Down on the Farm: The Seattle Mariners – September 2026
Down on the farm: Seattle Mariners
September 2026 – powered by OOPSY peak projections
5top 100 prospects
23.8avg prospect age
Kade Anderson#1 ranked prospect
Top 10 prospects
1
Kade Anderson
SP MLB — Age 21
3.26 ERA, 150 IP, 42 BB, 162 K, 9.7 K/9, 1.18 WHIP — 4.2 WAR
Stuff 60Command 60Power 55
2
Ryan Sloan +19
SP AA — Age 20
3.30 ERA, 140 IP, 37 BB, 130 K, 8.4 K/9, 1.21 WHIP — 4.0 WAR
Stuff 70Command 80Power 50
3
Lazaro Montes
RF MLB — Age 21
139.2 wRC+, 0.257/0.350/0.516, 35 HR, 3 SB, 85 Runs, 92 RBI — 4.0 WAR
Hit 50Power 70Speed 40
4
Michael Arroyo
2B MLB — Age 21
121.9 wRC+, 0.259/0.349/0.441, 21 HR, 9 SB, 79 Runs, 74 RBI — 3.3 WAR
Hit 55Power 55Speed 50
5
Boston Smith -6
C AA — Age 23
113.0 wRC+, 0.225/0.334/0.424, 26 HR, 1 SB, 76 Runs, 72 RBI — 3.2 WAR
Hit 50Power 60Speed 30
6
Luke Stevenson -50
C A+ — Age 21
94.9 wRC+, 0.206/0.330/0.349, 16 HR, 3 SB, 66 Runs, 60 RBI — 2.2 WAR
Hit 50Power 50Speed 40
7
Felnin Celesten -113
SS AA — Age 20
95.8 wRC+, 0.245/0.310/0.395, 16 HR, 16 SB, 70 Runs, 66 RBI — 2.2 WAR
Hit 50Power 50Speed 50
8
Mason Peters -238
SP A+ — Age 22
4.05 ERA, 106 IP, 44 BB, 98 K, 8.3 K/9, 1.38 WHIP — 2.1 WAR
Stuff 55Command 55Power 50
9
Eduardo Ponce -87
C CPX — Age 19
86.3 wRC+, 0.227/0.306/0.357, 15 HR, 2 SB, 62 Runs, 60 RBI — 1.9 WAR
Hit 55Power 50Speed 40
10
Colton Shaw +34
SP A+ — Age 23
4.44 ERA, 149 IP, 45 BB, 107 K, 6.5 K/9, 1.37 WHIP — 1.7 WAR
Stuff 50Command 80Power 30
11
Jonny FarmeloCF
AA — 21 — 89.9 wRC+, 0.219/0.315/0.358 — 1.6 WAR
Jonny FarmeloCF
AA — 21 — 89.9 wRC+, 0.219/0.315/0.358 — 1.6 WAR
12
Brennen DavisLF
AAA — 26 — 97.2 wRC+, 0.224/0.310/0.397 — 1.3 WAR
Brennen DavisLF
AAA — 26 — 97.2 wRC+, 0.224/0.310/0.397 — 1.3 WAR
13
Nick BeckerSS
A — 19 — 73.2 wRC+, 0.194/0.302/0.302 — 1.3 WAR
Nick BeckerSS
A — 19 — 73.2 wRC+, 0.194/0.302/0.302 — 1.3 WAR
14
Cole WilcoxSP
MLB — 26 — 4.21 ERA, 89 IP — 1.3 WAR
Cole WilcoxSP
MLB — 26 — 4.21 ERA, 89 IP — 1.3 WAR
15
Lucas KellyRP
AA — 22 — 4.08 ERA, 44 IP — 1.2 WAR
Lucas KellyRP
AA — 22 — 4.08 ERA, 44 IP — 1.2 WAR
16
Jhonathan DiazSP
MLB — 29 — 4.74 ERA, 157 IP — 1.1 WAR
Jhonathan DiazSP
MLB — 29 — 4.74 ERA, 157 IP — 1.1 WAR
17
Josh CaronC
AA — 22 — 73.2 wRC+, 0.209/0.274/0.354 — 1.1 WAR
Josh CaronC
AA — 22 — 73.2 wRC+, 0.209/0.274/0.354 — 1.1 WAR
18
Ace ReeseLF
A — 21 — — 1.1 WAR
Ace ReeseLF
A — 21 — — 1.1 WAR
19
Jakson ReetzC
MLB — 30 — 77.5 wRC+, 0.210/0.287/0.351 — 1.1 WAR
Jakson ReetzC
MLB — 30 — 77.5 wRC+, 0.210/0.287/0.351 — 1.1 WAR
20
Willie MacIverC
MLB — 29 — 79.6 wRC+, 0.224/0.292/0.353 — 1.0 WAR
Willie MacIverC
MLB — 29 — 79.6 wRC+, 0.224/0.292/0.353 — 1.0 WAR
21
Peyton AlfordRP
AAA — 28 — 4.16 ERA, 41 IP — 1.0 WAR
Peyton AlfordRP
AAA — 28 — 4.16 ERA, 41 IP — 1.0 WAR
22
Charlie BeilensonRP
AAA — 26 — 4.22 ERA, 41 IP — 1.0 WAR
