Diovel Mariano
P
ACL Guardians
Age 22
RHP
6'1" / 175 lbs
ROK
peak 0.1 · 2027
2026 ROS PROJECTION12 act + 16 ip · rates below = ROS only
wRC+ AGAINSTvL 120111vR 102
ERA4.46
FIP4.46
K%22.4%
BB%10.1%
K-BB%12.3%
ROS IP16
Value2026 · WAR
Runs saved vs league avg · 28 IP
Grades · Contract
Contract
No contract data on file. Pre-MLB players and minor-league free agents do not yet have salary projections — entries are added at first 40-man roster placement.
Career Stats + Projections
Viewactual = stats as recorded (seasons combined) + projected real-world MLB lines · MLE = level/park-neutral translations
Methodology▸ how WAR & MLE are computed
Stats are park-neutral MLB equivalents. The "TEAM" column shows current org affiliation only — we do NOT project at that team's park.
Rates (K%, BB%, HR-BF) are park-stripped; MiLB stat lines are translated to their MLB-equivalent via per-level MLE factors.
WAR is computed from projected runs prevented vs a replacement pitcher (the marginal arm a team would call up if this pitcher were unavailable) — calibrated to industry-standard fWAR.
| Year | Age | Lvl | Team | G | GS | IP | BF | K | BB | HR | GS% | IP/G | K% | BB% | K-BB% | HR% | ERA | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | 18 | ROK | DSL CLE Red | 19 | 0 | 28 | 121 | 19 | 8 | 3 | 0% | 1.5 | 10.7% | 8.3% | 2.4% | 2.5% | 3.21 | 4.63 | — |
| 2022 | 18 | ROK | DSL CLE Red | 19 | 0 | 28 | 121 | 19 | 8 | 3 | 0% | 1.5 | 15.7% | 6.6% | 9.1% | 2.5% | 3.21 | 3.99 | — |
| 2023 | 19 | ROK | DSL Guardians Red | 14 | 0 | 22 | 118 | 18 | 12 | 5 | 0% | 1.6 | 10.4% | 12.7% | -2.3% | 1.6% | 9.00 | 4.69 | — |
| 2023 | 19 | ROK | DSL Guardians Red | 14 | 0 | 22 | 118 | 18 | 12 | 5 | 0% | 1.6 | 15.3% | 10.2% | 5.1% | 4.2% | 9.00 | 6.05 | — |
| 2024 | 20 | ROK | DSL CLE Goryl | 13 | 0 | 24 | 115 | 22 | 14 | 1 | 0% | 1.9 | 13.0% | 15.2% | -2.2% | 0.7% | 4.81 | 4.32 | — |
| 2024 | 20 | ROK | DSL CLE Goryl | 13 | 0 | 24 | 115 | 22 | 14 | 1 | 0% | 1.9 | 19.1% | 12.2% | 7.0% | 0.9% | 4.81 | 3.55 | — |
| 2025 | 21 | ROK | ACL Guardians | 21 | 0 | 29 | 126 | 32 | 18 | 2 | 0% | 1.4 | 17.3% | 17.9% | -0.6% | 1.3% | 3.77 | 4.59 | — |
| 2025 | 21 | ROK | ACL Guardians | 21 | 0 | 29 | 126 | 32 | 18 | 2 | 0% | 1.4 | 25.4% | 14.3% | 11.1% | 1.6% | 3.77 | 3.66 | — |
| ▸ 2026 Season | |||||||||||||||||||
