Leagues

    USBC has data for Justin Knowles starting from 2001.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2025: 246 over 114 games (House)
    2024: 241 over 108 games (House)
    2023: 237 over 123 games (House)
    2022: 232 over 75 games (House)
    2022: 204 over 88 games (Sport)

    League Averages

    2025-2026

  • BOC Mens (W) - data not found
    MSU Men Employees (W) - data not found

    2024-2025

  • MSU Men Employees (W) - 247 over 54 games
    BOC Mens (W) - 246 over 57 games
    UAW Local 724 (W) - 224 over 3 games

    2023-2024

  • 700 League (W) - data not found
    Thursday Mixed Trios (W) - data not found
    G M #7 (W) - 248 over 42 games
    MSU Men Employees (W) - 236 over 66 games

    2022-2023

  • Trio Classic (S) - data not found
    Monday Scratch Trios (W) - 241 over 63 games
    BOC Mens (W) - 233 over 6 games
    Compass Insurance Labatt Blue (W) - 233 over 42 games
    G M #7 (W) - 231 over 6 games
    Dean Misfits (W) - 231 over 3 games
    MSU Men Employees (W) - 218 over 3 games

    2021-2022

  • 700 League (W) - data not found
    Hy State (W) - 232 over 75 games
    Jax 60 Sport (W) - 204 over 88 games

    2020-2021

  • 700 League (W) - data not found
    G M #7 (W) - 238 over 3 games
    Big Money Tuesday (W) - 229 over 39 games
    American Legion (W) - 229 over 3 games

    2019-2020

  • BOC Mens (W) - 244 over 15 games
    Pines Scratch Trio (W) - 233 over 30 games
    Hy State (W) - 227 over 3 games
    Northland Classic (W) - 226 over 9 games
    American Legion (W) - 222 over 15 games
    Dean Misfits (W) - 220 over 3 games
    Monday Majors (W) - 218 over 3 games
    Monday Invitational (W) - 216 over 9 games

    2018-2019

  • Arbor Valley USBC Affiliate (W) - data not found
    G M #7 (W) - 243 over 24 games
    BOC Mens (W) - 231 over 9 games
    Sportsman (W) - 228 over 48 games
    Northland Classic (W) - 221 over 62 games
    Detroit All Star Classic (W) - 202 over 13 games

    2017-2018

  • Airport 700 (W) - data not found
    Boyne Machine Industrial (W) - 231 over 3 games
    Detroit All Star Classic (W) - 229 over 55 games
    Summer Trio Sweeper (S) - 223 over 27 games
    Bill Brown Ford Invitational (W) - 222 over 39 games
    Airport Challenge (W) - 219 over 47 games
    Mason Recreation (W) - 211 over 6 games
    M.A.C. (W) - 204 over 6 games

    2016-2017

  • Invitational Classic (W) - data not found
    Arbor Valley Affiliate (W) - data not found
    Boyne Machine Industrial (W) - 240 over 66 games
    Paragon All Stars (W) - 237 over 81 games
    Boyne Machine Monday Scratch (W) - 235 over 104 games
    USBC Summer (S) - 231 over 6 games

    2015-2016

  • Commercial League (W) - data not found
    Monday Majors (W) - 230 over 24 games
    Budweiser Summer Travel (S) - 229 over 33 games
    Boyne Machine Industrial (W) - 221 over 81 games
    UAW Local 724 (W) - 219 over 3 games
    Invitational Classic (W) - 203 over 24 games

    2014-2015

  • Tuesday Scratch Trio (W) - 225 over 36 games
    Monday Majors (W) - 217 over 96 games
    Hy State (W) - 217 over 15 games
    Cherryland League (W) - 212 over 6 games

    2013-2014

  • Classic (W) - data not found
    Tgif Mixed (W) - data not found
    Tuesday Scratch Trio (W) - 237 over 81 games
    Monday Majors (W) - 232 over 99 games
    Odd Couples (W) - 218 over 42 games

