Riley O'Brien P St. Louis Cardinals
+0.7 WAR
Age 31 RHP 6'4" / 180 lbs MLB Svc 1.0 · Ctrl thru 2030 peak 0.7 · 2026
ERA3.11
FIP3.80
xFIP1.64
SIERA0.92
K%24.6%
BB%10.0%
K-BB%14.6%
IP46
trajectory · 10 yrs
0.7peak
2026
K†6060
FB+5.8 (59%)
SL+0.8 (40%)
SI (59%)

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
201722ROKPrinceton Rays1110411594017117.1%13.4%0.9%2.203.83+0.5
201823A+Charlotte Stone Crabs25138835710341421.7%13.4%1.5%2.753.77+1.4
201924AAMontgomery Biscuits201710342910744619.9%11.5%1.8%3.163.89+1.6
202126MLBCincinnati Reds2423114499123571821.7%11.6%3.3%4.664.53+1.0
202227MLBSeattle Mariners341412014831521.1%16.1%2.5%6.864.75+0.1
202328AAATacoma Rainiers513552288630233.2%13.8%0.9%2.292.52+1.5
202429MLBSt. Louis Cardinals22021982013215.2%10.1%0.0%5.063.09+0.4
202530MLBSt. Louis Cardinals610672857728325.7%10.0%1.2%2.272.86+1.6
▸ 2026 Season
202631MLBSt. Louis Cardinals100103511000.00
ROS31MLBCIN36361524115326.9%10.0%2.0%3.053.60+0.6
2026 Total31MLBCIN461875215327.7%8.1%1.7%2.372.80+1.1
▸ 2027+ Projections — Marcel base + age-bracket aging
202732MLBCIN44441885017426.5%9.2%2.1%3.303.57+0.7
202833MLBCIN42421794617425.6%9.4%2.3%3.593.75+0.6
202934MLBCIN40401714216424.8%9.6%2.4%3.803.92+0.5
203035MLBCIN38381613916424.0%9.8%2.5%3.974.08+0.4
203136MLBCIN36361503515423.3%10.1%2.6%4.134.24+0.3
203237MLBCIN33331393114422.4%10.3%2.8%4.304.42+0.2
203338MLBCIN30301282814421.6%10.7%2.9%4.484.60+0.1
▸ Career (all levels · actual + projected)
Career2586754122915152784122.5%12.1%1.8%3.433.73+9.6
/ 200 IP95252008471911031522.5%12.1%1.8%3.433.73+3.6

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
Riley O'Brien (OGILVIE) 3.60 26.9%10.0%2.0% 3.74 25.7%16.3%127 +0.14
John Axford R 2027 · 3.28 FIP 32 SW 3.28 24.8%11.2%1.6%.333 3.94 21.5%11.1%141 +0.66 3.28 197 82
Hirokazu Sawamura R 2028 · 4.47 FIP 33 SW 4.47 26.2%11.2%3.9%.263 3.98 18.1%6.8%51 -0.49 3.98 104 75
Tom Wilhelmsen R 2026 · 3.11 FIP 31 SW 3.11 22.5%9.7%1.2%.298 5.81 13.8%4.1%86 +2.70 3.11 148 72
Oliver Drake R 2026 · 2.91 FIP 31 SU 2.91 24.4%7.7%1.6%.348 3.26 33.5%25.4%80 +0.35 2.26 317 72
Héctor Rondón R 2026 · 4.58 FIP 31 SW 4.58 18.7%7.8%3.8%.257 5.67 23.7%14.4%20 +1.09 2.33 318 72
Jake Petricka R 2026 · 3.04 FIP 31 SU 3.04 23.4%7.7%1.7%.323 4.02 18.8%10.8%60 +0.98 3.04 252 71
Mike Broadway R 2026 · 4.63 FIP 31 SU 4.63 23.0%10.6%3.9%.282 1.74 195 71
Blake Wood R 2026 · 3.35 FIP 31 SW 3.35 25.3%9.3%2.2%.364 2.91 210 71
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 70
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 70
Luis García R 2026 · 3.04 FIP 31 SU 3.04 25.0%8.3%1.8%.341 4.21 22.5%13.9%113 +1.17 2.26 602 70
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 70
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 69
Ryan Cook R 2026 · 3.85 FIP 31 SW 3.85 25.1%10.8%2.7%.280 3.85 102 69
Chad Gaudin R 2028 · 2.66 FIP 33 SU 2.66 22.8%6.8%1.1%.325 3.16 21.8%13.9%58 +0.50 2.02 102 69
Jeremy Jeffress R 2026 · 3.53 FIP 31 SW 3.53 20.4%7.6%2.2%.312 3.71 19.3%6.8%23 +0.18 2.41 343 68
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 68
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 68
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 68
Robert Stock R 2026 · 4.16 FIP 31 SU 4.16 23.0%8.5%3.5%.301 7.43 14.7%-1.9%23 +3.27 2.91 334 67

Contract

ESTIMATED  ·  service-time + WAR-based estimator (needs verification)
Status   Pre-Arb
MLB Debut   2024
Service   1.750 yrs.days
Team Control Through   2030
First FA Year   2027
YearStatusSalary Proj WAR Value Surplus
2026Pre-Arb$0.8M+0.7$3M+$2M
2027Pre-Arb$0.8M+0.7$3M+$2M
2028Arb-1$2M+0.6$3M+$1M
2029Arb-2$2M+0.5$2M+$0.1M
2030Arb-3$2M+0.4$2M+$0.0M (cut)
Totals $7M $12M +$5M