Leagues

    USBC has data for Gary S Silvanic starting from 2017.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2025: 176 over 75 games (House)
    2022: 188 over 80 games (House)
    2021: 188 over 39 games (House)
    2020: 185 over 144 games (House)
    2019: 177 over 126 games (House)

    League Averages

    2025-2026

  • Monday Mayhem (W) - data not found

    2024-2025

  • Monday Mayhem (W) - 182 over 36 games
    Same Ball League (S) - 170 over 39 games

    2021-2022

  • Generation Gap (W) - 191 over 44 games
    Hammertime Trios (S) - 184 over 36 games

    2020-2021

  • Generation Gap (S) - 188 over 39 games

    2019-2020

  • Junior/Adult Winter (W) - data not found
    Generation Gap (W) - 188 over 75 games
    815 Ekman Majors (W) - 181 over 69 games

    2018-2019

  • Generation Gap (S) - 194 over 27 games
    Junior/Adult Winter (W) - 183 over 39 games
    Summer Jr/Adult (S) - 175 over 27 games
    SYC Jr. Adult (W) - 159 over 33 games

    2017-2018

  • Generation Gap (W) - 187 over 33 games
    Gen Gap - Spring (W) - 181 over 42 games
    Summer Jr/Adult (S) - 181 over 27 games
    Generation Gap (S) - 170 over 15 games
    P B A Strike Force (S) - 165 over 15 games

    2016-2017

  • Family Gen Gap W-17 (W) - 167 over 42 games

    Sport Conversions

    165 -> 191

Memberships

    Gary S Silvanic has an active USBC membership.

    Current:

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

    Past:

    Alameda County USBC - 2024-08-01 - 2025-07-31
    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
    Contra Costa County USBC - 2019-08-01 - 2020-07-31
    Alameda County USBC - 2018-08-01 - 2019-07-31
    Contra Costa County USBC - 2018-08-01 - 2019-07-31
    Alameda County USBC - 2017-08-01 - 2018-07-31
    Contra Costa County USBC - 2017-08-01 - 2018-07-31
    Alameda County USBC - 2016-08-01 - 2017-07-31

Honors

300 games (1)

  • 300 (Game 3) on October 30 2019 at Danville Bowl - Games: 195-180-300


    • Open Championships

    Entering Average: 158

    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
    182 (standard) -> 158 (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.