Leagues

    USBC has data for Mari Masunaga starting from 2024.
    Sport/Challenge average conversions are located at the bottom of the page.

    Recent Composite Averages

    2026: 144 over 51 games (House)
    2025: 132 over 66 games (House)
    2024: 98 over 63 games (House)

    League Averages

    2025-2026

  • EBNBA Jr. Classic (W) - 144 over 51 games

    2024-2025

  • EBNBA Jr. Classic (W) - 132 over 66 games

    2023-2024

  • EBNBA Jr. Classic (W) - 98 over 63 games


Memberships

    Mari Masunaga has an active USBC membership.

    Current:

    Contra Costa County USBC - 2025-08-01 - 2026-07-31

    Past:

    Santa Clara County USBC - 2025-08-01 - 2026-07-31
    Contra Costa County USBC - 2024-08-01 - 2025-07-31
    Contra Costa County USBC - 2023-08-01 - 2024-07-31

Honors

Open Championships

Entering Average: 123

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
132 (standard) -> 123 (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.