Charlie BeilensonRP
AAA — 26 — 4.22 ERA, 41 IP — 1.0 WAR
23
Nick GarciaRP
AAA — 27 — 4.30 ERA, 46 IP — 0.9 WAR
Nick GarciaRP
AAA — 27 — 4.30 ERA, 46 IP — 0.9 WAR
24
Josh SimpsonRP
MLB — 28 — 3.94 ERA, 37 IP — 0.9 WAR
Josh SimpsonRP
MLB — 28 — 3.94 ERA, 37 IP — 0.9 WAR
25
Austin Shenton3B
MLB — 28 — 89.5 wRC+, 0.216/0.301/0.376 — 0.9 WAR
Austin Shenton3B
MLB — 28 — 89.5 wRC+, 0.216/0.301/0.376 — 0.9 WAR
26
Victor LabradaLF
AAA — 26 — 78.6 wRC+, 0.223/0.303/0.330 — 0.8 WAR
Victor LabradaLF
AAA — 26 — 78.6 wRC+, 0.223/0.303/0.330 — 0.8 WAR
27
Korbyn DickersonCF
A+ — 22 — 76.8 wRC+, 0.214/0.293/0.338 — 0.8 WAR
Korbyn DickersonCF
A+ — 22 — 76.8 wRC+, 0.214/0.293/0.338 — 0.8 WAR
28
Connor CharpingC
AA — 27 — 74.9 wRC+, 0.213/0.306/0.305 — 0.8 WAR
Connor CharpingC
AA — 27 — 74.9 wRC+, 0.213/0.306/0.305 — 0.8 WAR
29
Jackson SteensmaSP
A — 22 — 4.55 ERA, 88 IP — 0.8 WAR
Jackson SteensmaSP
A — 22 — 4.55 ERA, 88 IP — 0.8 WAR
30
Charlie Pagliarini2B
AA — 25 — 87.7 wRC+, 0.209/0.295/0.379 — 0.7 WAR
Charlie Pagliarini2B
AA — 25 — 87.7 wRC+, 0.209/0.295/0.379 — 0.7 WAR
Future depth chart (peak projections)
C
Cal Raleigh
Boston Smith
Luke Stevenson
1B
Patrick Wisdom
Josh Naylor
Donovan Solano
2B
Cole Young
Michael Arroyo
Brendan Donovan
SS
Colt Emerson
Felnin Celesten
J.P. Crawford
3B
Austin Shenton
Miles Mastrobuoni
Caleb Cali
LF
Randy Arozarena
Taylor Ward
Brennen Davis
CF
Julio Rodriguez
Jonny Farmelo
Korbyn Dickerson
RF
Lazaro Montes
Dominic Canzone
Luke Raley
Projected rotation and bullpen
Starting rotation
SP1Kade Anderson3.26 ERA, 150 IP, 162 K
SP2Logan Gilbert3.48 ERA, 183 IP, 192 K
SP3Bryan Woo3.56 ERA, 184 IP, 178 K
SP4Ryan Sloan3.30 ERA, 140 IP, 130 K
SP5George Kirby3.88 ERA, 186 IP, 160 K
DepthBryce Miller4.07 ERA, 164 IP, 151 K
DepthEmerson Hancock4.27 ERA, 163 IP, 134 K
DepthMason Peters4.05 ERA, 106 IP, 98 K
DepthColton Shaw4.44 ERA, 149 IP, 107 K
DepthCooper Criswell4.24 ERA, 99 IP, 78 K
Bullpen
CloserAndres Munoz2.69 ERA, 31 IP, 41 K
SetupJose A. Ferrer3.18 ERA, 33 IP, 30 K
SetupMatt Brash3.52 ERA, 28 IP, 30 K
Next upGabe Speier3.48 ERA, 27 IP, 28 K
Next upMichael Rucker3.70 ERA, 38 IP, 38 K
DepthCarlos Vargas3.87 ERA, 36 IP, 29 K
DepthLucas Kelly4.08 ERA, 44 IP, 48 K
DepthSeranthony Dominguez3.73 ERA, 30 IP, 33 K
DepthPeyton Alford4.16 ERA, 41 IP, 42 K
DepthCharlie Beilenson4.22 ERA, 41 IP, 38 K
Top prospects by tool
Hit
Michael Arroyo 55
Eduardo Ponce 55
Ace Reese 55
Power
Lazaro Montes 70
Boston Smith 60
Michael Arroyo 55
Speed
Blake Rambusch 70
Jonny Farmelo 60
Nick Becker 60
Stuff
Ryan Sloan 70
Kade Anderson 60
Mason Peters 55
Command
Ryan Sloan 80
Colton Shaw 80
Gabe Mosser 70
Power (arm)
Lucas Kelly 60
Kade Anderson 55
Cole Wilcox 55
Projections update daily for members. Full leaderboard, trade analyzer, and more for $5/month.