Riley O'Brien or Ronan Kopp
Baseball Stats Comparison
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| Riley O'Brien RP - STL  | Ronan Kopp SP,RP - LAD  | |
| 2026 Stats | ||
| Games Played | 25 | ‐ |
| Games Started | 0 | ‐ |
| Innings Pitched | 25.1 | ‐ |
| Wins | 3 | ‐ |
| Losses | 2 | ‐ |
| Saves | 14 | ‐ |
| Blown Saves | 4 | ‐ |
| Holds | 1 | ‐ |
| Hits Allowed | 21 | ‐ |
| Earned Runs | 9 | ‐ |
| Home Runs Allowed | 1 | ‐ |
| Strikeouts | 27 | ‐ |
| Walks | 4 | ‐ |
| ERA | 3.20 | ‐ |
| WHIP | 0.99 | ‐ |
| Riley O'Brien RP - STL | Ronan Kopp SP,RP - LAD | |
| 2026 Projections | ||
| Games Played | 59 | 15 |
| Games Started | 0 | 0 |
| Innings Pitched | 60.2 | 15.6 |
| Wins | 3 | 1 |
| Losses | 3 | 1 |
| Saves | 14 | 0 |
| Blown Saves | 1 | 0 |
| Holds | 11 | 1 |
| Hits Allowed | 52 | 13 |
| Earned Runs | 26 | 7 |
| Home Runs Allowed | 5 | 2 |
| Strikeouts | 63 | 17 |
| Walks | 27 | 10 |
| ERA | 3.92 | 4.30 |
| WHIP | 1.31 | 1.47 |
| Riley O'Brien RP - STL | Ronan Kopp SP,RP - LAD | |
| News | ||
| Riley O'Brien allowed one earned run on one hit over one inning to earn the save in Friday's 6-5 win over the Cubs. Chase Davis Sat, May 30th | Ronan Kopp has been optioned to Triple-A Oklahoma City by the Los Angeles Dodgers. David Leisering Sun, Mar 8th | |
| Riley O'Brien tossed 1.1 innings, allowing only the Manfred man to score, with two strikeouts and one walk in Saturday's 7-6 loss to the Reds. Chase Davis Sun, May 24th | ||
| Riley O'Brien struck out two batters in a scoreless outing to earn the save in Thursday's 5-4 win over the Athletics. Chase Davis Fri, May 15th | ||
| Riley O'Brien earned the save in Tuesday's 6-4 win over the Athletics, working a scoreless frame while allowing one walk on 13 pitches. Jesse Garcia Wed, May 13th | ||
| Riley O'Brien struck out one batter in a scoreless appearance to earn the save in Thursday's 2-1 win over the Padres. Chase Davis Fri, May 8th | ||
| Notes | ||
| There are no recent notes for these players | ||
| Riley O'Brien RP - STL | Ronan Kopp SP,RP - LAD | |||||
| Date | Opp | Opp Pitcher | VBR | Opp | Opp Pitcher | VBR |
|---|---|---|---|---|---|---|
| Thu, Mar 26th | vs TB | Drew Rasmussen (4-2) | #21 | vs ARI | Zac Gallen (3-4) | #71 |
| Sat, Mar 28th | vs TB | Joe Boyle (0-1) | #167 | vs ARI | Eduardo Rodriguez (5-1) | #112 |
| Sun, Mar 29th | vs TB | Steven Matz (4-2) | #98 | |||
