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Riley O'Brien
Projections & Stats

STL

Player Information

TeamSTL PosRP Age30
ThrowsR $/Game-2.1 RCL R%0

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Razzball 2025 rest of season projections for Riley O'Brien of the St Louis Cardinals have him as the #545 ranked player and #124 relief pitcher (RP) worth $-12.1 in standard 12 team 5x5 mixed leagues for fantasy baseball.

Jump to: Season Stats || Monthly Stats || Game Log || Player Rater || 2024 Fantasy Outlook
Grey Albright's 2025 Player Summary

Riley O'Brien Stats

GGSQSWLSVHLDIPTBFHERHRBBKERAFIPWHIPBABIPH/9K/9BB/9HR/9K%BB%$
Last 7 Days20000013.716300260.001.391.350.3757.314.64.90.037.512.5-2.0
Last 30 Days1000000113.0559107180.692.111.230.3106.212.54.80.032.712.7-1.9
Season1700000222.392185210232.023.801.250.2917.39.34.00.825.010.9-13.3
ROS Proj2200110222.495199210233.503.701.320.3017.69.24.00.824.510.6-12.1

Riley O'Brien 2025 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)4600220746.2198412046223.953.991.369.04.20.823.210.9-6.7570
Prospectonator

Riley O'Brien Projections | Streamonator (Subscribe/login to see pitcher projections)

Riley O'Brien daily MLB projections and fantasy value for probable starts in next 7-10 days. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".

Riley O'Brien Projections | DFS (Subscribe to see DFS MLB projections)

Riley O'Brien daily fantasy baseball projections for DFS sites such as DraftKings and FanDuel. LU=Lineup. If the lineup has been released and incorporated into the projections, it is listed as "Live".

Riley O'Brien Trade Value | Try our free Fantasy Baseball Trade Analyzer to evaluate trade offers.

Riley O'Brien Game Log | Games Started

OPPDECIPBFPCHRERBBKERAFIPWHIPBABIPHRProj $Act $

Riley O'Brien Game Log | Last 30 Day Relief Appearances

OPPDECIPStartIPBFPCHRERBBKHRERAFIPWHIP$
Jul 13ATLHLD71.77271001200.002.481.2015.8
Jul 11ATL42.09382001400.000.581.5025.2
Jul 6@CHC52.09392000300.001.581.0024.5
Jul 2@PIT70.752021111012.860.004.48-76.7
Jun 29@CLE81.05260002300.003.092.00-3.5
Jun 26CHC61.04160001100.004.071.00-4.7
Jun 23CHC81.04191000000.003.071.00-12.2
Jun 20CIN90.73130001200.000.001.49-11.5
Jun 19@CHW61.03140000100.001.060.009.2
Jun 17@CHW72.06251000100.002.070.5017.5
Jun 13@MIL81.03170000100.001.080.009.2
Jun 11TOR62.08262001100.003.581.506.4
Jun 9TOR72.07223110014.509.571.50-16.4
Jun 5KC71.76251000100.001.880.6016.3
May 1@CIN61.783413312115.8812.071.20-42.7
Apr 28@CIN70.74122001000.000.004.48-63.3
Apr 26MILHLD70.3120000000.000.000.00-15.5

Riley O'Brien Stats | Season

Riley O'Brien stats and 5x5 fantasy value from 2013-2025.
PeriodTeamGGSQSWLSVHLDBFIPHERHRBBKERAFIPWHIPBABIPHR/9BB/9K/9$
2013 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2014 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2015 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2016 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2017 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2018 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2019 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2020 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2021CIN11001001.02223213.5026.423.7513.520.313.5-14.8
2022SEA100000051.0100110.004.112.000.3330.09.09.0-15.1
2023 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
2024STL8000000468.01310281111.257.042.630.4782.39.012.4-18.4
2025STL170000029222.0185210232.023.801.250.2910.84.09.3-13.3

Riley O'Brien Stats | Monthly

Riley O'Brien 2025 fantasy value by month for 5x5 leagues.
GGSQSWLSVHLDIPHERKBBERAFIPWHIPBABIPH/9K/9BB/9HR/9$$/G$
April20000011.020010.006.033.000.5009.90.09.00.0-13.6-15.8
May10000001.7132116.1712.011.200.0005.410.85.45.4-12.6-24.9
June1000000013.3811150.683.480.980.2195.47.43.40.7-1.8-3.5
July40000016.3711031.421.771.580.4389.914.24.30.0-9.3-8.5
August20000002.0333013.506.531.500.3339.913.50.04.5-15.1-19.6
September50000005.0866610.807.432.800.4129.910.89.91.8-27.6-30.8

