334 81 5 35 386 71.38% 8.35% 173 224 0 0
Reds,
with actual fielding		 45 403.1 1776 1530 210 19 3 12 2 382 71 12 56 348 71.43% 8.56% 227 199 --- ---
Reds,
assuming average fielding		 45 403.1 1726 1487 204 18 3 12 2 371 69 12 54 338 71.38% 8.35% 225 199 0 +1
Royals,
with actual fielding		 45 399.0 1704 1486 196 10 5 7 0 356 90 5 51 384 71.31% 11.52% 198 190 --- ---
Royals,
assuming average fielding		 45 399.0 1656 1444 190 10 5 7 0 346 87 5 50 373 71.38% 8.35% 194 190 0 +1
Marlins,
with actual fielding		 45 394.2 1687 1486 169 18 3 9 2 337 81 7 39 376 72.48% 6.33% 185 188 --- ---
Marlins,
assuming average fielding		 45 394.2 1640 1444 164 17 3 9 2 328 79 7 38 365 71.38% 8.35% 184 188 0 +1
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Athletics,
with actual fielding		 44 392.2 1725 1498 184 19 7 16 1 383 71 4 54 347 70.63% 7.29% 217 202 --- ---
Athletics,
assuming average fielding		 44 392.2 1676 1456 179 18 7 16 1 372 69 4 52 337 71.38% 8.35% 210 202 0 +2
Guardians,
with actual fielding		 46 406.1 1717 1526 156 15 6 14 0 363 74 3 54 424 71.07% 7.95% 194 188 --- ---
Guardians,
assuming average fielding		 46 406.1 1669 1483 152 15 6 14 0 353 72 3 52 412 71.38% 8.35% 188 188 +1 +2
Padres,
with actual fielding		 44 392.0 1644 1465 144 20 6 8 1 349 72 7 36 386 70.39% 9.30% 166 166 --- ---
Padres,
assuming average fielding		 44 392.0 1598 1424 140 19 6 8 1 339 70 7 35 375 71.38% 8.35% 161 166 +1 +2
Giants,
with actual fielding		 45 399.1 1696 1491 172 13 9 10 1 361 75 7 46 358 71.52% 10.75% 190 154 --- ---
Giants,
assuming average fielding		 45 399.1 1648 1449 167 13 9 10 1 351 73 7 45 348 71.38% 8.35% 187 154 +1 +2
Cardinals,
with actual fielding		 44 397.1 1706 1500 168 21 3 12 2 378 61 3 47 319 71.19% 10.92% 198 202 --- ---
Cardinals,
assuming average fielding		 44 397.1 1658 1458 163 20 3 12 2 367 59 3 46 310 71.38% 8.35% 195 202 +1 +2
Brewers,
with actual fielding		 42 374.1 1550 1376 148 13 7 6 0 310 61 3 32 408 70.71% 11.78% 144 184 --- ---
Brewers,
assuming average fielding		 42 374.1 1506 1337 144 13 7 6 0 301 59 3 31 397 71.38% 8.35% 138 184 0 +3
Twins,
with actual fielding		 45 396.0 1717 1505 163 27 8 14 0 372 90 5 40 340 71.05% 7.36% 202 203 --- ---
Twins,
assuming average fielding		 45 396.0 1669 1463 158 26 8 14 0 362 87 5 39 330 71.38% 8.35% 194 203 0 +3
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Astros,
with actual fielding		 46 403.1 1813 1539 232 27 5 10 0 398 69 9 61 397 69.25% 8.77% 247 213 --- ---
Astros,
assuming average fielding		 46 403.1 1762 1496 225 26 5 10 0 387 67 9 59 386 71.38% 8.35% 233 213 +1 +4
Angels,
with actual fielding		 45 394.1 1739 1491 203 22 4 17 2 359 66 4 44 380 71.05% 7.02% 210 186 --- ---
Angels,
assuming average fielding		 45 394.1 1690 1449 197 21 4 17 2 349 64 4 43 369 71.38% 8.35% 200 186 +1 +4
Mariners,
with actual fielding		 46 409.1 1705 1536 114 27 10 18 0 388 78 2 45 391 69.59% 10.84% 182 197 --- ---
Mariners,
assuming average fielding		 46 409.1 1657 1493 111 26 10 17 0 377 76 2 44 380 71.38% 8.35% 173 197 +1 +4
Nationals,
with actual fielding		 45 404.0 1809 1574 177 29 9 18 2 402 73 2 64 345 71.64% 5.09% 245 207 --- ---
Nationals,
assuming average fielding		 45 404.0 1758 1530 172 28 9 17 2 376 68 2 62 335 71.38% 8.35% 232 207 +1 +4
Rockies,
with actual fielding		 45 396.1 1737 1541 150 17 8 20 1 419 86 6 61 334 69.51% 7.90% 235 183 --- ---
Rockies,
assuming average fielding		 45 396.1 1688 1498 146 17 8 19 1 407 84 6 59 325 71.38% 8.35% 219 183 +2 +5
Tigers,
with actual fielding		 45 389.1 1668 1479 156 16 7 10 0 358 70 9 39 370 70.65% 8.42% 187 189 --- ---
Tigers,
assuming average fielding		 45 389.1 1621 1437 152 16 7 10 0 348 68 9 38 360 71.38% 8.35% 175 189 +1 +5
Mets,
with actual fielding		 44 395.0 1677 1489 155 16 7 9 1 346 65 7 38 417 70.67% 6.99% 173 154 --- ---
Mets,
assuming average fielding		 44 395.0 1630 1447 151 16 7 9 1 336 63 7 37 405 71.38% 8.35% 163 154 +1 +5
Team G IP BFP AB BB HBP SH SF CI H 2B 3B HR SO FEbat FErun OR R       ΔW ΔWyr
Blue Jays,
with actual fielding		 44 390.1 1657 1481 139 15 9 12 1 371 62 2 43 395 69.17% 8.82% 182 172 --- ---
Blue Jays,
assuming average fielding		 44 390.1 1610 1439 135 15 9 12 1 361 60 2 42 384 71.38% 8.35% 169 172 +1 +5
Orioles,
with actual fielding		 45 397.1 1739 1534 169 16 2 18 0 397 84 8 53 370 69.58% 8.53% 227 180 --- ---
Orioles,
assuming average fielding		 45 397.1 1690 1491 164 16 2 17 0 386 82 8 52 360 71.38% 8.35% 209 180 +1 +6
Phillies,
with actual fielding		 45 402.1 1755 1583 133 21 7 11 0 425 69 7 46 430 66.31% 6.64% 214 196 --- ---
Phillies,
assuming average fielding		 45 402.1 1706 1538 129 20 7 11 0 413 67 7 45 418 71.38% 8.35% 181 196 +3 +13

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