| Mon, Mar 30th | vs NYM | Clay Holmes (4-4) | #165 | vs CLE | Parker Messick (6-1) | #51 |
| Tue, Mar 31st | vs NYM | Kodai Senga (0-4) | #129 | vs CLE | Tanner Bibee (0-7) | #38 |
| Wed, Apr 1st | vs NYM | Freddy Peralta (3-4) | #28 | vs CLE | Gavin Williams (8-3) | #27 |
| Fri, Apr 3rd | @ DET | Framber Valdez (2-4) | #26 | @ WSH | Miles Mikolas (1-4) | #215 |
| Sat, Apr 4th | @ DET | Jack Flaherty (0-7) | #62 | @ WSH | Jake Irvin (2-4) | #203 |
| Sun, Apr 5th | @ DET | Keider Montero (2-3) | #201 | @ WSH | Foster Griffin (6-2) | #88 |
| Mon, Apr 6th | @ WSH | Zack Littell (5-4) | #169 | @ TOR | Max Scherzer (1-3) | #149 |
| Tue, Apr 7th | @ WSH | Cade Cavalli (3-3) | #87 | @ TOR | Kevin Gausman (4-3) | #19 |
| Wed, Apr 8th | @ WSH | Miles Mikolas (1-4) | #215 | @ TOR | Dylan Cease (3-3) | #16 |
| Fri, Apr 10th | vs BOS | Connelly Early (5-2) | #97 | vs TEX | Kumar Rocker (2-5) | #103 |
| Sat, Apr 11th | vs BOS | Ranger Suarez (2-3) | #32 | vs TEX | Jack Leiter (3-4) | #76 |
| Sun, Apr 12th | vs BOS | Brayan Bello (2-5) | #144 | vs TEX | Jacob deGrom (3-4) | #8 |
| Mon, Apr 13th | vs CLE | Gavin Williams (8-3) | #27 | vs NYM | David Peterson (3-5) | #117 |
| Tue, Apr 14th | vs CLE | Joey Cantillo (4-2) | #106 | vs NYM | Nolan McLean (3-4) | #29 |
| Wed, Apr 15th | vs CLE | Slade Cecconi (3-5) | #105 | vs NYM | Clay Holmes (4-4) | #165 |
| Fri, Apr 17th | @ HOU | Peter Lambert (4-4) | #190 | @ COL | Tomoyuki Sugano (4-4) | #428 |
| Sat, Apr 18th | @ HOU | Lance McCullers Jr. (2-3) | #208 | @ COL | Ryan Feltner (2-1) | #424 |
| Sun, Apr 19th | @ HOU | Mike Burrows (3-6) | #121 | @ COL | Michael Lorenzen (2-7) | #427 |
| Mon, Apr 20th | @ MIA | Max Meyer (5-0) | #68 | @ COL | Jose Quintana (2-3) | #425 |
| Tue, Apr 21st | @ MIA | Chris Paddack (0-7) | #324 | @ SF | Landen Roupp (5-5) | #61 |
| Wed, Apr 22nd | @ MIA | Janson Junk (3-5) | #116 | @ SF | Tyler Mahle (1-7) | #119 |
| Fri, Apr 24th | vs SEA | George Kirby (5-4) | #14 | vs CHC | Jameson Taillon (2-4) | #107 |
| Sat, Apr 25th | vs SEA | Bryan Woo (5-3) | #6 | vs CHC | Colin Rea (5-3) | #140 |
| Sun, Apr 26th | vs SEA | Emerson Hancock (4-2) | #91 | vs CHC | Shota Imanaga (4-6) | #24 |
| Mon, Apr 27th | @ PIT | Mason Montgomery (1-1) | #151 | vs MIA | Chris Paddack (0-7) | #324 |
| Tue, Apr 28th | @ PIT | Braxton Ashcraft (5-2) | #47 | vs MIA | Janson Junk (3-5) | #116 |
| Wed, Apr 29th | @ PIT | Bubba Chandler (1-6) | #122 | vs MIA | Sandy Alcantara (3-4) | #73 |