| 2026 | 22 | ROK | ACL Guardians | 15 | 0 | 12 | 70 | 10 | 12 | 2 | 0% | 0.8 | 9.7% | 21.4% | -11.7% | 4.0% | 13.86 | 7.19 | -0.4 |
| ROS | 22 | MLB | CLE | 15 | 0 | 16 | 67 | 15 | 7 | 2 | 0% | 1.1 | 22.4% | 10.1% | 12.3% | 2.9% | 4.46 | 4.46 | +0.0 |
| ROS | 22 | MLB | CLE | — | — | 0 | — | — | — | — | — | — | 22.4% | 10.1% | 12.3% | 2.9% | 4.46 | 4.46 | — |
| 2026 TOT | 22 | MLB | CLE | — | — | 28 | 137 | 25 | 19 | 4 | — | — | 18.3% | 13.7% | 4.6% | 2.9% | 8.57 | 5.65 | -0.4 |
| ▸ 2027+ Projections WITH CONTEXT · MLB TIME ONLY ⓘ | |||||||||||||||||||
| 2027 | 23 | MLB | CLE | 19 | 0 | 20 | 84 | 20 | 8 | 2 | 0% | 1.1 | 23.3% | 9.5% | 13.8% | 2.9% | 4.35 | 4.28 | +0.1 |
| 2027 | 23 | MLB | CLE | 10 | 0 | 10 | 42 | 10 | 4 | 1 | 0% | 1.0 | 23.3% | 9.5% | 13.8% | 2.9% | 4.35 | 4.28 | +0.0 |
| ▸ Career (MLB actual + context projections) | |||||||||||||||||||
| Career | — | 9 | 0 | 10 | 42 | 10 | 4 | 1 | 0% | 1.1 | 23.3% | 9.5% | 13.8% | 2.9% | 4.35 | 3.90 | +0.1 | ||
| / 200 IP | — | 190 | 0 | 200 | 844 | 203 | 81 | 20 | 0% | 1.1 | 23.3% | 9.5% | 13.8% | 2.9% | 4.35 | 3.90 | +3.5 | ||
| Career | — | 82 | 0 | 115 | 550 | 69 | 80 | 10 | 0% | 1.4 | 12.5% | 14.5% | -2.1% | 1.8% | 5.93 | 4.89 | +0.7 | ||
| / 200 IP | — | 142 | 0 | 200 | 954 | 119 | 139 | 17 | 0% | 1.4 | 12.5% | 14.5% | -2.1% | 1.8% | 5.93 | 4.89 | +1.2 | ||
Career Path Comps
What happened to similar pitchers from this age · Y-axis: ERA+ (100 = league avg, 150 = elite, 80 = below) · Bands: P10–P90 outer, P25–P75 inner · Gold: OGILVIE projection
| Profile at Match Age | Next 3 Yrs | Career | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comp | Age | Role | FIP | K% | BB% | HR/BF | BABIP | FIP | K% | K-BB% | IP | ΔFIP | Low FIP | IP | Match |
| Diovel Mariano (OGILVIE) | — | — | 4.46 | 22.4% | 10.1% | 2.9% | — | 4.28 | 23.3% | 13.8% | 20 | -0.18 | — | — | — |
| Heath Holder R 2027 · 4.16 FIP | 23 | SU | 4.16 | 21.1% | 10.1% | 2.8% | .287 | 3.13 | 22.3% | 13.1% | 247 | -1.03 | 2.74 | 367 | 91 |
| Corey Copping R 2026 · 4.12 FIP | 22 | SU | 4.12 | 21.4% | 8.7% | 3.1% | .265 | 4.55 | 19.6% | 6.7% | 179 | +0.43 | 3.41 | 214 | 91 |
| Peyton Williams R 2027 · 3.53 FIP | 23 | SU | 3.53 | 22.3% | 10.3% | 1.8% | .311 | 5.00 | 22.2% | 10.2% | 100 | +1.47 | 3.53 | 123 | 90 |
