J.B. Olson P Charlotte Knights
+0.1 WAR
Age 31 RHP 6'2" / 195 lbs AAA peak 0.1 · 2026
ERA4.45
FIP4.45
xFIP
SIERA
K%22.4%
BB%9.2%
K-BB%13.2%
IP23
trajectory · 10 yrs
0.1peak
2026
K†5555

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
201722AKannapolis Intimidators23033135313316.4%2.7%3.2%2.203.83+0.4
201924AKannapolis Intimidators260421923918415.0%11.1%3.3%5.835.02-0.0
202126AABirmingham Barons31045196367514.1%4.1%3.0%6.004.05+0.5
202227AAACharlotte Knights50167031457311115.8%9.9%2.6%5.944.44+0.5
202328AAACharlotte Knights151291432112712.9%8.8%4.9%10.995.79-0.3
▸ 2026 Season
202631MLBCWS232396219322.4%9.2%3.1%4.454.45+0.1
▸ 2027+ Projections — Marcel base + age-bracket aging
202732MLBCWS222292209322.2%9.3%3.2%4.484.52+0.1
▸ Career (all levels · actual + projected)
Career14517218980147773115.0%7.8%3.2%6.044.59+1.8
/ 200 IP13316200900135712815.0%7.8%3.2%6.044.59+1.6

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
J.B. Olson (OGILVIE) 4.45 22.4%9.2%3.1% 4.52 22.2%12.9%22 +0.07
Fernando Nieve R 2028 · 4.26 FIP 33 SU 4.26 22.0%10.5%3.1%.290 2.44 26.9%22.6%89 -1.82 1.94 112 93
Chris Hatcher R 2026 · 4.83 FIP 31 SU 4.83 23.8%9.4%4.6%.283 4.53 22.0%13.8%96 -0.30 2.93 176 86
Mike Broadway R 2026 · 4.63 FIP 31 SU 4.63 23.0%10.6%3.9%.282 1.74 195 84
Ryan Cook R 2026 · 3.85 FIP 31 SW 3.85 25.1%10.8%2.7%.280 3.85 102 81
Mark Serrano R 2026 · 3.63 FIP 31 SU 3.63 21.9%6.4%2.9%.240 5.25 20.2%12.3%42 +1.62 3.10 120 81
Jonathan Broxton R 2026 · 3.73 FIP 31 SW 3.73 24.5%8.2%3.0%.325 3.80 21.7%13.5%76 +0.07 3.65 137 80
Brian Schlitter R 2025 · 3.31 FIP 30 SU 3.31 20.6%10.8%1.1%.333 3.78 14.4%6.6%110 +0.47 3.31 244 80
Ross Ohlendorf R 2027 · 3.33 FIP 32 SW 3.33 23.7%7.2%2.4%.342 4.98 23.4%12.7%66 +1.65 3.33 122 79
Logan Kensing R 2028 · 3.61 FIP 33 SU 3.61 17.6%8.8%1.6%.270 3.06 17.9%10.0%124 -0.55 2.72 172 79
Adrian Ramirez R 2026 · 4.20 FIP 31 SU 4.20 21.7%6.3%3.9%.327 3.06 137 78
Andrew Robinson R 2024 · 4.33 FIP 29 SU 4.33 23.4%8.8%3.8%.245 3.25 160 78
Brandon Morrow R 2026 · 3.51 FIP 31 SU 3.51 18.3%5.6%2.3%.280 3.50 21.2%14.8%153 -0.01 2.67 186 78
Daniel Hudson R 2026 · 3.89 FIP 31 SU 3.89 22.3%8.6%2.9%.246 3.65 28.8%20.4%145 -0.24 1.69 468 78
Kevin Jepsen R 2026 · 3.46 FIP 31 SW 3.46 20.7%9.1%1.7%.241 5.68 16.9%7.2%90 +2.22 3.46 160 77
Jon Edwards R 2026 · 4.43 FIP 31 SU 4.43 25.1%11.6%3.6%.290 2.39 132 77
Carlos Fisher R 2027 · 3.45 FIP 32 SW 3.45 22.6%11.6%1.4%.236 3.18 22.5%11.1%91 -0.27 2.48 147 77
Zack Segovia R 2027 · 4.81 FIP 32 SU 4.81 15.0%8.3%3.5%.314 3.37 20.2%14.3%39 -1.44 3.37 144 76
Joakim Soria R 2026 · 3.48 FIP 31 SW 3.48 23.5%6.6%2.8%.258 2.91 26.6%18.9%183 -0.57 2.00 380 76
Brad Brach R 2026 · 3.39 FIP 31 SW 3.39 25.5%9.1%2.4%.254 3.70 22.8%11.1%129 +0.31 2.80 410 76
Edwin Jackson R 2026 · 3.75 FIP 31 SW 3.75 17.5%8.8%1.9%.244 4.71 17.6%7.8%377 +0.96 3.75 521 76

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.