Spencer NivensOF
Northwest Arkansas Naturals
Age 24
L/R
5'11" / 185 lbs
AA
HR -15%K -8%
Svc 0.0 · Ctrl thru 2034
2026 ROS PROJECTION446 act + 9 ros · stats below = ROS only
showingROS
wRC+†86
AVG/OBP/SLG.125 / .222 / .125
PA9
HR0
K%22
BB%11
BABIP286
ISO117
MLB%2%
Value2026 · WAR
━ projected WAR━ paid WAR ($/8M) surplus deficit+$3M ctrl surplus
Tools · ContractCON 45 / POW 35
Career Stats + Projections
Real MLB stats plus park-adjusted projections — this season (so far / rest / full), then future seasons and career totals.
basis chips:
RAW = as recorded ·
CTX = with park/league context ·
A+C = actual + context combined ·
MLE = level/park-neutral
Methodology▸ how these numbers are built
All seasons translated to park-neutral MLB-equivalent (MLE) and combined per year. 2026 = actual YTD + projected ROS + total. 2027+ via Advanced Marcel + aging curve.
| Year | Age | Lvl | Team | MLB% | PA | AB | H | 2B | 3B | HR | BB | SO | HBP | SB | CS | AVG | OBP | SLG | OPS | ISO | BABIP | K% | BB% | wOBA | wRC+ | BAT | RUN | FLD | POS | REP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▸ Career — actual stats, one row per stint (as recorded, no adjustments) | |||||||||||||||||||||||||||||||
| 2023 | 21 | A | Columbia Fireflies | — | 122 | 98 | 18 | 3 | 0 | 2 | 23 | 20 | 0 | 7 | 3 | 184 | 339 | 276 | 614 | 92 | 208 | 16 | 19 | 294 | 85 | -2 | +0 | — | — | +3 | 0.1 |
| 2023 | 21 | ROK | ACL Royals | — | 17 | 16 | 5 | 4 | 0 | 0 | 1 | 2 | 0 | 1 | 1 | 312 | 353 | 562 | 915 | 250 | 357 | 12 | 6 | 396 | 154 | +1 | -0 | — | — | +0 | 0.1 |
| 2024 | 22 | A+ | Quad Cities River Bandits | — | 412 | 358 | 87 | 17 | 3 | 20 | 48 | 111 | 2 | 7 | 4 | 243 | 336 | 475 | 811 | 232 | 290 | 27 | 12 | 354 | 126 | +13 | -0 | — | — | +9 | 2.2 |
| 2025 | 23 | AA | Northwest Arkansas Naturals | — | 515 | 436 | 109 | 20 | 2 | 6 | 70 | 109 | 0 | 14 | 3 | 250 | 354 | 346 | 700 | 96 | 312 | 21 | 14 | 318 | 101 | +1 | +2 | — | — | +11 | 1.4 |
| ▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents) | |||||||||||||||||||||||||||||||
| 2023 | 21 | A MLE | Columbia Fireflies | — | 122 | 106 | 16 | 2 | 0 | 2 | 15 | 30 | 0 | 7 | 3 | 151 | 256 | 226 | 483 | 75 | 185 | 25 | 12 | 222 | 36 | -9 | +0 | — | — | +3 | -0.7 |
| 2023 | 21 | ROK MLE | ACL Royals | — | 17 | 16 | 4 | 3 | 0 | 0 | 1 | 3 | 0 | 1 | 1 | 250 | 294 | 438 | 732 | 188 | 263 | 18 | 6 | 268 | 68 | -1 | -0 | — | — | +0 | -0.0 |
| 2024 | 22 | A+ MLE | Quad Cities River Bandits | — | 412 | 371 | 67 | 11 | 2 | 16 | 35 | 146 | 2 | 7 | 4 | 181 | 255 | 350 | 605 | 170 | 236 | 35 | 8 | 265 | 65 | -17 | -0 | — | — | +9 | -0.8 |
| 2025 | 23 | AA MLE | Northwest Arkansas Naturals | — | 515 | 461 | 99 | 18 | 2 | 5 | 45 | 130 | 0 | 14 | 3 | 215 | 285 | 295 | 580 | 80 | 274 | 25 | 9 | 259 | 61 | -24 | +2 | — | — | +11 | -1.1 |
| 2023 | 21 | A MLE | 2 teams | — | 139 | 122 | 20 | 5 | 0 | 2 | 16 | 33 | 0 | 8 | 4 | 164 | 261 | 254 | 515 | 90 | 205 | 24 | 12 | 228 | 40 | — | — | — | — | — | — |
