Juan Sierra
OF Fayetteville Woodpeckers
Age 21
R/R
6'2" / 208 lbs
A
HR -6%
Svc 0.0 · Ctrl thru 2037
Overview
APROSPECTMiLBFA 2038
ETA2029MLB%0%
| Year | Age | Lvl / Team | PA | AVG/OBP/SLG | HR | SB | wRC+ | WAR | MLE AVG/OBP/SLG |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19 | ROKHOU | 122 | .289/.415/.402 | 2 | 1 | 70 | — | .229/.314/.324 |
| 2026 | 20 | AHOU | 266 | .236/.309/.414 | 10 | 7 | 55 | — | .193/.248/.320 |
| 2026 | 20 | ROKHOU | 15 | .000/.267/.000 | 0 | 0 | -38 | — | .000/.133/.000 |
| 2027PROJ0% MLB | 21 | MLBHOU | 391 | .207/.268/.333 | 9 | 7 | 69 | -0.4 | |
| 2028PROJ34% MLB | 22 | MLBHOU | 113 | .214/.276/.347 | 3 | 2 | 73 | -0.2 | |
| 2029PROJ48% MLB | 23 | MLBHOU | 199 | .217/.280/.355 | 5 | 4 | 77 | -0.2 |
Next 3 projected WAR -0.8Projected rows: MLB playing time only, park and league context applied.
ContractESTIMATED
Control thru2037Service0.0First FA2038
2027MiLB2028MiLB2029MiLB2030MiLB2031MiLB2032Pre-Arb$0.9M2033Pre-Arb$0.9M2034Pre-Arb$1.0M+3
Skills · percentileMiLB Statcast 2026 A
ISO70
wRC+41
Z-Con%41
Speed40
wOBA38
K%37
Career WAR0 WAR median (P10 -0 / P90 1, comp-based) · star 2% · didn't stick 92%
CompsJohan Mieses (age 21) · Brian Sanchez (age 21) · Jhonkensy Noel (age 20)
2027 FULL-SEASON PROJECTIONpark-neutral Marcel · 271 proj PA
wRC+†69
AVG/OBP/SLG.205 / .266 / .330
PA271
HR6
SB5
K%28
BB%7
ISO126
MLB%0%
Value2027 · WAR
━ projected WAR━ paid WAR ($/8M) surplus deficit-$3M ctrl surplus
Tools · ContractCON 31 / POW 48
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. 2027 = actual YTD + projected ROS + total. 2028+ 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 | 17 | ROK | DSL Astros Blue | — | 150 | 121 | 21 | 3 | 0 | 4 | 25 | 29 | 3 | 1 | 1 | 174 | 329 | 298 | 626 | 124 | 191 | 19 | 17 | 297 | 13 | — | — | — | — | — | — |
| 2024 | 18 | ROK | DSL Astros Blue | — | 195 | 163 | 44 | 10 | 0 | 9 | 22 | 40 | 7 | 10 | 3 | 270 | 380 | 497 | 877 | 227 | 299 | 21 | 11 | 383 | 47 | — | — | — | — | — | — |
| 2025 | 19 | ROK | FCL Astros | — | 122 | 97 | 28 | 5 | 0 | 2 | 19 | 26 | 2 | 1 | 2 | 289 | 415 | 402 | 817 | 113 | 356 | 21 | 16 | 363 | 70 | — | — | — | — | — | — |
| 2026 | 20 | A | Fayetteville Woodpeckers | — | 266 | 237 | 56 | 10 | 1 | 10 | 22 | 70 | 3 | 7 | 6 | 236 | 309 | 414 | 723 | 177 | 286 | 26 | 8 | 318 | 55 | — | — | — | — | — | — |
| 2026 | 20 | ROK | FCL Astros | — | 15 | 11 | 0 | 0 | 0 | 0 | 4 | 4 | 0 | 0 | 0 | 267 | 267 | 27 | 27 | 186 | -38 | — | — | — | — | — | — | ||||