| Michael Gomez R 2026 · 3.38 FIP | 22 | SU | 3.38 | 22.6% | 9.2% | 1.9% | .283 | 3.78 | 17.9% | 8.3% | 110 | +0.40 | 3.33 | 286 | 89 |
| Kenny Oakley R 2026 · 3.50 FIP | 22 | SU | 3.50 | 23.8% | 9.1% | 2.3% | .348 | 3.65 | 17.3% | 7.8% | 115 | +0.15 | 3.00 | 144 | 88 |
| Cody Palmquist R 2026 · 4.04 FIP | 22 | SU | 4.04 | 21.9% | 9.0% | 3.0% | .278 | 5.78 | 14.7% | 7.1% | 62 | +1.74 | 4.04 | 104 | 88 |
| Ricardo Velez R 2028 · 4.48 FIP | 24 | SU | 4.48 | 22.4% | 10.9% | 3.5% | .261 | 4.12 | 18.8% | 8.1% | 138 | -0.36 | 3.77 | 166 | 88 |
| Austin Smith R 2027 · 4.00 FIP | 23 | SU | 4.00 | 22.7% | 10.0% | 2.8% | .274 | 5.05 | 16.3% | 0.7% | 52 | +1.05 | 4.00 | 134 | 88 |
| Jonathan Brand R 2027 · 3.95 FIP | 23 | SU | 3.95 | 22.7% | 10.8% | 2.5% | .236 | 4.09 | 19.8% | 9.0% | 134 | +0.14 | 3.24 | 172 | 88 |
| Luke Bell R 2027 · 3.89 FIP | 23 | SU | 3.89 | 20.4% | 9.9% | 2.3% | .295 | 5.85 | 13.1% | 1.3% | 66 | +1.96 | 3.89 | 110 | 88 |
| Collin Kober R 2026 · 3.39 FIP | 22 | SU | 3.39 | 21.3% | 7.5% | 2.1% | .268 | 3.04 | 24.0% | 17.9% | 128 | -0.35 | 2.40 | 294 | 87 |
| Caleb Freeman R 2025 · 3.98 FIP | 21 | SU | 3.98 | 24.6% | 12.9% | 2.4% | .267 | 5.17 | 21.7% | 8.1% | 58 | +1.19 | 3.98 | 222 | 87 |
| Addison Russ R 2026 · 3.90 FIP | 22 | SU | 3.90 | 22.2% | 7.9% | 3.1% | .324 | 3.02 | 25.6% | 17.5% | 121 | -0.88 | 2.96 | 194 | 87 |
| Tyler Bray R 2027 · 4.08 FIP | 23 | SU | 4.08 | 22.3% | 9.1% | 3.1% | .356 | 3.17 | 17.9% | 7.6% | 114 | -0.91 | 2.81 | 152 | 87 |
| Reilly Hovis R 2027 · 4.03 FIP | 23 | SU | 4.03 | 21.1% | 7.7% | 3.2% | .250 | 4.41 | 19.8% | 6.4% | 50 | +0.38 | 4.03 | 130 | 87 |
| Mason Fox R 2025 · 3.59 FIP | 21 | SU | 3.59 | 21.9% | 11.5% | 1.6% | .260 | 7.31 | 21.3% | 4.8% | 30 | +3.72 | 3.59 | 112 | 87 |
| Nic Enright R 2026 · 3.63 FIP | 22 | SU | 3.63 | 24.6% | 12.2% | 1.9% | .263 | 3.12 | 29.6% | 23.5% | 124 | -0.51 | 0.50 | 249 | 87 |
| Owen Holt R 2027 · 3.89 FIP | 23 | SU | 3.89 | 20.7% | 10.2% | 2.3% | .258 | 4.52 | 18.7% | 6.4% | 107 | +0.63 | 3.89 | 145 | 87 |
| Scott Williams R 2026 · 4.49 FIP | 22 | SU | 4.49 | 20.2% | 10.6% | 3.2% | .256 | 2.90 | 18.5% | 11.2% | 42 | -1.59 | 2.90 | 119 | 86 |
| Vince Vannelle R 2028 · 3.77 FIP | 24 | SU | 3.77 | 19.9% | 8.6% | 2.3% | .282 | 5.34 | 15.3% | 4.5% | 76 | +1.57 | 3.77 | 105 | 86 |