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    Kansas City Royals
    Ronald Bolanos

    RonaldBolanos

    Kansas City Royals
    • Kansas City Royals
    • #57
    • Relief Pitcher
    • HT/WT
      1.91 m, 99 kg
    • Birthdate
      23/8/1996 (29)
    • 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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    14Winner Icon Kansas City Royals

    SV

    • 0

    K

    • 12

    ERA

    • 4.42

    WHIP

    • 1.75

    Career Pitching

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    Stats
    Career
    GPGSCGSHOIPHRERHRBBK
    1850048.049302872943

    Recent Games

    See All
    DateOPPResultGSCGSHOIPHRERHRBBK
    Sat 6/4vsHOUHOU
    L
    10-3
    0000.1333021
    Mon 5/30@MINMIN
    L
    7-3
    0002.0211000
    Fri 5/20vsCHWCHW
    L
    7-4
    0003.0311002
    Sun 5/15@COLCOL
    L
    10-4
    0004.0211124
    Tue 5/10@BALBAL
    L
    6-1
    0002.0200011
    Latest News
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    Racing Positions

      • 2026 MLB ABS challenge system tracker: Team, player rankings
        • 5h
        • ESPN
        ABS
        • Braves acquire Bart from Pirates for Stratton
          • 5h
          Braves acquire Bart from Pirates for Stratton
          • MLB home run leaders for each MLB team
            • 5h
            • James Howat, Sean Coyle
            MLB owners realign NL and AL into three divisions and added two wild-card teams into playoffs
            • Skubal: Tigers must rise before deadline 'or else'
              • 5h
              Skubal: Tigers must rise before deadline 'or else'
              • Royals' Witt (knee) exits after making sliding play
                • 5h
                Royals' Witt (knee) exits after making sliding play
                • Buxton addresses trade speculation: 'I'm a Twin'
                  • 8h
                  Buxton addresses trade speculation: 'I'm a Twin'
                  • Yankees' Chisholm exits after foul ball to groin
                    • 7h
                    • Jorge Castillo
                    Yankees' Chisholm exits after foul ball to groin
                    • Angels' Trout suffers hamstring injury, put on IL
                      • 8h
                      Angels' Trout suffers hamstring injury, put on IL
                      • ALPB team forfeits Pride Night game over jerseys
                        • 8h
                        ALPB team forfeits Pride Night game over jerseys
                        • Pereira on injured list after crashing into fence
                          • 10h
                          Pereira on injured list after crashing into fence

                        MLB News

                        Gage Jump spins gem and A's score 5 in 1st to beat Angels 5-0 after Trout lands on injured list

                        Gage Jump spins gem and A's score 5 in 1st to beat Angels 5-0 after Trout lands on injured list

                        — Gage Jump gave up one hit over seven sparkling innings, and Shea Langeliers and Tyler Soderstrom hit back-to-back homers in a five-run first that sent the Athletics to a 5-0 victory over the Los Angeles Angels on Thursday night.
                        2026 MLB ABS challenge system tracker: Team, player rankings

                        2026 MLB ABS challenge system tracker: Team, player rankings

                        The ABS challenge system leaderboard ranks batters, catchers, teams and umpires throughout the MLB season.
                        Braves acquire Joey Bart from Pirates for Hunter Stratton

                        Braves acquire Joey Bart from Pirates for Hunter Stratton

                        The Braves acquired catcher Joey Bart from the Pirates for right-handed pitcher Hunter Stratton on Thursday night.
                        MLB home run leaders for each MLB team

                        MLB home run leaders for each MLB team

                        Check out each team's all-time home run leaders.
                        Los Angeles Angels vs. Athletics: Game Highlights

                        Los Angeles Angels vs. Athletics: Game Highlights

                        Los Angeles Angels vs. Athletics: Game Highlights
                        Bobby Witt Jr. homers before leaving with knee injury in Royals' 14-6 win over Cardinals

                        Bobby Witt Jr. homers before leaving with knee injury in Royals' 14-6 win over Cardinals

                        — Bobby Witt Jr. hit the first of Kansas City's three home runs before leaving with a sore right knee, and the Royals smacked a club-record five...
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