| Thu, Apr 30th | @ PIT | Paul Skenes (6-5) | #2 | |||
| Fri, May 1st | vs LAD | Emmet Sheehan (3-1) | #42 | @ STL | Matthew Liberatore (3-3) | #114 |
| Sat, May 2nd | vs LAD | Roki Sasaki (3-3) | #131 | @ STL | Michael McGreevy (3-4) | #86 |
| Sun, May 3rd | vs LAD | Justin Wrobleski (7-2) | #130 | @ STL | Dustin May (3-6) | #85 |
| Mon, May 4th | vs MIL | Chad Patrick (2-2) | #148 | @ HOU | Steven Okert | |
| Wed, May 6th | vs MIL | Brandon Sproat (1-4) | #158 | @ HOU | Lance McCullers Jr. (2-3) | #208 |
| Thu, May 7th | @ SD | Michael King (4-4) | #35 | |||
| Fri, May 8th | @ SD | Griffin Canning (0-4) | #141 | vs ATL | Chris Sale (8-3) | #5 |
| Sat, May 9th | @ SD | Randy Vasquez (5-3) | #199 | vs ATL | Spencer Strider (3-1) | #31 |
| Sun, May 10th | @ SD | Walker Buehler (3-3) | #220 | vs ATL | Bryce Elder (4-3) | #113 |
| Tue, May 12th | @ ATH | Jeffrey Springs (3-6) | #111 | vs SF | Adrian Houser (2-5) | #189 |
| Wed, May 13th | @ ATH | J.T. Ginn (3-3) | #127 | vs SF | Robbie Ray (3-6) | #83 |
| Thu, May 14th | @ ATH | Jacob Lopez (4-3) | #202 | vs SF | Landen Roupp (5-5) | #61 |
| Fri, May 15th | vs KC | Michael Wacha (4-3) | #78 | @ LAA | Jack Kochanowicz (2-4) | #420 |
| Sat, May 16th | vs KC | Noah Cameron (2-4) | #92 | @ LAA | Jose Soriano (6-4) | #45 |
| Sun, May 17th | vs KC | Stephen Kolek (3-1) | #166 | @ LAA | Grayson Rodriguez (2-1) | #77 |
| Tue, May 19th | vs PIT | Mitch Keller (5-2) | #95 | @ SD | Griffin Canning (0-4) | #141 |
| Wed, May 20th | vs PIT | Carmen Mlodzinski (4-3) | #132 | @ SD | Randy Vasquez (5-3) | #199 |
| Thu, May 21st | vs PIT | Braxton Ashcraft (5-2) | #47 | |||
| Sat, May 23rd | @ CIN | Chase Petty (0-0) | #416 | @ MIL | Robert Gasser (0-1) | #191 |
| Mon, May 25th | @ MIL | Jacob Misiorowski (6-2) | #18 | vs COL | Tanner Gordon (0-1) | #325 |
| Tue, May 26th | @ MIL | Kyle Harrison (6-1) | #63 | vs COL | Kyle Freeland (1-6) | #395 |
| Wed, May 27th | @ MIL | Chad Patrick (2-2) | #148 | vs COL | Tomoyuki Sugano (4-4) | #428 |
| Fri, May 29th | vs CHC | Shota Imanaga (4-6) | #24 | vs PHI | Zack Wheeler (4-1) | #7 |
| Sat, May 30th | vs CHC | Ben Brown (2-2) | #52 | vs PHI | Jesus Luzardo (4-4) | #10 |
| Sun, May 31st | vs CHC | Jordan Wicks (0-2) | #234 | vs PHI | Andrew Painter (1-6) | #170 |
| Mon, Jun 1st | vs TEX | Jacob deGrom (3-4) | #8 | @ ARI | Eduardo Rodriguez (5-1) | #112 |
| Tue, Jun 2nd | vs TEX | Nathan Eovaldi (5-6) | #20 | @ ARI | Michael Soroka (7-2) | #67 |
