Rankings based on seasons 1901 – 2025.
To be eligible, position players need 1,500 plate appearances, starting pitchers have to have started a minimum of 75 games, and relief pitchers need to have 150 innings pitched for the franchise.
George BrettHOFMVP
- Age: 20–40
- Years: 1973–1993
- Positions: 3B, 1B
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 88.6 | 132 | 2707 | 11624 | 10349 | 1583 | 3154 | 665 | 137 | 317 | 1596 | 201 | 97 | 1096 | 908 | .304 | .368 | .487 | .855 |
Kevin Appier
- Age: 21-31, 35-36
- Years: 1989-1999, 2003-2004
- Positions: SP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 47.1 | 77 | 287 | 275 | 115 | 92 | 3.49 | 1840.4 | 32 | 10 | 0 | 771 | 714 | 634 | 1458 | 19.0% | 1.25 |
Bret Saberhagen2x Cy Young
- Age: 20-27
- Years: 1984-1991
- Positions: SP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40.7 | 78 | 252 | 226 | 110 | 78 | 3.22 | 1658.7 | 64 | 14 | 1 | 650 | 593 | 331 | 1093 | 16.3% | 1.13 |
Amos Otis
- Age: 23-36
- Years: 1970-1983
- Positions: CF
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44.8 | 118 | 1891 | 7970 | 7050 | 1074 | 1977 | 365 | 65 | 193 | 992 | 340 | 89 | 739 | 954 | .280 | .347 | .433 | .780 |
Mark Gubicza
- Age: 21-33
- Years: 1984-1996
- Positions: SP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 38 | 91 | 382 | 327 | 132 | 135 | 3.92 | 2216 | 42 | 16 | 2 | 1050 | 965 | 783 | 1366 | 14.4% | 1.36 |
Willie Wilson
- Age: 20-34
- Years: 1976-1990
- Positions: CF
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 42.4 | 95 | 1787 | 7302 | 6799 | 1059 | 1968 | 241 | 133 | 40 | 509 | 612 | 119 | 360 | 990 | .289 | .329 | .382 | .711 |
Alex Gordon
- Age: 23-36
- Years: 2007-2020
- Positions: LF, 3B
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 34.9 | 102 | 1753 | 7250 | 6391 | 867 | 1643 | 357 | 26 | 190 | 749 | 113 | 45 | 684 | 1535 | .257 | .338 | .410 | .748 |
Zack GreinkeCy Young
- Age: 20-26, 38-39
- Years: 2004-2010, 2022-2023
- Positions: SP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 29.7 | 89 | 266 | 222 | 66 | 91 | 3.93 | 1386.4 | 12 | 3 | 1 | 656 | 606 | 330 | 1101 | 18.9% | 1.27 |
Bobby Witt Jr.Active
- Age: 22-25
- Years: 2022-2025
- Positions: SS
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.7 | 129 | 626 | 2722 | 2491 | 403 | 722 | 151 | 34 | 105 | 373 | 148 | 43 | 176 | 487 | .290 | .340 | .504 | .844 |
Dan Quisenberry
- Age: 26-35
- Years: 1979-1988
- Positions: RP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.3 | 63 | 573 | 0 | 51 | 44 | 2.57 | 918.7 | 0 | 0 | 238 | 294 | 262 | 139 | 321 | 8.6% | 1.15 |
John Mayberry
- Age: 23-28
- Years: 1972-1977
- Positions: 1B
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21.4 | 133 | 897 | 3753 | 3131 | 459 | 816 | 139 | 10 | 143 | 552 | 16 | 11 | 561 | 457 | .261 | .374 | .448 | .822 |
Hal McRae
- Age: 27-41
- Years: 1973-1987
- Positions: DH, LF
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 27.6 | 125 | 1837 | 7362 | 6568 | 873 | 1924 | 449 | 63 | 169 | 1012 | 105 | 73 | 616 | 697 | .293 | .356 | .458 | .814 |
Carlos BeltranRookie of the Year
- Age: 21-27
- Years: 1998-2004
- Positions: CF
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24.8 | 110 | 795 | 3512 | 3134 | 546 | 899 | 156 | 45 | 123 | 516 | 164 | 23 | 316 | 584 | .287 | .352 | .483 | .835 |
Charlie Leibrandt
- Age: 27-32
- Years: 1984-1989
- Positions: SP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.9 | 87 | 194 | 187 | 76 | 61 | 3.61 | 1255.6 | 34 | 10 | 0 | 563 | 503 | 359 | 618 | 11.6% | 1.32 |
Lorenzo Cain
- Age: 25-31
- Years: 2011-2017
- Positions: CF
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24.6 | 107 | 713 | 2894 | 2646 | 383 | 765 | 140 | 21 | 56 | 308 | 120 | 24 | 195 | 540 | .289 | .342 | .421 | .763 |
Salvador PerezActive
- Age: 21-28, 30-35
- Years: 2011-2018, 2020-2025
- Positions: C
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 35.5 | 103 | 1707 | 6904 | 6477 | 710 | 1712 | 320 | 11 | 303 | 1016 | 6 | 1 | 271 | 1303 | .264 | .301 | .457 | .759 |
Mike Sweeney
- Age: 21-33
- Years: 1995-2007
- Positions: 1B, DH, C
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 23.3 | 118 | 1282 | 5278 | 4669 | 700 | 1398 | 297 | 5 | 197 | 837 | 50 | 25 | 484 | 555 | .299 | .369 | .492 | .861 |
Jeff Montgomery
- Age: 26-37
- Years: 1988-1999
- Positions: RP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.9 | 71 | 686 | 0 | 44 | 50 | 3.21 | 846.3 | 0 | 0 | 304 | 332 | 302 | 287 | 720 | 20.3% | 1.24 |
Dennis Leonard
- Age: 23-32, 34-35
- Years: 1974-1983, 1985-1986
- Positions: SP
- Teams: Kansas City Royals
| WAR | ERA- | G | GS | W | L | ERA | IP | CG | SHO | SV | R | ER | BB | SO | K% | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 25.7 | 93 | 312 | 302 | 144 | 106 | 3.70 | 2184.2 | 103 | 23 | 1 | 1008 | 898 | 622 | 1323 | 14.5% | 1.26 |
Danny Tartabull
- Age: 24-28
- Years: 1987-1991
- Positions: RF
- Teams: Kansas City Royals
| WAR | wRC+ | G | PA | AB | R | H | 2B | 3B | HR | RBI | SB | CS | BB | SO | BA | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.8 | 145 | 657 | 2684 | 2327 | 348 | 674 | 141 | 9 | 124 | 425 | 28 | 15 | 325 | 592 | .290 | .376 | .518 | .894 |
The Next 5
All underlying data used in this analysis is available in The Baseball Scholar Data Library.





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