Riley O'Brien Fantasy Baseball | Rest of Season Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-21.2-3.30.2-22.10.3-0.3-0.3123607
MLB 10 Y!-9.3-3.30.8-10.50.6-0.4-0.7127375
MLB 12 ESPN-12.1-3.80.2-13.00.3-0.3-0.3124545
MLB 12 Y!-8.0-3.60.7-8.80.4-0.6-0.7126406
MLB 14 ESPN-8.4-4.20.2-9.20.3-0.4-0.3126522
MLB 14 Y!-6.3-3.90.6-7.20.4-0.5-0.6124435
MLB 15 ESPN-7.4-4.40.2-8.00.3-0.5-0.4119532
MLB 15 Y!-6.2-4.10.5-7.00.3-0.6-0.6124458
MLB 16 ESPN-6.9-4.50.2-7.50.3-0.5-0.4124544
MLB 16 Y!-5.9-4.20.5-6.70.3-0.5-0.6124469
AL 10
NL 10-8.0-3.30.0-8.80.0-0.1-0.166374
AL 12
NL 12-6.2-3.60.0-7.10.00.0-0.161383

Riley O'Brien Fantasy Baseball | Rest of Season Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 12-7.4-3.80.3-8.30.4-0.4-0.40.00.0122232
6x6 (QS) Y! 12-5.3-3.70.4-6.30.4-0.4-0.5-0.30.0124224
6x6 (Holds) ESPN 12-39.1-4.30.3-23.50.6-0.7-0.80.0-16.0213528
6x6 (Holds) Y! 12-8.3-5.40.2-6.30.1-0.2-0.40.0-2.7177304
7x7 ESPN 12-21.0-4.30.2-26.00.3-0.3-0.40.04.2106266
7x7 Y! 12-8.0-5.80.2-6.10.1-0.1-0.30.0-2.8182294

Riley O'Brien Fantasy Baseball | Preseason Player Rater

$Point Shares$W$$SV$$ERA$$WHIP$$K$Pos RkTot Rk
MLB 10 ESPN-9.5-4.4-0.2-9.00.1-0.5-0.9243548
MLB 10 Y!-3.4-2.3-0.2-2.60.1-0.5-1.2235441
MLB 12 ESPN-6.7-4.50.0-6.80.2-0.4-0.7235570
MLB 12 Y!-4.5-2.8-0.3-2.90.0-0.8-1.5238484
MLB 14 ESPN-4.9-4.70.0-5.20.2-0.2-0.7236593
MLB 14 Y!-5.3-3.3-0.5-2.90.0-1.0-1.9246537
MLB 15 ESPN-4.6-4.70.0-4.70.2-0.3-0.8239616
MLB 15 Y!-5.7-3.6-0.5-2.8-0.1-1.1-2.2243570
MLB 16 ESPN-4.4-4.80.1-4.70.2-0.2-0.8231646
MLB 16 Y!-6.3-3.8-0.6-3.1-0.1-1.2-2.3242614
AL 10
NL 10-4.2-4.20.0-4.70.0-0.1-0.4121389
AL 12
NL 12-3.4-4.40.0-4.00.0-0.1-0.3117410

Riley O'Brien Fantasy Baseball | Preseason Player Rater (non-standard 5x5)

$Point Shares$W$$SV$$ERA$$WHIP$$K$$QS$$HLD$Pos RkTot Rk
6x6 (QS) ESPN 12-4.6-4.50.0-4.60.2-0.4-0.80.0232324
6x6 (Holds) ESPN 12-4.6-4.50.0-4.60.2-0.4-0.80.075324
7x7 ESPN 12-34.1-7.2-1.3-12.1-0.1-2.1-3.60.0-15.9268492

Riley O'Brien 2025 Projections | Preseason

GGSQSWLSVHLDIPTBFHERKBBERAFIPWHIPK/9BB/9HR/9K%BB%$All Rank
Preseason (Grey)
Preseason (Steamer)4600220746.2198412046223.953.991.369.04.20.823.210.9-6.7570
Prospectonator

Riley O'Brien Fantasy Outlook For 2024

Grey Albright Player Summary

Player data for Riley O'Brien maintained by | Updated: