Riley O'Brien

Active on MLB Roster | St. Louis Cardinals
High Level
MLB
Years
2014-2025 (2021-2025)
Proper Name
Riley Chun-Young O'Brien
Positions
P (248)
Height / Weight
6-4 / 180
Bats / Throws
Right / Right
Birthdate
February 6,1995   Age:  30.344
High School
Shorewood (Shoreline,WA)
Colleges
College of Idaho (Caldwell,ID), Everett Community College (Everett,WA)
Drafted/Signed
Signing Bonus
$ 7,500
Service Time
1.129 (2025)
MLBAM ID
Retrosheet#
obrir001
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Prospect Rankings

CSV
Glossary
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yearsourcetypeteamrankview rankings
2020Baseball AmericaTeamTampa Bay Rays21View Rankings
2020FanGraphsTeamTampa Bay Rays24View Rankings
2020MLB PipelineTeamTampa Bay Rays18View Rankings
2021Baseball AmericaTeamCincinnati Reds25View Rankings
2021MLB PipelineTeamCincinnati Reds16View Rankings
5 record(s)
Prospect rankings are available since 1990 and are based on pre-season rankings from various ranking sites.

Scouting Grades

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1 record(s)

Pitching Statistics

CSV
Glossary
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yearteam nameleaguelevelmlb#agewleraggscgshogrgfsviphrerhrbbsowpbkhbwhiph9hr9bb9so9ra9so/bb
2014Everett CCNWACNWAC  19016.08420020013.12211907125022.1814.850.004.738.107.431.71
2015Everett CCNWACNWAC  20004.1561005008.277438100011.737.273.128.3110.387.271.25
2017Col of IdahoCascadeNAIA  22342.1520600140467.0502516023816061.096.720.003.0910.883.363.52
2017Princeton RaysAppRkTBA1522102.2011100010041.0281010117403041.106.150.223.738.782.202.35
2018Bowling Green Hot RodsMidwATBA-23412.0515500103048.1231411321665020.914.280.563.9112.292.613.14
2018Charlotte Stone CrabsFSLA+TBA-23433.601081120040.0361816121374001.438.100.234.738.334.051.76
2019Charlotte Stone CrabsFSLA+TBA-24201.59660000034.02086215353011.035.290.533.979.262.122.33
2019Montgomery BiscuitsSouAATBA-24563.9314111130068.2563330429728061.247.340.523.809.444.332.48
2021Louisville BatsIL2AAACIN2126774.55232200100112.2935957165512170101.317.431.284.399.674.712.20
2021Cincinnati RedsNLMLBCIN57260113.5011000001.12222320003.7513.5013.5020.2513.5013.500.67
2022Tacoma RainiersPCL2AAASEA4627137.1232100314036.2433629429433051.9610.550.987.1210.558.841.48
2022Louisville BatsIL2AAACIN2127006.0010001003.02221141001.006.003.003.0012.006.004.00
2022Seattle MarinersALMLBSEA6127000.0010001101.01000110002.009.000.009.009.000.001.00
2023Tacoma RainiersPCL2AAASEA4628252.295130048261555.0361914231863051.225.890.335.0714.073.112.77
2024Memphis RedbirdsIL2AAASLN2729101.3514000141113.18320591000.985.400.003.386.082.031.80
2024St. Louis CardinalsNLMLBSLN55290011.2580008408.013101028111012.6314.632.259.0012.3811.251.38
2025Memphis RedbirdsIL2AAASLN5530102.79190001910319.1167618320031.247.450.473.7214.903.264.00
2025St. Louis CardinalsNLMLBSLN5530312.06420004215648.0331311222453071.156.190.384.138.442.442.05
Tot:MLB (4 yrs) MLB   323.55521002051658.1492523634594081.427.560.935.259.103.861.74
Tot:AL (1 yrs) AL   000.0010001101.01000110002.009.000.009.009.000.001.00
Tot:NL (3 yrs) NL   323.61511001950657.1482523633584081.417.530.945.189.103.921.76
Tot:Minors (8 yrs) Minors   28253.4919666224413019472.036120918335232545380361.266.880.674.4210.393.992.35
Tot:Rk (1 yrs) Rk   102.2011100001041.0281010117403041.106.150.223.738.782.202.35
Tot:A (1 yrs) A   412.0515500310048.1231411321665020.914.280.563.9112.292.613.14
Tot:A+ (2 yrs) A+   632.6816141102074.0562622336727011.246.810.364.388.763.162.00
Tot:AA (1 yrs) AA   563.9314111103068.2563330429728061.247.340.523.809.444.332.48
Tot:AAA (5 yrs) AAA   12154.1314026004111419240.019812611024129295150231.367.430.904.8411.064.732.29
Tot:College (3 yrs) College   352.9330900021489.079432933810311091.317.990.303.8410.424.352.71
Avg:MLB - 162 Inning avg MLB   ðŸ”’🔒🔒🔒🔒🔒🔒🔒🔒🔒162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
Avg:Minors - 162 Inning avg College   ðŸ”’🔒🔒🔒🔒🔒🔒🔒🔒🔒162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
Avg:College - 162 Inning avg College   ðŸ”’🔒🔒🔒🔒🔒🔒🔒🔒🔒162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
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Other Pitching Statistics

