Leagues

    USBC has data for David E Chew starting from 2000.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2025: 203 over 297 games (House)
    2024: 208 over 333 games (House)
    2023: 200 over 249 games (House)
    2022: 209 over 213 games (House)
    2021: 197 over 45 games (House)

    League Averages

    2024-2025

  • Summer Tuesday Shooters (S) - data not found
    Wednesday Practice (W) - data not found
    Wednesday Practice (S) - data not found
    Thursday Practice (S) - 211 over 12 games
    Thursday Practice (W) - 211 over 39 games
    Tuesday Shooters (W) - 206 over 87 games
    Wednesday Practice (Spring) (W) - 206 over 33 games
    Thursday Practice (W) - 205 over 36 games
    575 Scratch (W) - 193 over 90 games

    2023-2024

  • Thursday Practice (S) - data not found
    Summer Tuesday Shooters (S) - data not found
    Thursday Practice (W) - 221 over 33 games
    Tuesday Shooters (W) - 213 over 81 games
    Wednesday Practice (W) - 212 over 36 games
    Wednesday Practice (S) - 211 over 33 games
    Thursday Practice (W) - 206 over 33 games
    Wednesday Practice Spring (W) - 203 over 36 games
    575 Scratch (W) - 198 over 81 games

    2022-2023

  • Wednesday Practice (S) - data not found
    Loyalist S23 (S) - 211 over 3 games
    Thursday Practice (S) - 210 over 39 games
    Thursday Practice (W) - 202 over 33 games
    Wednesday Practice (W) - 199 over 36 games
    Thursday Practice (W) - 199 over 36 games
    575 Scratch (W) - 197 over 63 games
    Wednesday Practice (W) - 197 over 39 games

    2021-2022

  • Thursday Practice (W) - 215 over 36 games
    Thursday Practice (W) - 215 over 36 games
    Monday Practice (W) - 209 over 36 games
    Monday Practice (W) - 208 over 45 games
    Thursday Practice (S) - 207 over 33 games
    Sirs & Friends (S) - 199 over 27 games

    2020-2021

  • Thursday Penny Pinchers (S) - 199 over 21 games
    Tuesday Penny Pinchers (S) - 198 over 21 games
    Discovery Bay Mixers (S) - 176 over 3 games

    2019-2020

  • Thursday Penny Pinchers Spring (W) - 200 over 21 games
    Thursday Penny Pinchers Fall (W) - 193 over 36 games

    2018-2019

  • Thursday Penny Pinchers 2 (W) - 206 over 33 games
    Thursday Penny Pinchers 1 (W) - 203 over 9 games
    Summerset Seniors (W) - 200 over 63 games

    2017-2018

  • Discovery Bay Mixers (W) - 221 over 69 games
    Thursday Penny Pinchers 1 (W) - 219 over 36 games
    Summerset Seniors (W) - 218 over 69 games
    Summer Penny Pinchers Thursday (S) - 217 over 18 games
    Thursday Penny Pinchers 2 (W) - 212 over 30 games

    2016-2017

  • Thursday Penny Pinchers 2 (W) - 244 over 6 games
    Thursday Penny Pinchers 1 (W) - 216 over 12 games
    Daytime Practice (W) - 216 over 71 games
    Discovery Bay Mixers (W) - 210 over 90 games
    Summer Penny Pinchers Thursday (S) - 190 over 6 games

    2015-2016

  • Thursday Penny Pinchers 2 (W) - 217 over 18 games
    Discovery Bay Mixers (W) - 215 over 84 games
    Daytime Practice (W) - 212 over 78 games
    Thursday Penny Pinchers 1 (W) - 208 over 21 games
    Summer Penny Pinchers Thursday (S) - 194 over 12 games

    2014-2015

  • Summer Penny Pinchers Thursday (S) - 221 over 24 games
    Discovery Bay Mixers (W) - 209 over 75 games
    Daytime Practice (W) - 205 over 59 games
    Thursday Penny Pinchers 2 (W) - 203 over 33 games

    2013-2014

  • Discovery Bay Mixers 13/14 (W) - 214 over 68 games
    Daytime Practice (W) - 211 over 60 games
    D.V. Swap Summer 14 (S) - 205 over 9 games

    2012-2013

  • Daytime Practice (W) - 219 over 66 games
    Penny Pinchers (W) - 214 over 12 games
    Discovery Bay Mixers (W) - 211 over 57 games
    Penny Pinchers 2 (W) - 194 over 12 games

