Bjorn Johnson P Wisconsin Timber Rattlers
+0.0 WAR
Age 21 LHP 6'3" / 201 lbs A+ Svc 0.0 · Ctrl thru 2035 peak 0.7 · 2029
ERA4.52
FIP4.52
xFIP
SIERA
K%21.6%
BB%11.1%
K-BB%10.5%
IP55
trajectory · 10 yrs
0.7peak
2029
K†5060

Career (MLE) + Projections

Park-neutral MLB-equivalent. MiLB translated via MLE factors. FIP-based WAR vs replacement FIP=5.3 (SP) / 4.95 (RP, <80 IP). FIP+ = runs above league-avg FIP · REP = replacement-level bonus.

YearAge LvlTeam GGSIPBF KBBHR K%BB%HR% ERAFIP WAR
202419ROKACL Brewers8619991618111.0%22.7%1.6%8.385.91-0.2
202520ACarolina Mudcats300733097538218.0%14.5%0.7%4.333.81+1.0
▸ 2026 Season
202621A+Wisconsin Timber Rattlers202113109.00
ROS21MLBMIL55552325026621.6%11.1%2.6%4.524.52+0.3
2026 Total21MLBMIL572435327621.8%11.0%2.5%4.684.36+0.4
▸ 2027+ Projections — Marcel base + age-bracket aging
202722MLBMIL58582435525622.7%10.1%2.6%4.374.28+0.4
202823MLBMIL60602525924723.4%9.4%2.6%4.224.12+0.6
202924MLBMIL1111612596223724.0%9.0%2.6%4.114.02+0.7
203025MLBMIL1111622626423724.3%8.8%2.6%4.023.96+0.7
203126MLBMIL1111622626423724.5%8.8%2.6%3.973.94+0.7
203227MLBMIL1111622606423724.6%8.8%2.6%3.963.95+0.7
203328MLBMIL1111612566323724.5%8.8%2.6%3.973.98+0.7
203429MLBMIL59592506122724.4%8.9%2.7%4.004.02+0.6
203530MLBMIL58582435922724.2%9.0%2.7%4.054.08+0.6
203631MLBMIL56562345621724.0%9.2%2.8%4.114.16+0.5
203732MLBMIL53532255321623.7%9.3%2.9%4.194.24+0.4
203833MLBMIL51512155020623.4%9.5%3.0%4.284.34+0.4
203934MLBMIL48482044720623.0%9.7%3.1%4.384.45+0.3
▸ Career (all levels · actual + projected)
Career406944196968416.6%16.3%0.9%5.274.26+1.1
/ 200 IP8513200891147145916.6%16.3%0.9%5.274.26+2.4

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
CompAgeRole FIPK%BB%HR/BFBABIP FIPK%K-BB%IP ΔFIPLow FIPIPMatch
Bjorn Johnson (OGILVIE) 4.52 21.6%11.1%2.6% 4.14 23.4%13.9%179 -0.38
Keylan Killgore L 2027 · 4.24 FIP 22 SW 4.24 20.7%12.7%2.3%.307 3.76 161 94
Jeremy Wu-Yelland L 2027 · 4.47 FIP 22 SW 4.47 19.6%14.6%2.1%.266 3.91 20.3%3.7%33 -0.56 2.97 146 90
Will Mabrey L 2027 · 4.26 FIP 22 SW 4.26 18.5%12.6%2.1%.256 4.29 19.2%7.0%46 +0.03 4.26 112 90
Joe Kemlage L 2028 · 4.41 FIP 23 SW 4.41 19.4%13.5%2.2%.278 5.32 17.6%5.9%65 +0.91 4.41 128 90
Evan Shawver L 2027 · 4.28 FIP 22 SW 4.28 18.8%10.6%2.6%.289 4.77 18.0%4.0%152 +0.49 4.09 219 89
Avery Short L 2026 · 4.75 FIP 21 SW 4.75 20.1%11.4%3.5%.346 4.75 15.0%6.4%271 +0.00 4.23 387 88
Chase Watkins L 2027 · 3.74 FIP 22 SW 3.74 20.6%11.8%1.6%.346 4.33 17.7%9.0%156 +0.59 3.29 213 87
Nate Peterson L 2028 · 4.45 FIP 23 SW 4.45 18.4%11.4%2.7%.284 4.96 17.1%5.7%161 +0.51 4.32 236 87
Sam Weatherly L 2027 · 4.04 FIP 22 SW 4.04 24.0%12.8%2.5%.323 4.14 21.9%8.9%41 +0.10 4.04 158 87
Bailey Horn L 2028 · 4.96 FIP 23 SW 4.96 19.7%12.7%3.5%.300 4.72 22.7%9.5%152 -0.24 3.96 265 86
Andrew Walling L 2028 · 4.20 FIP 23 SW 4.20 23.7%14.8%2.2%.272 3.66 22.0%9.8%95 -0.54 3.14 151 86
Kyle Twomey L 2027 · 4.07 FIP 22 SW 4.07 17.6%10.5%2.1%.298 3.95 14.8%6.9%68 -0.12 3.95 141 86
Caden Monke L 2027 · 5.47 FIP 22 SW 5.47 18.9%12.8%4.3%.323 5.37 19.0%-0.3%51 -0.10 5.37 118 85
Dante Biasi L 2028 · 4.91 FIP 23 SW 4.91 21.5%12.6%3.7%.251 5.64 19.3%2.3%153 +0.73 4.91 224 85
Felix Carvallo L 2026 · 4.57 FIP 21 SW 4.57 17.1%9.8%3.1%.323 4.52 17.7%4.7%67 -0.05 4.52 132 85
Connor Oliver L 2028 · 4.35 FIP 23 SW 4.35 17.3%12.1%2.1%.314 6.49 18.6%0.1%50 +2.14 4.35 129 85
Jonathan Hennigan L 2027 · 4.03 FIP 22 SU 4.03 22.0%13.6%1.9%.341 3.57 17.5%5.8%119 -0.46 3.46 265 84
Daniel Brown L 2027 · 3.79 FIP 22 SW 3.79 17.9%12.7%1.1%.327 4.22 16.9%3.2%112 +0.43 3.79 184 84
Chazz Martinez L 2028 · 3.77 FIP 23 SW 3.77 22.2%12.7%1.7%.361 3.47 20.6%7.7%125 -0.30 3.15 189 84
Mark Manfredi Sr. L 2029 · 4.61 FIP 24 SW 4.61 22.0%14.9%2.7%.289 3.60 24.1%7.7%60 -1.01 3.60 136 84

Contract

ESTIMATED  ·  service-time + WAR-based estimator (needs verification)
Status   MiLB
MLB Debut   2030
Service   0 yrs (est)
Team Control Through   2035
First FA Year   2036
YearStatusSalary Proj WAR Value Surplus
2026MiLBstill in minors · estimated debut 2030
2027MiLBstill in minors · estimated debut 2030
2028MiLBstill in minors · estimated debut 2030
2029MiLBstill in minors · estimated debut 2030
2030Arb-2$0.9M+0.7$3M+$2M
2031Arb-3$0.9M+0.7$3M+$2M
2032Ext / FA-deal$0.9M+0.7$3M+$2M
2033Ext / FA-deal$1M+0.7$3M+$2M
2034Ext / FA-deal$1M+0.6$3M+$2M
2035Ext / FA-deal$2M+0.6$3M+$1M
Totals $7M $19M +$12M