| 2023 | 21 | A RAW | 2 teams | — | 139 | 114 | 23 | 7 | 0 | 2 | 24 | 22 | 0 | 8 | 4 | 202 | 341 | 316 | 656 | 114 | 231 | 16 | 17 | 306 | 40 | — | — | — | — | — | — |
| 2024 | 22 | A+ MLE | Quad Cities River Bandits | — | 412 | 371 | 67 | 11 | 2 | 16 | 35 | 146 | 2 | 7 | 4 | 181 | 255 | 350 | 605 | 170 | 239 | 35 | 8 | 265 | 65 | — | — | — | — | — | — |
| 2024 | 22 | A+ RAW | Quad Cities River Bandits | — | 412 | 358 | 87 | 17 | 3 | 20 | 48 | 111 | 2 | 7 | 4 | 243 | 336 | 475 | 811 | 232 | 290 | 27 | 12 | 354 | 65 | — | — | — | — | — | — |
| 2025 | 23 | AA MLE | Northwest Arkansas Naturals | — | 515 | 461 | 99 | 18 | 2 | 5 | 45 | 130 | 0 | 14 | 3 | 215 | 285 | 295 | 580 | 80 | 281 | 25 | 9 | 259 | 61 | — | — | — | — | — | — |
| 2025 | 23 | AA RAW | Northwest Arkansas Naturals | — | 515 | 436 | 109 | 20 | 2 | 6 | 70 | 109 | 0 | 14 | 3 | 250 | 354 | 346 | 700 | 96 | 312 | 21 | 14 | 318 | 61 | — | — | — | — | — | — |
| 2023 | 21 | A MLE | 2 teams | — | 139 | 122 | 20 | 5 | 0 | 2 | 16 | 33 | 0 | 8 | 4 | 164 | 261 | 254 | 515 | 90 | 195 | 24 | 12 | 228 | 40 | — | — | — | — | — | — |
| 2024 | 22 | A+ MLE | Quad Cities River Bandits | — | 412 | 372 | 67 | 11 | 2 | 16 | 35 | 146 | 2 | 7 | 4 | 180 | 255 | 349 | 604 | 169 | 236 | 35 | 8 | 265 | 65 | — | — | — | — | — | — |
| 2025 | 23 | AA MLE | Northwest Arkansas Naturals | — | 515 | 465 | 99 | 18 | 2 | 5 | 45 | 130 | 0 | 14 | 3 | 213 | 285 | 292 | 577 | 80 | 274 | 25 | 9 | 259 | 61 | — | — | — | — | — | — |
| ▸ Model inputs — neutral MLE (past 3 seasons + 2026 so far) | |||||||||||||||||||||||||||||||
| 2023 | 21 | A MLE | 2 teams | — | 139 | 122 | 20 | 5 | 0 | 2 | 16 | 33 | 0 | 8 | 4 | 164 | 261 | 254 | 515 | 90 | 195 | 24 | 12 | 228 | 40 | — | — | — | — | — | — |
| 2024 | 22 | A+ MLE | Quad Cities River Bandits | — | 412 | 372 | 67 | 11 | 2 | 16 | 35 | 146 | 2 | 7 | 4 | 180 | 255 | 349 | 604 | 169 | 236 | 35 | 8 | 265 | 65 | — | — | — | — | — | — |
| 2025 | 23 | AA MLE | Northwest Arkansas Naturals | — | 515 | 465 | 99 | 18 | 2 | 5 | 45 | 130 | 0 | 14 | 3 | 213 | 285 | 292 | 577 | 80 | 274 | 25 | 9 | 259 | 61 | — | — | — | — | — | — |
| YTD | 24 | AA MLE | KC | — | 446 | 399 | 99 | 25 | 4 | 7 | 38 | 91 | 1 | 17 | 4 | 248 | 315 | 383 | 699 | 135 | 299 | 20 | 9 | 304 | 92 | -4 | +2 | +0 | -3 | +10 | 0.5 |
| ▸ 2026 season | |||||||||||||||||||||||||||||||
| YTD | 24 | AA RAW | KC | — | 446 | 382 | 107 | 28 | 4 | 9 | 55 | 75 | 1 | 17 | 4 | 280 | 372 | 445 | 817 | 165 | 321 | 17 | 12 | 359 | 92 | — | — | — | — | — | — |
| ROS | 24 | AA MLE | KC | 2% | 9 | 8 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 125 | 222 | 125 | 347 | 289 | 22 | 11 | 295 | 86 | -0 | +0 | +0 | -0 | +0 | -0.0 | |
| TOT | 24 | AA MLE | KC | — | 455 | 407 | 100 | 25 | 4 | 7 | 39 | 93 | 1 | 17 | 4 | 246 | 313 | 378 | 692 | 133 | 296 | 20 | 9 | 304 | 92 | -4 | +2 | +0 | -3 | +10 | 0.5 |
| ▸ Career projection (2027+) — MLB context, MLB playing time (PA × MLB%) | |||||||||||||||||||||||||||||||
