Leagues

    USBC has data for Derek Chinn starting from 2015.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2025: 188 over 30 games (House)
    2025: 165 over 102 games (Sport)
    2025: 165 over 27 games (Challenge)
    2023: 190 over 114 games (House)
    2023: 164 over 27 games (Sport)

    League Averages

    2025-2026

  • 800 Scratch (W) - data not found
    PBA Experience (W) - data not found

    2024-2025

  • Same Ball League (S) - 188 over 30 games
    PBA Experience (S) - 173 over 27 games
    Sport Shot Trios (S) - 165 over 27 games
    PBA Experience (W) - 162 over 75 games

    2022-2023

  • Jr Strikers W22 (W) - 198 over 45 games
    Jr Strikers Summer 2023 (S) - 188 over 21 games
    King Pins W22 (W) - 184 over 48 games
    Sport Shot Trios Summer 2023 (S) - 164 over 27 games

    2021-2022

  • Generation Gap (W) - 191 over 66 games
    King Pins (W) - 189 over 57 games
    Sport Shot Trios (S) - 152 over 24 games

    2020-2021

  • Generation Gap (S) - 185 over 42 games
    Stealths (S) - 185 over 42 games

    2019-2020

  • Stealths (W) - 171 over 57 games

    2018-2019

  • Bowlers Experience Too Jr Trios (S) - 164 over 24 games
    NorCal Jr/Adult Travel League (S) - 158 over 21 games
    EA Dublin Stealths (W) - 150 over 48 games

    2017-2018

  • EA Dublin PBA Strikeforce (S) - data not found
    EA Dublin Match Play (W) - 175 over 4 games
    EA Dublin Stealths (W) - 140 over 60 games

    2016-2017

  • Danville Junior Adult Doubles (S) - 149 over 33 games
    Danville Saturday Pros (W) - 127 over 48 games

    2015-2016

  • Danville Saturday Pros II (W) - data not found
    Norcal BC Travel League (W) - data not found
    Danville Jr. Adult Doubles Summer (S) - 133 over 36 games

    2014-2015

  • Saturday Pros (W) - data not found
    Danville Saturday Pros II (W) - 129 over 45 games
    Danville Jr/Adult Doubles Summer (S) - 110 over 30 games

    Sport Conversions

    152 -> 175
    162 -> 187
    164 -> 190
    173 -> 201

    Challenge Conversions

    165 -> 179

Memberships

    Derek Chinn has an active USBC membership.

    Current:

    Alameda County USBC - 2025-08-01 - 2026-07-31

    Past:

    Contra Costa County USBC - 2025-08-01 - 2026-07-31
    Alameda County USBC - 2024-08-01 - 2025-07-31
    Alameda County USBC - 2022-08-01 - 2023-07-31
    Alameda County USBC - 2021-08-01 - 2022-07-31
    Alameda County USBC - 2020-08-01 - 2021-07-31
    Alameda County USBC - 2019-08-01 - 2020-07-31
    Alameda County USBC - 2019-08-01 - 2020-07-31
    Alameda County USBC - 2018-08-01 - 2019-07-31
    Nor-Cal USBC Youth - 2017-08-01 - 2018-07-31
    Nor-Cal USBC Youth - 2016-08-01 - 2017-07-31
    Nor-Cal USBC Youth - 2015-08-01 - 2016-07-31
    Nor-Cal USBC Youth - 2014-08-01 - 2015-07-31

Honors

Open Championships

Entering Average: 173

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
201 (standard) -> 173 (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.