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    RonaldBolanos

    Kansas City Royals
    • Kansas City Royals
    • #57
    • Relief Pitcher
    • HT/WT
      6' 3", 220 lbs
    • Birthdate
      8/23/1996 (30)
    • BAT/THR
      Right/Right
    • Birthplace
      Havana, Cuba
    • Status
      Minors

    2022 season stats

    • SV
      0
      150+
      ERA
      4.42
      K
      12
      150+
      WHIP
      1.75
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    Cleveland Guardians logo
    Guardians
    85-77
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    Royals
    69-93
    3Winner Icon Kansas City Royals

    SV

    • 0

    K

    • 12

    ERA

    • 4.42

    WHIP

    • 1.75

    Career Pitching

    See All
    Stats
    Career
    GPGSCGSHOIPHRERHRBBK
    1850048.049302872943

    Recent Games

    See All
    DateOPPResultGSCGSHOIPHRERHRBBK
    Fri 6/3vsHOUHOU
    L
    10-3
    0000.1333021
    Sun 5/29@MINMIN
    L
    7-3
    0002.0211000
    Thu 5/19vsCHWCHW
    L
    7-4
    0003.0311002
    Sat 5/14@COLCOL
    L
    10-4
    0004.0211124
    Mon 5/9@BALBAL
    L
    6-1
    0002.0200011
    Latest News
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    Racing Positions

      • 'That's who we are': Rays won't ease up on basepaths despite Game 1 miscues
        • 5h
        • Jorge Castillo
        'That's who we are': Rays won't ease up on basepaths despite Game 1 miscues
        • Brewers escape ninth-inning jam, replay drama to take World Series opener
          • 5h
          • Jeff Passan
          Brewers escape ninth-inning jam, replay drama to take World Series opener
          • World Series Game 1: Takeaways from Brewers' win over Rays
            • 13h
            • ESPN
            World Series Game 1: Takeaways from Brewers' win over Rays
            • 2026 World Series schedule: Rays vs. Brewers dates and times
              • 14h
              • ESPN
              2026 World Series schedule: Rays vs. Brewers dates and times
              • Brewers' Misiorowski unleashes 103.5 mph pitch to set World Series record
                • 13h
                Jacob Misiorowski
                • Manfred: Small-market World Series good for game, but cap still needed
                  • 16h
                  • Jesse Rogers
                  Manfred: Small-market World Series good for game, but cap still needed
                  • Brewers' Woodruff, out since July, added to World Series roster
                    • 1d
                    • Bradford Doolittle
                    Brewers' Woodruff, out since July, added to World Series roster
                    • World Series odds: We're down to Brewers and Rays!
                      • 1d
                      • Doug Greenberg
                      Jackson Chourio #11 of the Milwaukee Brewers celebrates his game-winning two-run single against the San Diego Padres during the ninth inning.
                      • Fall Classic or Roofball Classic? A guide to an all-dome World Series
                        • 1d
                        • J.J. Post
                        Fall Classic or Roofball Classic? A guide to an all-dome World Series
                        • From Jordan to LeBron: Ranking Jay-Z's best sports references
                          • 1d
                          • David Dennis Jr., Justin Tinsley
                          Mike Tyson, LeBron James, Jay-z, Dwyane Wade, Shaquille O'Neal, Kobe Bryant & Michael Jordan

                        MLB News

                        Who is this year's Mr. October? Tracking the playoff MVP for 2026

                        Who is this year's Mr. October? Tracking the playoff MVP for 2026

                        We go inside the numbers on the players doing the most to help their teams win.
                        Buster Olney: Brewers' bullpen spectacular in Game 1

                        Buster Olney: Brewers' bullpen spectacular in Game 1

                        Buster Olney: Brewers' bullpen spectacular in Game 1
                        Brewers take 1-0 lead into World Series Game 2 against Rays

                        Brewers take 1-0 lead into World Series Game 2 against Rays

                        Tampa Bay Rays (98-64, first in the AL East during the regular season) vs. Milwaukee Brewers (103-59, first in the NL Central during the regular season)
                        Rays won't ease up on basepaths despite miscues in Game 1 of World Series

                        Rays won't ease up on basepaths despite miscues in Game 1 of World Series

                        The Rays say they will remain aggressive despite two costly baserunning miscues in Friday's loss to the Brewers in Game 1 of the World Series.
                        Brewers take exciting Game 1 for a lead in the World Series

                        Brewers take exciting Game 1 for a lead in the World Series

                        Brewers take exciting Game 1 for a lead in the World Series
                        Trevor Megill escapes ninth-inning jam to close out Brewers' Game 1 win

                        Trevor Megill escapes ninth-inning jam to close out Brewers' Game 1 win

                        The Brewers survived some late drama, including a seemingly game-ending double play that was overturned on review, to beat the Rays 3-2 in Game 1 of the World Series.
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