| ▸ Career — adjusted (every ACTUAL line translated to park/league-neutral MLB equivalents) | |||||||||||||||||||||||||||||||
| 2023 | 17 | ROK MLE | DSL Astros Blue | — | 150 | 128 | 13 | 2 | 0 | 2 | 18 | 35 | 3 | 1 | 1 | 102 | 228 | 164 | 392 | 62 | 116 | 23 | 12 | 188 | 13 | — | — | — | — | — | — |
| 2024 | 18 | ROK MLE | DSL Astros Blue | — | 195 | 170 | 27 | 6 | 0 | 4 | 15 | 50 | 7 | 10 | 3 | 159 | 255 | 265 | 520 | 106 | 189 | 26 | 8 | 238 | 47 | — | — | — | — | — | — |
| 2025 | 19 | ROK MLE | FCL Astros | — | 122 | 105 | 24 | 4 | 0 | 2 | 11 | 38 | 2 | 1 | 2 | 229 | 314 | 324 | 637 | 95 | 287 | 31 | 9 | 271 | 70 | — | — | — | — | — | — |
| 2026 | 20 | A MLE | Fayetteville Woodpeckers | — | 266 | 244 | 47 | 8 | 1 | 7 | 15 | 95 | 3 | 7 | 6 | 193 | 248 | 320 | 568 | 127 | 263 | 36 | 6 | 249 | 55 | — | — | — | — | — | — |
| 2026 | 20 | ROK MLE | FCL Astros | — | 15 | 13 | 0 | 0 | 0 | 0 | 2 | 6 | 0 | 0 | 0 | 133 | 133 | 40 | 13 | 112 | -38 | — | — | — | — | — | — | ||||
| 2023 | 17 | ROK MLE | DSL Astros Blue | — | 150 | 128 | 13 | 2 | 0 | 2 | 18 | 35 | 3 | 1 | 1 | 102 | 228 | 164 | 392 | 62 | 120 | 23 | 12 | 188 | 13 | — | — | — | — | — | — |
| 2023 | 17 | ROK RAW | DSL Astros Blue | — | 150 | 121 | 21 | 3 | 0 | 4 | 25 | 29 | 3 | 1 | 1 | 174 | 329 | 298 | 626 | 124 | 191 | 19 | 17 | 297 | 13 | — | — | — | — | — | — |
| 2024 | 18 | ROK MLE | DSL Astros Blue | — | 195 | 170 | 27 | 6 | 0 | 4 | 15 | 50 | 7 | 10 | 3 | 159 | 255 | 265 | 520 | 106 | 193 | 26 | 8 | 238 | 47 | — | — | — | — | — | — |
| 2024 | 18 | ROK RAW | DSL Astros Blue | — | 195 | 163 | 44 | 10 | 0 | 9 | 22 | 40 | 7 | 10 | 3 | 270 | 380 | 497 | 877 | 227 | 299 | 21 | 11 | 383 | 47 | — | — | — | — | — | — |
| 2025 | 19 | ROK MLE | FCL Astros | — | 122 | 105 | 24 | 4 | 0 | 2 | 11 | 38 | 2 | 1 | 2 | 229 | 314 | 324 | 637 | 95 | 319 | 31 | 9 | 271 | 70 | — | — | — | — | — | — |
| 2025 | 19 | ROK RAW | FCL Astros | — | 122 | 97 | 28 | 5 | 0 | 2 | 19 | 26 | 2 | 1 | 2 | 289 | 415 | 402 | 817 | 113 | 356 | 21 | 16 | 363 | 70 | — | — | — | — | — | — |
| 2026 | 20 | A MLE | 2 teams | — | 281 | 256 | 47 | 8 | 1 | 7 | 18 | 101 | 3 | 7 | 6 | 184 | 245 | 305 | 550 | 121 | 263 | 36 | 6 | 242 | 50 | — | — | — | — | — | — |
| 2026 | 20 | A RAW | 2 teams | — | 281 | 248 | 56 | 10 | 1 | 10 | 26 | 74 | 3 | 7 | 6 | 226 | 307 | 395 | 702 | 169 | 274 | 26 | 9 | 311 | 50 | — | — | — | — | — | — |
| 2023 | 17 | ROK MLE | DSL Astros Blue | — | 150 | 128 | 13 | 2 | 0 | 2 | 18 | 35 | 3 | 1 | 1 | 102 | 228 | 164 | 392 | 62 | 116 | 23 | 12 | 188 | 13 | — | — | — | — | — | — |