| 2027 | 25 | MLB MLE | KC | 31% | 370 | 334 | 77 | 17 | 2 | 7 | 32 | 84 | 1 | 9 | 2 | 231 | 300 | 356 | 656 | 126 | 288 | 23 | 9 | 299 | 89 | -5 | +1 | +0 | -2 | +8 | 0.2 |
| 2028 | 26 | MLB MLE | KC | 45% | 529 | 476 | 112 | 25 | 3 | 11 | 46 | 119 | 2 | 12 | 3 | 235 | 305 | 370 | 675 | 134 | 288 | 22 | 9 | 302 | 91 | -6 | +1 | +0 | -3 | +11 | 0.4 |
| 2029 | 27 | MLB MLE | KC | 49% | 534 | 480 | 113 | 25 | 3 | 11 | 47 | 121 | 2 | 12 | 3 | 235 | 306 | 369 | 675 | 133 | 288 | 23 | 9 | 304 | 92 | -5 | +1 | +0 | -3 | +12 | 0.4 |
| 2030 | 28 | MLB MLE | KC | 52% | 533 | 478 | 111 | 24 | 3 | 11 | 48 | 121 | 2 | 11 | 3 | 232 | 305 | 364 | 669 | 132 | 288 | 23 | 9 | 303 | 91 | -6 | +1 | -1 | -3 | +12 | 0.3 |
| 2031 | 29 | MLB MLE | KC | 52% | 528 | 474 | 110 | 24 | 3 | 11 | 47 | 121 | 2 | 10 | 3 | 232 | 304 | 365 | 669 | 133 | 287 | 23 | 9 | 301 | 90 | -6 | +1 | -1 | -3 | +11 | 0.1 |
| 2032 | 30 | MLB MLE | KC | 52% | 414 | 372 | 85 | 19 | 2 | 8 | 37 | 96 | 2 | 7 | 2 | 228 | 302 | 355 | 657 | 126 | 286 | 23 | 9 | 298 | 88 | -6 | +1 | -2 | -2 | +9 | -0.1 |
| 2027 | 25 | MLB CTX | KC | 31% | 115 | 104 | 24 | 5 | 1 | 2 | 10 | 26 | 0 | 3 | 1 | 231 | 298 | 356 | 654 | 125 | 285 | 23 | 9 | 293 | 89 | -2 | +0 | +0 | -1 | +2 | 0.0 |
| 2028 | 26 | MLB CTX | KC | 45% | 236 | 212 | 50 | 11 | 2 | 5 | 21 | 53 | 1 | 6 | 1 | 236 | 308 | 377 | 685 | 142 | 285 | 22 | 9 | 295 | 91 | -3 | +1 | +0 | -1 | +5 | 0.2 |
| 2029 | 27 | MLB CTX | KC | 49% | 263 | 237 | 55 | 12 | 2 | 5 | 23 | 59 | 1 | 6 | 2 | 232 | 303 | 363 | 666 | 131 | 285 | 22 | 9 | 296 | 92 | -3 | +0 | +0 | -2 | +6 | 0.2 |
| 2030 | 28 | MLB CTX | KC | 52% | 275 | 247 | 57 | 12 | 2 | 5 | 25 | 62 | 1 | 6 | 1 | 231 | 304 | 356 | 660 | 126 | 285 | 23 | 9 | 295 | 91 | -3 | +1 | -0 | -2 | +6 | 0.2 |
| 2031 | 29 | MLB CTX | KC | 52% | 272 | 245 | 56 | 12 | 2 | 5 | 24 | 62 | 1 | 5 | 1 | 229 | 300 | 355 | 655 | 127 | 284 | 23 | 9 | 293 | 90 | -3 | +1 | -1 | -2 | +6 | 0.1 |
| 2032 | 30 | MLB CTX | KC | 52% | 213 | 191 | 43 | 9 | 1 | 4 | 19 | 49 | 1 | 4 | 1 | 225 | 299 | 346 | 644 | 120 | 282 | 23 | 9 | 291 | 88 | -3 | +0 | -1 | -1 | +5 | -0.0 |
| ▸ Career Totals | |||||||||||||||||||||||||||||||
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||||||||||||||
| Career | — | A+C | — | 1374 | 1236 | 285 | 61 | 10 | 26 | 122 | 311 | 5 | 30 | 7 | 231 | 302 | 359 | 661 | 129 | 286 | 23 | 9 | 294 | 82 | -16 | +3 | -2 | -8 | +30 | 0.7 | |
| / 162G | — | A+C | — | 650 | 585 | 135 | 29 | 5 | 12 | 58 | 147 | 2 | 14 | 3 | 231 | 302 | 359 | 661 | 128 | 287 | 23 | 9 | 294 | 82 | -7 | +2 | -1 | -4 | +14 | 0.3 | |
| Career | — | MLE | — | 3983 | 3576 | 795 | 168 | 20 | 82 | 354 | 973 | 13 | 90 | 27 | 222 | 295 | 349 | 644 | 127 | 279 | 24 | 9 | 290 | 82 | -34 | +6 | -4 | -18 | +63 | 1.4 | |
| / 162G | — | MLE | — | 650 | 584 | 129 | 27 | 3 | 13 | 58 | 159 | 2 | 15 | 4 | 221 | 294 | 344 | 638 | 123 | 278 | 24 | 9 | 290 | 82 | -8 | +1 | -1 | -4 | +14 | 0.3 | |