Leagues

    USBC has data for Mark C Gyotoku starting from 2002.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2026: 212 over 81 games (House)
    2025: 218 over 81 games (House)
    2024: 210 over 84 games (House)
    2023: 216 over 72 games (House)
    2022: 199 over 81 games (House)

    League Averages

    2025-2026

  • Nisei Invitational 2025-26 (W) - 212 over 81 games

    2024-2025

  • Nisei Invitational 2024-25 (W) - 218 over 81 games

    2023-2024

  • Nisei Invitational 2023- 24 (W) - 210 over 84 games

    2022-2023

  • Nisei Invitational 2022-2023 (W) - 216 over 72 games

    2021-2022

  • Nisei Invitational 2021-2022 (W) - 199 over 81 games

    2019-2020

  • Nisei Invitational 2019-202 (W) - 213 over 63 games

    2018-2019

  • Reno Fun League 2019 (S) - data not found
    Nisei Invitational 2018-2019 (W) - 212 over 75 games

    2017-2018

  • Nisei Invitational 2017-2018 (W) - 212 over 87 games
    Reno Fun League 2018 (S) - 211 over 42 games

    2016-2017

  • Reno Fun League 2017 (S) - 213 over 39 games
    Nisei Invitational (W) - 204 over 84 games

    2015-2016

  • Reno Fun (S) - 215 over 38 games
    Nisei Invitational (W) - 205 over 87 games

    2014-2015

  • Reno Fun (S) - 209 over 30 games
    Nisei Invitational (W) - 205 over 84 games

    2013-2014

  • Reno Fun Summer (S) - 204 over 21 games
    Nisei Invitational (W) - 197 over 90 games

    2012-2013

  • Nisei Invitational (W) - 214 over 87 games

    2011-2012

  • Nisei Invitational (W) - 216 over 90 games

    2010-2011

  • Nikkei Invitational Mixed Trios (W) - data not found
    Nisei Invitational (W) - 208 over 84 games

    2009-2010

  • Nisei Invitational (W) - 212 over 87 games

    2008-2009

  • Nisei Invitational (W) - 206 over 87 games
    825 Scratch (S) - 201 over 15 games

    2007-2008

  • 830 Scratch (S) - data not found
    Nisei Invitational (W) - 210 over 75 games
    Nikkei Invitational Trios (S) - 199 over 27 games

    2006-2007

  • Nisei Invitational (W) - 213 over 90 games

    2005-2006

  • Nisei Invitational (W) - 212 over 90 games

    2004-2005

  • Nisei Invitational (W) - 206 over 690 games
    Nikkei Mixed Trios Summer (S) - 204 over 33 games

    2003-2004

  • Nisei Invitational (W) - 213 over 90 games

    2002-2003

  • Nisei Invitational (W) - 205 over 87 games

    2001-2002

  • Nisei Invitational (W) - 206 over 90 games


Memberships

    Mark C Gyotoku has an active USBC membership.

    Current:

    San Francisco USBC - 2025-08-01 - 2026-07-31

    Past:

    San Francisco USBC - 2024-08-01 - 2025-07-31
    San Francisco USBC - 2023-08-01 - 2024-07-31
    San Francisco USBC - 2022-08-01 - 2023-07-31
    San Francisco USBC - 2021-08-01 - 2022-07-31
    San Francisco USBC - 2019-08-01 - 2020-07-31
    San Francisco USBC - 2018-08-01 - 2019-07-31
    San Francisco USBC - 2017-08-01 - 2018-07-31
    San Francisco USBC - 2016-08-01 - 2017-07-31
    San Francisco USBC - 2015-08-01 - 2016-07-31
    San Francisco USBC - 2014-08-01 - 2015-07-31
    San Francisco USBC - 2013-08-01 - 2014-07-31
    San Francisco USBC - 2012-08-01 - 2013-07-31
    San Francisco USBC - 2011-08-01 - 2012-07-31
    San Francisco USBC - 2010-08-01 - 2011-07-31
    San Francisco USBC - 2009-08-01 - 2010-07-31
    San Francisco USBC - 2008-08-01 - 2009-07-31
    San Francisco USBC - 2007-08-01 - 2008-07-31
    San Francisco USBC - 2006-08-01 - 2007-07-31
    San Francisco BA - 2005-08-01 - 2006-07-31
    San Francisco BA - 2004-03-15 - 2005-07-31
    San Francisco BA - 2003-08-01 - 2004-07-31
    San Francisco BA - 2002-08-01 - 2003-07-31
    San Francisco BA - 2001-08-01 - 2002-07-31

Honors

800 series (1)

  • 814 on November 15 2007 at Serra Bowl - Games: 289-278-247


    • 300 games (1)

  • 300 (Game 3) on October 20 2016 at Classic Bowling Center - Games: 191-206-300


    • 11 in a row (1)

  • October 18 2012 at Classic Bowling Center


    • Open Championships

    Entering Average: 189

    Why?

    If a bowler does not have a 27 game Open Championship Average, use the Highest Sport Adjusted Average of the last three bowling seasons.
    You currently have bowled 0 games out of the required 27.

    The Math

    Highest league is from: 2024/25
    218 (standard) -> 189 (sport)

    Open Championships average is the most recent 27 games bowled at the Open Championships from 2016 through 2025. To search historical scores from the Open Championships Leaderboard click here.