    2012-2013

  • Monday Majors (W) - 223 over 99 games
    Tuesday Night Commercial (W) - 216 over 99 games
    Thursday Duos (S) - 214 over 24 games
    Sunday Mixed Doubles (W) - 210 over 93 games
    COL Mens Trio (W) - 196 over 3 games

    2011-2012

  • Classic (W) - data not found
    Monday Majors (W) - 232 over 99 games
    Tuesday Night Commercial (W) - 223 over 93 games
    Sunday Night Mixed (W) - 212 over 63 games

    2010-2011

  • House American (W) - data not found
    Commercial League (W) - data not found
    Cherryland League (W) - data not found
    Tuesday Night Commercial (W) - 220 over 93 games
    Monday Majors (W) - 217 over 93 games
    Sunday Night Mixed (W) - 202 over 6 games

    2009-2010

  • Tuesday Night Commercial (W) - 221 over 96 games

    2008-2009

  • Timber Teens (W) - data not found

    2007-2008

  • Timber Teens (W) - data not found

    2006-2007

  • Saturday Rock N Rollers (W) - 204 over 84 games

    2005-2006

  • Rosebowl - Majors (W) - data not found
    Timber Teens (W) - 173 over 3 games

    2004-2005

  • Bonanza - Friday Junior Majors (W) - 195 over 15 games
    Bonanza - Sat Junior / Majors (W) - 190 over 45 games

    2003-2004

  • Bonanza - Sat Junior / Majors (W) - 174 over 66 games

    2000-2001

  • Rosebowl Sat 11:30 Bantams (W) - 143 over 81 games

    Sport Conversions

    204 -> 232

    Challenge Conversions

    219 -> 232
    223 -> 235

Memberships

    Justin Knowles has an active USBC membership.

    Current:

    Lansing USBC - 2025-08-01 - 2026-07-31

    Past:

    Lansing USBC - 2024-08-01 - 2025-07-31
    Gr Grand Rapids USBC - 2023-08-01 - 2024-07-31
    Gr Jackson USBC - 2023-08-01 - 2024-07-31
    Lansing USBC - 2023-08-01 - 2024-07-31
    Gr Grand Rapids USBC - 2022-08-01 - 2023-07-31
    Lansing USBC - 2021-08-01 - 2022-07-31
    Gr Jackson USBC - 2020-08-01 - 2021-07-31
    Lansing USBC - 2020-08-01 - 2021-07-31
    Metro Detroit USBC - 2020-08-01 - 2021-07-31
    Arbor Valley USBC - 2019-08-01 - 2020-07-31
    Cadillac Area USBC - 2019-08-01 - 2020-07-31
    Lansing USBC - 2019-08-01 - 2020-07-31
    Metro Detroit USBC - 2019-08-01 - 2020-07-31
    Traverse City USBC - 2019-08-01 - 2020-07-31
    Cadillac Area USBC - 2018-08-01 - 2019-07-31
    Lansing USBC - 2018-08-01 - 2019-07-31
    Metro Detroit USBC - 2018-08-01 - 2019-07-31
    Gr Grand Rapids USBC - 2017-08-01 - 2018-07-31
    Gr Jackson USBC - 2017-08-01 - 2018-07-31
    Mason USBC - 2017-08-01 - 2018-07-31
    Metro Detroit USBC - 2017-08-01 - 2018-07-31
    Arbor Valley USBC - 2016-08-01 - 2017-07-31
    Gr Grand Rapids USBC - 2016-08-01 - 2017-07-31
    Lansing USBC - 2016-08-01 - 2017-07-31
    Mason USBC - 2016-08-01 - 2017-07-31
    Gr Grand Rapids USBC - 2015-08-01 - 2016-07-31
    Lansing USBC - 2015-08-01 - 2016-07-31
    Traverse City USBC BA - 2015-08-01 - 2016-07-31
    Lansing USBC - 2014-08-01 - 2015-07-31
    Traverse City USBC BA - 2014-08-01 - 2015-07-31
    Traverse City USBC BA - 2013-08-01 - 2014-07-31
    Gaylord USBC - 2012-08-01 - 2013-07-31
    Mancelona USBC - 2012-08-01 - 2013-07-31
    Traverse City USBC BA - 2012-08-01 - 2013-07-31
    Mancelona USBC - 2011-08-01 - 2012-07-31
    Traverse City USBC BA - 2011-08-01 - 2012-07-31
    Mancelona USBC - 2010-08-01 - 2011-07-31
    Traverse City USBC BA - 2010-08-01 - 2011-07-31
    Mancelona USBC - 2009-08-01 - 2010-07-31
    IBC Youth HQ - 2008-08-01 - 2009-07-31
    Traverse City USBC Youth - 2008-08-01 - 2009-07-31
    Traverse City USBC Youth - 2007-08-01 - 2008-07-31
    Gaylord USBC - 2006-08-01 - 2007-07-31
    Gr Detroit YABA - 2005-08-01 - 2006-07-31
    Traverse City USBC Youth - 2005-08-01 - 2006-07-31
    Gr Detroit YABA - 2004-03-15 - 2005-07-31
    Gr Detroit YABA - 2003-08-01 - 2004-07-31
    Gr Detroit YABA - 2002-08-01 - 2003-07-31
    Gr Detroit YABA - 2000-08-01 - 2001-07-31
    Gr Detroit YABA - 1999-08-01 - 2000-07-31