| 2024 | 18 | ROK MLE | DSL Astros Blue | — | 195 | 171 | 27 | 6 | 0 | 4 | 15 | 50 | 7 | 10 | 3 | 158 | 255 | 263 | 518 | 105 | 189 | 26 | 8 | 238 | 47 | — | — | — | — | — | — |
| 2025 | 19 | ROK MLE | FCL Astros | — | 122 | 108 | 24 | 4 | 0 | 2 | 11 | 38 | 2 | 1 | 2 | 222 | 314 | 315 | 628 | 93 | 287 | 31 | 9 | 271 | 70 | — | — | — | — | — | — |
| 2026 | 20 | A MLE | 2 teams | — | 281 | 258 | 47 | 8 | 1 | 7 | 18 | 101 | 3 | 7 | 6 | 182 | 245 | 302 | 548 | 120 | 249 | 36 | 6 | 242 | 50 | — | — | — | — | — | — |
| ▸ Model inputs — neutral MLE (past 3 seasons) | |||||||||||||||||||||||||||||||
| 2024 | 18 | ROK MLE | DSL Astros Blue | — | 195 | 171 | 27 | 6 | 0 | 4 | 15 | 50 | 7 | 10 | 3 | 158 | 255 | 263 | 518 | 105 | 189 | 26 | 8 | 238 | 47 | — | — | — | — | — | — |
| 2025 | 19 | ROK MLE | FCL Astros | — | 122 | 108 | 24 | 4 | 0 | 2 | 11 | 38 | 2 | 1 | 2 | 222 | 314 | 315 | 628 | 93 | 287 | 31 | 9 | 271 | 70 | — | — | — | — | — | — |
| 2026 | 20 | A MLE | 2 teams | — | 281 | 258 | 47 | 8 | 1 | 7 | 18 | 101 | 3 | 7 | 6 | 182 | 245 | 302 | 548 | 120 | 249 | 36 | 6 | 242 | 50 | — | — | — | — | — | — |
| ▸ 2027 season | |||||||||||||||||||||||||||||||
| ▸ 2027 — full MLE projection (neutral park, full availability) | |||||||||||||||||||||||||||||||
| 2027 | 21 | MLB MLE | HOU | 0% | 391 | 358 | 74 | 14 | 2 | 9 | 26 | 109 | 4 | 7 | 3 | 207 | 268 | 333 | 601 | 126 | 267 | 28 | 7 | 270 | 69 | -15 | +0 | +0 | -2 | +8 | -0.4 |
| ▸ Career projection (2028+) — MLB context, MLB playing time (PA × MLB%) | |||||||||||||||||||||||||||||||
| 2028 | 22 | MLB MLE | HOU | 34% | 330 | 302 | 64 | 12 | 2 | 8 | 22 | 90 | 3 | 6 | 2 | 211 | 274 | 344 | 618 | 133 | 269 | 27 | 7 | 277 | 73 | -10 | +0 | +0 | -2 | +7 | -0.5 |
| 2029 | 23 | MLB MLE | HOU | 48% | 411 | 375 | 81 | 15 | 2 | 11 | 29 | 110 | 4 | 8 | 3 | 215 | 278 | 352 | 631 | 137 | 271 | 27 | 7 | 282 | 77 | -11 | +0 | +0 | -2 | +9 | -0.5 |
| 2030 | 24 | MLB MLE | HOU | 53% | 465 | 424 | 92 | 17 | 2 | 13 | 33 | 123 | 5 | 9 | 3 | 218 | 282 | 358 | 640 | 140 | 273 | 26 | 7 | 286 | 80 | -11 | +1 | +0 | -3 | +10 | -0.4 |
| 2031 | 25 | MLB MLE | HOU | 55% | 495 | 451 | 98 | 18 | 2 | 14 | 36 | 130 | 5 | 10 | 4 | 219 | 284 | 361 | 646 | 142 | 274 | 26 | 7 | 288 | 81 | -11 | +0 | +0 | -3 | +11 | -0.3 |
| 2032 | 26 | MLB MLE | HOU | 56% | 511 | 464 | 102 | 19 | 2 | 14 | 37 | 133 | 5 | 10 | 4 | 220 | 286 | 363 | 649 | 143 | 275 | 26 | 7 | 290 | 82 | -11 | +0 | +0 | -3 | +11 | -0.2 |