| Wed, Jun 3rd | vs TEX | MacKenzie Gore (4-4) | #50 | @ ARI | Zac Gallen (3-4) | #71 |
| Fri, Jun 5th | vs CIN | Brady Singer (2-5) | #143 | vs LAA | Reid Detmers (2-5) | #41 |
| Sat, Jun 6th | vs CIN | Nick Lodolo (2-1) | #58 | vs LAA | Jack Kochanowicz (2-4) | #420 |
| Sun, Jun 7th | vs CIN | Chase Burns (7-1) | #25 | vs LAA | Jose Soriano (6-4) | #45 |
| Tue, Jun 9th | @ NYM | Kodai Senga (0-4) | #129 | @ PIT | Paul Skenes (6-5) | #2 |
| Wed, Jun 10th | @ NYM | Freddy Peralta (3-4) | #28 | @ PIT | Jared Jones (0-0) | #69 |
| Thu, Jun 11th | @ NYM | @ PIT | ||||
| Fri, Jun 12th | @ MIN | @ CWS | ||||
| Sat, Jun 13th | @ MIN | @ CWS | ||||
| Sun, Jun 14th | @ MIN | @ CWS | ||||
| Mon, Jun 15th | vs SD | vs TB | ||||
| Tue, Jun 16th | vs SD | vs TB | ||||
| Wed, Jun 17th | vs SD | vs TB | ||||
| Thu, Jun 18th | @ KC | |||||
| Fri, Jun 19th | @ KC | vs BAL | ||||
| Sun, Jun 21st | @ KC | vs BAL | ||||
| Mon, Jun 22nd | vs ARI | @ MIN | ||||
| Tue, Jun 23rd | vs ARI | @ MIN | ||||
| Wed, Jun 24th | vs ARI | @ MIN | ||||
| Thu, Jun 25th | vs ARI | |||||
| Fri, Jun 26th | vs MIA | @ SD | ||||
| Sat, Jun 27th | vs MIA | @ SD | ||||
| Sun, Jun 28th | vs MIA | @ SD | ||||
| Tue, Jun 30th | @ ATL | @ ATH | ||||
| Wed, Jul 1st | @ ATL | @ ATH | ||||
| Thu, Jul 2nd | @ ATL | vs SD | ||||
| Fri, Jul 3rd | @ CHC | vs SD | ||||
| Sat, Jul 4th | @ CHC | vs SD | ||||
| Sun, Jul 5th | @ CHC | vs SD | ||||
| Mon, Jul 6th | vs MIL | vs COL | ||||
| Tue, Jul 7th | vs MIL | vs COL | ||||
| Wed, Jul 8th | vs MIL | vs COL | ||||
| Thu, Jul 9th | vs MIL | |||||
| Fri, Jul 10th | vs ATL | vs ARI | ||||
| Sat, Jul 11th | vs ATL | vs ARI | ||||
| Sun, Jul 12th | vs ATL | vs ARI | ||||
| Fri, Jul 17th | @ ARI | @ NYY | ||||
| Sat, Jul 18th | @ ARI | @ NYY | ||||
| Sun, Jul 19th | @ ARI | @ NYY | ||||
| Mon, Jul 20th | @ LAA | @ PHI | ||||
| Tue, Jul 21st | @ LAA | @ PHI | ||||
| Wed, Jul 22nd | @ LAA | @ PHI | ||||
| Fri, Jul 24th | vs CIN | @ NYM | ||||
| Sat, Jul 25th | vs CIN | @ NYM | ||||
| Sun, Jul 26th | vs CIN | @ NYM | ||||
| Mon, Jul 27th | vs CHC | |||||
| Tue, Jul 28th | vs CHC | vs SEA | ||||
| Wed, Jul 29th | vs CHC | vs SEA | ||||
| Thu, Jul 30th | vs CHC | vs SEA | ||||
| Fri, Jul 31st | @ TOR | vs BOS | ||||
| Sat, Aug 1st | @ TOR | vs BOS | ||||
| Sun, Aug 2nd | @ TOR | vs BOS | ||||
| Mon, Aug 3rd | @ NYY | @ CHC | ||||
| Tue, Aug 4th | @ NYY | @ CHC | ||||