Honors

800 series (31)

  • 835 on September 26 2024 at Royal Scot Golf & Bowl - Games: 299-278-258
  • 804 on September 19 2024 at Royal Scot Golf & Bowl - Games: 279-288-237
  • 836 on September 5 2024 at Royal Scot Golf & Bowl - Games: 300-246-290
  • 800 on January 18 2024 at Royal Scot Golf & Bowl - Games: 255-257-288
  • 857 on December 7 2023 at Royal Scot Golf & Bowl - Games: 299-300-258
  • 826 on September 25 2022 at Country Lanes - Games: 278-300-248
  • 825 on September 19 2022 at Rockford Lanes - Games: 300-258-267
  • 808 on September 15 2021 at Royal Scot Golf & Bowl - Games: 300-242-266
  • 848 on February 24 2021 at Jax 60 - Games: 290-268-290
  • 833 on February 11 2021 at Jax 60 - Games: 254-290-289
  • 826 on November 2 2019 at Brighton Bowl - Games: 279-300-247
  • 802 on October 27 2018 at Brighton Bowl - Games: 257-277-268
  • 810 on July 18 2018 at Five Star Lanes - Games: 244-266-300
  • 813 on December 14 2017 at Fraser Star Lanes - Games: 266-299-248
  • 833 on October 1 2017 at Lodge Lanes - Games: 300-244-289
  • 812 on October 1 2017 at Lodge Lanes - Games: 258-276-278
  • 821 on April 19 2017 at Paragon Lanes - Games: 274-278-269
  • 822 on November 5 2016 at Paragon Lanes - Games: 278-300-244
  • 803 on October 5 2016 at Paragon Lanes - Games: 300-236-267
  • 802 on September 29 2016 at Paragon Lanes - Games: 255-279-268
  • 802 on September 2 2016 at Station 300 - Saline - Games: 236-268-298
  • 806 on May 8 2016 at Dondee Lanes - Games: 300-258-248
  • 807 on April 11 2016 at Lucky Jack's - Games: 278-270-259
  • 809 on October 26 2014 at Lucky Jack's - Games: 300-289-220
  • 804 on September 30 2014 at Incredible Mo's - Games: 300-279-225
  • 807 on January 26 2014 at Lucky Jack's - Games: 269-300-238
  • 806 on December 3 2013 at Incredible Mo's - Games: 259-279-268
  • 810 on November 26 2012 at Lucky Jack's - Games: 253-279-278
  • 804 on January 16 2012 at Lucky Jack's - Games: 300-225-279
  • 834 on November 27 2011 at Mancelona Lanes - Games: 288-267-279
  • 804 on October 19 2010 at Mancelona Lanes - Games: 279-226-299