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yearteam nameleaguecategoryagewleraggscgshogrgfsviphrerhrbbsowpbkhbwhiph9hr9bb9so9ra9so/bb
2021Cincinnati RedsMLB Spring TrainingSpring26000.0030003002.10000150010.430.000.003.8619.290.005.00
2022Cincinnati RedsMLB Spring TrainingSpring27009.0031002114.06440141001.7513.500.002.259.009.004.00
2023Seattle MarinersMLB Spring TrainingSpring28003.2490009638.193304133011.569.720.004.3214.043.243.25
2024St. Louis CardinalsMLB Spring TrainingSpring29000.9010000102110.011210281001.309.900.001.807.201.804.00
2025St. Louis CardinalsMLB Spring TrainingSpring30000.0030003003.03000261001.679.000.006.0018.000.003.00
Tot:Spring (5 Yrs) Spring 002.6028100927527.22998010366021.419.430.003.2511.712.933.60

Batting Statistics

CSV
Glossary
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yearteam nameleaguelevelmlb#agepostbc+gabrh2b3bhrrbisbcsbbsohbpshsfibbgdptbpaxbh1bavgobpslgopssecaisobabipbb%so%so/bbab/hr
2018Bowling Green Hot RodsMidwATBA-23P110000000001000000100.000.000.000.000.000.000.0000.00100.000.000.00
2021Louisville BatsIL2AAACIN2126P1524141002002101100052813.167.259.208.467.125.041.2867.1435.715.000.00
Tot:Minors (2 yrs) Minors     1625141002002111100052913.160.250.200.450.120.040.2866.9037.935.50
Tot:A (1 yrs) A     110000000001000000100.000.000.000.000.000.0000.00100.00
Tot:AAA (1 yrs) AAA     1524141002002101100052813.167.259.208.468.125.042.2867.1435.715.00
Avg:Minors - 162 game avg College     162🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒🔒
TBC+ Metric is based on wOBA with inclusion of stolen base value. TBC's version of wOBA excludes park factors and uses static coefficients across all levels and years for ease of implementation.
* indicates player had a low sample size of plate appearances.

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Other Batting Statistics

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Glossary
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yearteam nameleaguecategoryagegabrh2b3bhrrbisbcsbbsohbpshsfibbgdptbpaxbh1bavgobpslgopssecaisobabipbb%so%so/bbab/hr
2021Cincinnati RedsMLB Spring TrainingSpring26100000000000000000000.000.000.000.000.000.000.0000.000.000.000.00
Tot:Spring (1 Yrs) Spring 100000000000000000000

Talent Ratings

About Talent Ratings
StrikeoutsWalksHittableSO/BBvs PowerDurabilityTeam Success
703468476850.533