Competitive peak
USBC bowler profile
Jason R Mah Sr
League Competitor
8970-200233
Bowling since 2023
180+ peak
160+ career avg
250 games
Lifetime average
162.13
Lifetime games
401
Highest average
180
Career honors
0
What this profile flair means
Competitive peak aura
The nameplate aura reflects a highest recorded league average of 180.
League Competitor
The starting title for a bowler with recorded league history.
Honor pins
Pins appear after a recognized 300 game, 800 or 900 series, or 11-in-a-row award.
Milestone marks
These celebrate peak average, career average, recorded games, and accumulated honors separately.
Historical records
League History
USBC records begin in 2023. Sport and challenge conversions are summarized below.
Recent composite averages
Year2026
Type
House
Average180
Games41
Year2025
Type
House
Average170
Games63
Year2024
Type
House
Average171
Games136
League averages
2026-2027
League
Renegades
SeasonW
Average & games
2025-2026
League
Summer Bowlers RX
SeasonS
Average & games
League
Renegades
SeasonW
Average180
Games41
2024-2025
League
Renegades
SeasonW
Average & games
League
Wednesday Trios
SeasonW
Average170
Games63
Show earlier league averages Hide earlier league averages
2023-2024
League
Summer Bowlers RX
SeasonS
Average173
Games31
League
Renegades
SeasonW
Average172
Games78
League
Jr/Adult
SeasonW
Average168
Games27
2022-2023
League
Wednesday Trios
SeasonW
Average172
Games71
League
Junior/Adult
SeasonW
Average159
Games42
League
Summer Bowlers RX
SeasonS
Average103
Games48
USBC standing
Memberships
AssociationContra Costa County USBC
StatusCurrent
From2026-08-01
Through2027-07-31
AssociationContra Costa County USBC
StatusPast
From2025-08-01
Through2026-07-31
AssociationContra Costa County USBC
StatusPast
From2024-08-01
Through2025-07-31
AssociationContra Costa County USBC
StatusPast
From2023-08-01
Through2024-07-31
AssociationContra Costa County USBC
StatusPast
From2022-08-01
Through2023-07-31
Career milestones
Honors
0900 series
0800 series
0300 games
011 in a row
Tournament history
Open Championships
Adjusted entering average
156
How it was calculated
The highest sport-adjusted average from the last three bowling seasons is used until 27 Open Championship games are available.
2025/26180 → 156
Your Open Championships average is calculated from your 27 most recent games bowled between 2018 and 2026.
Search historical Open Championships scores.