Leagues

    USBC has data for Gregory J Colburn starting from 2004.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2018: 187 over 56 games (Sport)
    2018: 183 over 16 games (House)
    2017: 187 over 132 games (Sport)
    2016: 210 over 92 games (House)
    2016: 196 over 132 games (Sport)

    League Averages

    2025-2026

  • CLASSIC DRAFT (W) - data not found

    2017-2018

  • CLASSIC DRAFT (W) - 187 over 56 games
    Sierra Challenge (S) - 183 over 16 games

    2016-2017

  • CLASSIC DRAFT (W) - 187 over 132 games

    2015-2016

  • Sierra Challenge (S) - 214 over 56 games
    COLLEGIATE MIXER (W) - 206 over 36 games
    CLASSIC DRAFT (W) - 196 over 132 games

    2014-2015

  • Sierra Challenge (S) - 212 over 60 games
    COLLEGIATE MIXER (W) - 209 over 65 games
    CLASSIC DRAFT (W) - 198 over 130 games

    2013-2014

  • Sierra Challenge (S) - 212 over 52 games
    COLLEGIATE MIXER (W) - 203 over 33 games
    CLASSIC DRAFT (W) - 194 over 124 games

    2012-2013

  • Petersen Classic (W) - 218 over 60 games
    Sierra Challenge (S) - 216 over 56 games
    COLLEGIATE MIXER (W) - 203 over 24 games
    CLASSIC DRAFT (W) - 193 over 60 games

    2011-2012

  • Sierra Challenge (S) - 205 over 56 games

    2008-2009

  • Premier Travel League (Win 08) (W) - 199 over 30 games

    2007-2008

  • Premier Travel League (Sum 08) (S) - data not found
    Premiers Travel League (W) - 201 over 80 games

    2006-2007

  • Premier Travel League (Sum 07) (S) - data not found
    PBA Experience Yth (Sum 07)/Cedar Lanes, Inc (S) - data not found
    Yosemite Bowling Conference (Win 06)/Fresno State (W) - 198 over 24 games
    Premier Travel League (Win 06)/Dave Jarosz (W) - 189 over 105 games
    Collegiate Mixer (Win 06)/Fresno State (W) - 187 over 63 games

    2005-2006

  • JohnsPizza (S) - data not found
    Masters (Sum 06)/Sierra Lanes, Amf (S) - data not found
    Premier Travel League (Sum 06)/Dave Jarosz (S) - data not found
    Sat Masters (Win 05)/Sierra Lanes, Amf (W) - 201 over 44 games
    Collegiate Mixer (Win 05)/Fresno State (W) - 189 over 57 games

    2004-2005

  • Winter Classic Trios 04-05 (Winter 04)/Presidio Bo (W) - 144 over 69 games

    2003-2004

  • Summer Classic Trios 2004 (Sum 04)/Presidio Bowlin (S) - data not found
    Sat. Juniors (Winter 03)/Sierra Lanes, Amf (W) - 159 over 21 games

    Sport Conversions

    187 -> 216
    194 -> 223
    196 -> 225
    198 -> 227

Memberships

    Gregory J Colburn has an active USBC membership.

    Current:

    Central California USBC - 2025-08-01 - 2026-07-31

    Past:

    Central California USBC - 2024-08-01 - 2025-07-31
    Central California USBC - 2023-08-01 - 2024-07-31
    Central California USBC - 2017-08-01 - 2018-07-31
    Central California USBC - 2016-08-01 - 2017-07-31
    Central California USBC - 2015-08-01 - 2016-07-31
    USBC HQ - 2015-08-01 - 2016-07-31
    Central California USBC - 2014-08-01 - 2015-07-31
    Central California USBC - 2014-08-01 - 2015-07-31
    USBC HQ - 2014-08-01 - 2015-07-31
    Central California USBC - 2013-08-01 - 2014-07-31
    USBC HQ - 2013-08-01 - 2014-07-31
    Central California USBC - 2012-08-01 - 2013-07-31
    Kings County USBC - 2012-08-01 - 2013-07-31
    USBC HQ - 2012-08-01 - 2013-07-31
    Central California USBC - 2011-03-15 - 2012-07-31
    Nor-Cal USBC Youth - 2008-08-01 - 2009-07-31
    Nor-Cal USBC Youth - 2007-08-01 - 2008-07-31
    Nor-Cal USBC Youth - 2006-08-01 - 2007-07-31
    Nor-Cal USBC Youth - 2005-08-01 - 2006-07-31
    Nor-Cal USBC Youth - 2004-03-15 - 2005-07-31
    Nor-Cal USBC Youth - 2003-08-01 - 2004-07-31

Honors

300 games (2)

  • 300 (Game 1) on May 20 2013 at Lucky Strike Fresno - Games: 300-0-0
  • 300 (Game 2) on March 4 2007 at Diablo Valley Bowl - Games: 178-300-159


    • 11 in a row (2)

  • October 3 2012 at K C Bowl
  • June 21 2008 at Lucky Strike Fresno


    • Open Championships

    Entering Average: 220

    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:
    245 (standard) -> 220 (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.

    IGBO TAD

    ( gms)



    Tournaments

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