Leagues

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

    Recent Composite Averages

    2026: 149 over 99 games (House)
    2025: 156 over 132 games (House)
    2024: 156 over 144 games (House)
    2023: 161 over 132 games (House)
    2022: 165 over 84 games (House)

    League Averages

    2025-2026

  • Indian Casino Summer 2026 (S) - data not found
    Senior Lottery 2025-26 (W) - 149 over 99 games

    2024-2025

  • Senior Lottery 2024-25 (W) - 158 over 90 games
    Indian Casino Summer 2025 (S) - 152 over 42 games

    2023-2024

  • Senior Lottery 2023-2024 (W) - 158 over 96 games
    Indian Casino Summer 2024 (S) - 152 over 48 games

    2022-2023

  • Senior Lottery 2022-23 (W) - 162 over 87 games
    Indian Casino Summer 2023 (S) - 160 over 45 games

    2021-2022

  • Senior Lottery 2021-2022 (W) - 165 over 84 games

    2019-2020

  • Senior Lottery 2019-2020 (W) - 166 over 72 games

    2018-2019

  • Senior Lottery 2018-2019 (W) - 169 over 63 games

    2017-2018

  • Senior Lottery 2017-2018 (W) - 164 over 93 games

    2016-2017

  • Senior Lottery (W) - 166 over 90 games

    2015-2016

  • Senior Lottery (W) - 166 over 90 games

    2014-2015

  • Senior Lottery (W) - 166 over 90 games

    2013-2014

  • Senior Lottery (W) - 173 over 78 games
    Tuesday Nikkei Invitational Trios (W) - 171 over 78 games

    2012-2013

  • Nikkei Inv. Scratch Trios (W) - 173 over 81 games
    Nikkei Summer Mixed Dbls (S) - 172 over 33 games
    Senior Lottery (W) - 170 over 87 games

    2011-2012

  • Nikkei Invitational Mixed Trios (W) - 173 over 84 games
    Senior Lottery (W) - 173 over 90 games

    2010-2011

  • Nikkei Invitational Mixed Trios (W) - 177 over 84 games
    Nikkei Summer Trios 2011 (S) - 175 over 30 games
    Senior Lottery (W) - 172 over 87 games

    2009-2010

  • Nikkei Invitational Mixed Trios (W) - 172 over 72 games
    Senior Lottery (W) - 167 over 81 games
    Nikkei Summer Mixed Trios 2010 (S) - 163 over 27 games

    2008-2009

  • Nikkei Invitational Mixed Trios (W) - 170 over 87 games
    Nikkei Jr/Adult Invitational Trios (S) - 165 over 30 games
    Senior Lottery (W) - 164 over 84 games

    2007-2008

  • Serra Nikkei Invitational Trios (W) - 177 over 87 games
    Senior Lottery (W) - 176 over 87 games
    Nikkei Invitational Trios (S) - 171 over 30 games
    Senior Lottery (S) - 168 over 39 games

    2006-2007

  • Senior Lottery (S) - 198 over 39 games
    Senior Lottery (W) - 197 over 84 games
    Nikkei Invitational Mixed Trio's (S) - 195 over 30 games
    Serra Nikkei Invitational Trios (W) - 186 over 84 games

    2005-2006

  • Nikkei Summer Mixed Trios (S) - data not found
    Serra Nikkei Invitational (W) - 183 over 84 games
    Senior Lottery (W) - 182 over 84 games

    2003-2004

  • Serra Nikkei Invitational (W) - 177 over 87 games
    Nikkei Summer Trios (S) - 177 over 33 games
    Senior Lottery (W) - 176 over 90 games
    Nikkei Mixed Invitational (W) - 165 over 78 games

    2002-2003

  • Serra Nikkei Invitational (W) - 187 over 84 games
    Nikkei Mixed Inv. (W) - 176 over 75 games

    2001-2002

  • Nikkei Mixed Inv. (W) - 187 over 87 games
    Nikkei Mixed Inv. (W) - 177 over 84 games


Memberships

    Ken Shimosaka 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 - 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

Open Championships

Entering Average: 143

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: 2022/23
162 (standard) -> 143 (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.