    • 300 games (35)

  • 300 (Game 2) on January 25 2026 at Northway Lanes - Games: 198-300-278
  • 300 (Game 1) on October 28 2025 at Royal Scot Golf & Bowl - Games: 300-247-182
  • 300 (Game 1) on December 3 2024 at Royal Scot Golf & Bowl - Games: 300-0-0
  • 300 (Game 2) on April 27 2024 at Dondee Lanes - Games: 0-300-0
  • 300 (Game 3) on December 19 2023 at Royal Scot Golf & Bowl - Games: 0-0-300
  • 300 (Game 2) on December 7 2023 at Royal Scot Golf & Bowl - Games: 0-300-0
  • 300 (Game 3) on December 19 2022 at Royal Scot Golf & Bowl - Games: 0-0-300
  • 300 (Game 1) on September 25 2022 at Country Lanes - Games: 300-0-0
  • 300 (Game 1) on September 19 2022 at Rockford Lanes - Games: 300-258-267
  • 300 (Game 3) on May 24 2022 at South Point Bowling Plaza - Games: 226-237-300
  • 300 (Game 1) on March 20 2022 at Thunderbowl Lanes - Games: 300-0-0
  • 300 (Game 2) on March 16 2022 at Royal Scot Golf & Bowl - Games: 0-300-0
  • 300 (Game 1) on September 15 2021 at Royal Scot Golf & Bowl - Games: 300-242-266
  • 300 (Game 1) on May 19 2021 at The Orleans - Games: 300-188-189
  • 300 (Game 1) on March 7 2021 at Westland Bowl - Games: 300-0-0
  • 300 (Game 1) on January 19 2020 at Astro Lanes - Games: 300-0-0
  • 300 (Game 1) on November 17 2019 at Royal Scot Golf & Bowl - Games: 300-192-247
  • 300 (Game 2) on November 2 2019 at Brighton Bowl - Games: 279-300-247
  • 300 (Game 3) on January 3 2019 at Royal Scot Golf & Bowl - Games: 0-0-300
  • 300 (Game 1) on November 15 2018 at Royal Scot Golf & Bowl - Games: 300-0-0
  • 300 (Game 3) on July 18 2018 at Five Star Lanes - Games: 244-266-300
  • 300 (Game 2) on February 25 2018 at Hazel Park Bowl - Games: 0-300-0
  • 300 (Game 1) on October 1 2017 at Lodge Lanes - Games: 300-244-289
  • 300 (Game 1) on November 16 2016 at Paragon Lanes - Games: 300-0-0
  • 300 (Game 2) on November 5 2016 at Paragon Lanes - Games: 278-300-244
  • 300 (Game 1) on October 5 2016 at Paragon Lanes - Games: 300-236-267
  • 300 (Game 1) on May 8 2016 at Dondee Lanes - Games: 300-258-248
  • 300 (Game 1) on October 26 2014 at Lucky Jack's - Games: 300-289-220
  • 300 (Game 1) on September 30 2014 at Incredible Mo's - Games: 300-279-225
  • 300 (Game 1) on January 26 2014 at Lucky Jack's - Games: 300-0-0
  • 300 (Game 1) on December 10 2013 at Incredible Mo's - Games: 300-0-0
  • 300 (Game 3) on September 10 2012 at Lucky Jack's - Games: 0-0-300
  • 300 (Game 1) on May 6 2012 at Mancelona Lanes - Games: 300-0-0
  • 300 (Game 1) on January 16 2012 at Lucky Jack's - Games: 300-0-0
  • 300 (Game 1) on January 25 2011 at Mancelona Lanes - Games: 300-197-194


    • 11 in a row (7)

  • October 7 2012 at Mancelona Lanes
  • April 2 2012 at Lucky Jack's
  • April 4 2011 at Lucky Jack's
  • October 25 2010 at Lucky Jack's
  • October 19 2010 at Mancelona Lanes
  • September 20 2010 at Lucky Jack's
  • May 4 2008 at Airway Lanes


    • Open Championships

    Entering Average: 221 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.