| 2033 | 27 | MLB MLE | HOU | 55% | 517 | 469 | 102 | 19 | 2 | 14 | 38 | 135 | 5 | 10 | 4 | 219 | 285 | 361 | 646 | 141 | 274 | 26 | 7 | 288 | 81 | -12 | +0 | +0 | -3 | +11 | -0.3 |
| 2034 | 28 | MLB MLE | HOU | 55% | 516 | 468 | 102 | 19 | 2 | 14 | 38 | 136 | 5 | 9 | 4 | 218 | 283 | 356 | 639 | 139 | 273 | 26 | 7 | 286 | 79 | -13 | +0 | -1 | -3 | +11 | -0.5 |
| 2028 | 22 | MLB CTX | HOU | 34% | 113 | 103 | 22 | 4 | 1 | 3 | 8 | 31 | 1 | 2 | 1 | 214 | 276 | 347 | 623 | 133 | 273 | 27 | 7 | 279 | 73 | -4 | +0 | +0 | -1 | +2 | -0.2 |
| 2029 | 23 | MLB CTX | HOU | 48% | 199 | 181 | 40 | 8 | 1 | 5 | 14 | 53 | 2 | 4 | 1 | 217 | 280 | 355 | 635 | 137 | 275 | 27 | 7 | 284 | 77 | -5 | +0 | +0 | -1 | +4 | -0.2 |
| 2030 | 24 | MLB CTX | HOU | 53% | 245 | 223 | 49 | 10 | 1 | 6 | 17 | 65 | 3 | 5 | 2 | 220 | 284 | 360 | 644 | 140 | 277 | 27 | 7 | 288 | 80 | -6 | +0 | +0 | -1 | +5 | -0.2 |
| 2031 | 25 | MLB CTX | HOU | 55% | 271 | 247 | 54 | 11 | 1 | 7 | 19 | 71 | 3 | 5 | 2 | 222 | 286 | 364 | 650 | 142 | 278 | 26 | 7 | 290 | 81 | -6 | +0 | +0 | -2 | +6 | -0.2 |
| 2032 | 26 | MLB CTX | HOU | 56% | 284 | 258 | 57 | 11 | 1 | 8 | 21 | 74 | 3 | 5 | 2 | 223 | 288 | 366 | 654 | 143 | 279 | 26 | 7 | 292 | 82 | -6 | +0 | +0 | -2 | +6 | -0.1 |
| 2033 | 27 | MLB CTX | HOU | 55% | 284 | 258 | 57 | 11 | 1 | 8 | 21 | 74 | 3 | 5 | 2 | 222 | 287 | 363 | 650 | 141 | 278 | 26 | 7 | 290 | 81 | -6 | +0 | +0 | -2 | +6 | -0.2 |
| 2034 | 28 | MLB CTX | HOU | 55% | 282 | 256 | 56 | 11 | 1 | 7 | 21 | 74 | 3 | 5 | 2 | 220 | 285 | 358 | 643 | 139 | 277 | 26 | 7 | 288 | 79 | -7 | +0 | -0 | -2 | +6 | -0.3 |
| ▸ Career Totals | |||||||||||||||||||||||||||||||
| ▸ Career totals — MLB only (actual + projected) | |||||||||||||||||||||||||||||||
| Career | — | A+C | — | 1678 | 1526 | 335 | 66 | 7 | 44 | 121 | 442 | 18 | 31 | 12 | 220 | 285 | 358 | 643 | 139 | 278 | 26 | 7 | 288 | 73 | -40 | +1 | -0 | -10 | +36 | -1.3 | |
| / 162G | — | A+C | — | 650 | 591 | 130 | 26 | 3 | 17 | 47 | 171 | 7 | 12 | 5 | 220 | 285 | 360 | 646 | 140 | 278 | 26 | 7 | 288 | 73 | -16 | +1 | -0 | -4 | +14 | -0.5 | |
| Career | — | MLE | — | 4264 | 3860 | 803 | 149 | 16 | 109 | 313 | 1156 | 50 | 86 | 38 | 208 | 276 | 340 | 616 | 132 | 264 | 27 | 7 | 276 | 73 | -89 | +3 | -1 | -21 | +76 | -3.2 | |
| / 162G | — | MLE | — | 650 | 588 | 123 | 23 | 2 | 17 | 48 | 176 | 8 | 13 | 6 | 209 | 278 | 342 | 620 | 133 | 265 | 27 | 7 | 276 | 73 | -16 | +1 | -0 | -4 | +14 | -0.6 | |