| Wed, Aug 5th | @ NYY | @ CHC | ||||
| Fri, Aug 7th | vs COL | @ ARI | ||||
| Sat, Aug 8th | vs COL | @ ARI | ||||
| Sun, Aug 9th | vs COL | @ ARI | ||||
| Mon, Aug 10th | vs PHI | vs KC | ||||
| Tue, Aug 11th | vs PHI | vs KC | ||||
| Wed, Aug 12th | vs PHI | vs KC | ||||
| Fri, Aug 14th | @ CHC | vs MIL | ||||
| Sat, Aug 15th | @ CHC | vs MIL | ||||
| Sun, Aug 16th | @ CHC | vs MIL | ||||
| Mon, Aug 17th | @ CIN | @ COL | ||||
| Tue, Aug 18th | @ CIN | @ COL | ||||
| Wed, Aug 19th | @ CIN | @ COL | ||||
| Thu, Aug 20th | @ CIN | |||||
| Fri, Aug 21st | @ PHI | vs PIT | ||||
| Sat, Aug 22nd | @ PHI | vs PIT | ||||
| Sun, Aug 23rd | @ PHI | vs PIT | ||||
| Tue, Aug 25th | vs BAL | @ ATL | ||||
| Wed, Aug 26th | vs BAL | @ ATL | ||||
| Thu, Aug 27th | vs BAL | @ ATL | ||||
| Fri, Aug 28th | vs PIT | @ DET | ||||
| Sat, Aug 29th | vs PIT | @ DET | ||||
| Sun, Aug 30th | vs PIT | @ DET | ||||
| Tue, Sep 1st | @ LAD | vs STL | ||||
| Wed, Sep 2nd | @ LAD | vs STL | ||||
| Thu, Sep 3rd | @ LAD | vs STL | ||||
| Fri, Sep 4th | @ COL | vs WSH | ||||
| Sat, Sep 5th | @ COL | vs WSH | ||||
| Sun, Sep 6th | @ COL | vs WSH | ||||
| Mon, Sep 7th | @ SF | vs CIN | ||||
| Tue, Sep 8th | @ SF | vs CIN | ||||
| Wed, Sep 9th | @ SF | vs CIN | ||||
| Fri, Sep 11th | vs CWS | @ MIA | ||||
| Sat, Sep 12th | vs CWS | @ MIA | ||||
| Sun, Sep 13th | vs CWS | @ MIA | ||||
| Mon, Sep 14th | vs SF | @ CIN | ||||
| Tue, Sep 15th | vs SF | @ CIN | ||||
| Wed, Sep 16th | vs SF | @ CIN | ||||
| Fri, Sep 18th | vs WSH | vs SF | ||||
| Sat, Sep 19th | vs WSH | vs SF | ||||
| Sun, Sep 20th | vs WSH | vs SF | ||||
| Tue, Sep 22nd | @ PIT | vs SD | ||||
| Wed, Sep 23rd | @ PIT | vs SD | ||||
| Thu, Sep 24th | @ PIT | vs SD | ||||
| Fri, Sep 25th | @ MIL | @ SF | ||||
| Sat, Sep 26th | @ MIL | @ SF | ||||
| Sun, Sep 27th | @ MIL | @ SF | ||||
| Fri, Mar 27th | vs ARI | Ryne Nelson (2-4) | #89 | |||
| Thu, Apr 23rd | @ SF | Logan Webb (2-4) | #12 | |||
| Tue, May 5th | @ HOU | Peter Lambert (4-4) | #190 | |||
| Mon, May 11th | vs SF | Trevor McDonald (2-2) | #161 | |||
| Mon, May 18th | @ SD | Michael King (4-4) | #35 | |||
| Fri, May 22nd | @ MIL | Logan Henderson (2-1) | #57 | |||
| Sun, May 24th | @ MIL | Brandon Sproat (1-4) | #158 | |||
| Thu, Jun 4th | @ ARI | Ryne Nelson (2-4) | #89 | |||
| Sat, Jun 20th | vs BAL | |||||
| Mon, Jun 29th | @ ATH | |||||
| Thu, Aug 13th | vs MIL | |||||
| Thu, Sep 17th | @ CIN | |||||
