Leagues

    USBC has data for Katelyn Nguyen starting from 2013.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2025: 179 over 78 games (House)
    2020: 179 over 78 games (House)
    2019: 174 over 102 games (House)
    2019: 161 over 36 games (Sport)
    2018: 162 over 130 games (House)

    League Averages

    2025-2026

  • Sleepyheads (W) - data not found

    2024-2025

  • Sleepyheads (W) - 179 over 78 games

    2019-2020

  • CFB - Jr Scratch 2019-20 (W) - 179 over 78 games

    2018-2019

  • CFB Jr. Scratch (W) - 174 over 102 games
    Jr/Adult PBA S19 (S) - 161 over 36 games

    2017-2018

  • CFB Junior Scratch (W) - 166 over 94 games
    CFB Jr Adult PBA (S) - 150 over 36 games

    2016-2017

  • 4th Street Bowl Juniors (W) - data not found

    2015-2016

  • 4th Street Bowl Juniors (W) - 155 over 65 games

    2014-2015

  • 4th street Juniors (W) - data not found

    2013-2014

  • 4th Street Bowl Juniors (W) - 140 over 60 games

    2012-2013

  • 4th Street Juniors - 4th Street Bowl (W) - 106 over 69 games

    Sport Conversions

    161 -> 186

Memberships

    Katelyn Nguyen has an active USBC membership.

    Current:

    Santa Clara County USBC - 2025-08-01 - 2026-07-31

    Past:

    Santa Clara County USBC - 2024-08-01 - 2025-07-31
    Alameda County USBC - 2023-08-01 - 2024-07-31
    USBC HQ - 2022-08-01 - 2023-07-31
    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
    Nor-Cal USBC Youth - 2013-08-01 - 2014-07-31
    Nor-Cal USBC Youth - 2012-08-01 - 2013-07-31

Honors

Open Championships

Entering Average: 155

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
179 (standard) -> 155 (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.