    2011-2012

  • Daytime Practice (W) - 225 over 48 games

    2010-2011

  • Daytime Practice (W) - 223 over 75 games

    2009-2010

  • Daytime Practice (W) - 216 over 57 games

    2008-2009

  • Daytime Practice (W) - 224 over 72 games

    2007-2008

  • Summer Monday Practice (S) - 217 over 27 games
    Thursday Daytime Practice (W) - 206 over 72 games

    2006-2007

  • Thursday Daytime Free Game (S) - 215 over 12 games
    Thursday Daytime Free Game Leauge (W) - 203 over 57 games

    2005-2006

  • Winter Daytime Thursday Free Game Leauge (W) - 211 over 81 games
    Thursday Daytime Free Game (S) - 205 over 36 games

    2004-2005

  • Thursday Winter Free Game Daytime (W) - 217 over 75 games
    Thursday Daytime Free Game (S) - 211 over 81 games

    2003-2004

  • Thursday Practice League (W) - 213 over 33 games

    2001-2002

  • Diablo Nisei Mystery Trios (W) - 227 over 12 games

    1999-2000

  • Diablo Nisei Mixed Trios (W) - data not found


Memberships

    David E Chew does not have an active USBC membership at this time.

    Most Recent:

    Contra Costa County USBC - 2024-08-01 - 2025-07-31

    Past:

    Contra Costa County USBC - 2023-08-01 - 2024-07-31
    Alameda County USBC - 2022-08-01 - 2023-07-31
    Contra Costa County USBC - 2022-08-01 - 2023-07-31
    San Diego USBC - 2022-08-01 - 2023-07-31
    Contra Costa County USBC - 2021-08-01 - 2022-07-31
    Contra Costa County USBC - 2020-08-01 - 2021-07-31
    Contra Costa County USBC - 2019-08-01 - 2020-07-31
    Contra Costa County USBC - 2018-08-01 - 2019-07-31
    Contra Costa County USBC - 2017-08-01 - 2018-07-31
    Contra Costa County USBC - 2016-08-01 - 2017-07-31
    Contra Costa County USBC - 2015-08-01 - 2016-07-31
    Contra Costa County USBC - 2014-08-01 - 2015-07-31
    Contra Costa County USBC - 2013-08-01 - 2014-07-31
    Contra Costa County USBC - 2012-08-01 - 2013-07-31
    Contra Costa County USBC - 2011-08-01 - 2012-07-31
    Contra Costa County USBC - 2010-08-01 - 2011-07-31
    Contra Costa County USBC - 2009-08-01 - 2010-07-31
    Contra Costa County USBC - 2008-08-01 - 2009-07-31
    Contra Costa County USBC - 2007-08-01 - 2008-07-31
    Contra Costa County USBC - 2006-08-01 - 2007-07-31
    Contra Costa County BA - 2005-08-01 - 2006-07-31
    Contra Costa County BA - 2004-03-15 - 2005-07-31
    Contra Costa County BA - 2003-03-15 - 2004-07-31
    Contra Costa County BA - 2003-03-15 - 2004-07-31
    Contra Costa County BA - 2001-08-01 - 2002-07-31
    Contra Costa County BA - 1999-08-01 - 2000-07-31

Honors

800 series (2)

  • 812 on September 20 2017 at Bowlero Brentwood - Games: 236-300-276
  • 811 on December 2 2010 at Delta Bowl - Games: 214-299-298


  • 300 games (6)

  • 300 (Game 2) on September 20 2017 at Bowlero Brentwood - Games: 236-300-276
  • 300 (Game 3) on July 23 2015 at Bowlero Brentwood - Games: 227-248-300
  • 300 (Game 3) on September 6 2012 at Delta Bowl - Games: 203-208-300
  • 300 (Game 2) on April 28 2012 at Delta Bowl - Games: 239-300-221
  • 300 (Game 3) on March 10 2011 at Delta Bowl - Games: 210-279-300
  • 300 (Game 1) on June 15 2006 at Delta Bowl - Games: 300-182-222


  • 11 in a row (4)

  • October 23 2013 at Bowlero Brentwood
  • January 23 2013 at Bowlero Brentwood
  • December 2 2010 at Delta Bowl
  • August 11 2008 at Delta Bowl


  • Open Championships

    Entering Average: 190 after 27 games



    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.

    IGBO TAD

    ( gms)



    Tournaments

    This average is from Feb 1, 2025 until Feb 1, 2026.