Rising peak
USBC bowler profile
Corey R Grzesiak
League Competitor
9111-9187
Bowling since 2026
160+ peak
100 games
Lifetime average
159.34
Lifetime games
222
Highest average
172
Career honors
0
What this profile flair means
Rising peak aura
The nameplate aura reflects a highest recorded league average of 172.
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 2026. Sport and challenge conversions are summarized below.
Recent composite averages
Year2026
Type
House
Average157
Games222
League averages
2025-2026
League
Thursday Thunder Have a Ball
SeasonS
Average172
Games42
League
Mile's Machine
SeasonW
Average155
Games93
League
Michael Allen Genco Memorial
SeasonW
Average151
Games87
USBC standing
Memberships
AssociationJamestown Area USBC
StatusMost recent
From2025-08-01
Through2026-07-31
Career milestones
Honors
0900 series
0800 series
0300 games
011 in a row
Tournament history
Open Championships
Adjusted entering average
150
How it was calculated
The highest sport-adjusted average from the last three bowling seasons is used until 27 Open Championship games are available.
2025/26172 → 150
Your Open Championships average is calculated from your 27 most recent games bowled between 2018 and 2026.
Search historical Open Championships scores.