BowlerProfiles
Ranking
Competitive peak
USBC bowler profile

Roger C Bolwerk

Proven Competitor
2436-988 Bowling since 2001
180+ peak 170+ career avg 1K games
Lifetime average 175.46 Across all recorded seasons
Lifetime games 1494 USBC-recorded games
Highest average 185 48 games
Career honors 0 Recognized achievements
What this profile flair means
Competitive peak aura

The nameplate aura reflects a highest recorded league average of 185.

Proven Competitor

Awarded for at least 1,000 recorded league games.

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 2001. Sport and challenge conversions are summarized below.

Recent composite averages

2026 House
170 average · 168 games
2025 House
161 average · 66 games
2024 House
171 average · 159 games
2023 House
176 average · 255 games
2022 House
181 average · 240 games

League averages

2025-2026

McNamara & Thiel Wed. Senior Men · W
Data not found
Boda's Tuesday Senior Mixed · W
174 average · 84 games
Gino's Monday Seniors · W
166 average · 84 games

2024-2025

Boda's Tuesday Senior Mixed · W
Data not found
Gino's Monday Seniors · W
163 average · 45 games
McNamara & Thiel Wed. Senior Men · W
157 average · 21 games

2023-2024

McNamara & Thiel Wed. Senior Men · W
174 average · 57 games
Gino's Monday Seniors · W
170 average · 60 games
Friday Night Early Mixed · W
169 average · 42 games

2022-2023

Boda's Tuesday Senior Mixed · W
Data not found
McNamara & Thiel Wed. Senior Men · W
178 average · 87 games
Thursday Night Mens · W
177 average · 78 games
Gino's Senior Men's · W
174 average · 90 games

2021-2022

McNamara & Thiel Wed. Senior Men · W
191 average · 18 games
Boda's Tuesday Senior Mixed · W
184 average · 78 games
Gino's Senior Men's · W
180 average · 75 games
Thursday Night Mens · W
178 average · 69 games

2020-2021

McNamara & Thiel Wed. Senior Men · W
Data not found
Gino's Senior Men's L8 · W
177 average · 78 games

2019-2020

Friday Senior Mixed P10 · W
Data not found
Gino's Senior Men's L8 · W
185 average · 48 games

2018-2019

McNamara & Thiel Wed. Senior Men · W
Data not found
Boda's Tues. Senior Mixed L1 · W
182 average · 90 games
Gino's Senior Men's L8 · W
180 average · 87 games

2017-2018

Boda's Tues. Senior Mixed L1 · W
Data not found
Gino's Senior Men's L8 · W
175 average · 69 games

2016-2017

Friday Senior Mixed P10 · W
Data not found
Boda's Wed Senior P4 · W
178 average · 75 games
Gino's Senior Men's L8 · W
173 average · 75 games

2013-2014

Wed Business Mens · W
175 average · 84 games

2000-2001

Dynamic Duos · W
Data not found
USBC standing

Memberships

Not currently active
Fond Du Lac USBC Most recent
2025-08-01 — 2026-07-31
Fond Du Lac USBC Past
2024-08-01 — 2025-07-31
Fond Du Lac USBC Past
2023-08-01 — 2024-07-31
Fond Du Lac USBC Past
2022-08-01 — 2023-07-31
Fond Du Lac USBC Past
2021-08-01 — 2022-07-31
Fond Du Lac USBC Past
2020-08-01 — 2021-07-31
Fond Du Lac USBC Past
2019-08-01 — 2020-07-31
Fond Du Lac USBC Past
2018-08-01 — 2019-07-31
Fond Du Lac USBC BA Past
2017-08-01 — 2018-07-31
Fond Du Lac USBC BA Past
2016-08-01 — 2017-07-31
Fond Du Lac USBC BA Past
2016-08-01 — 2017-07-31
Fox Cities USBC BA Past
2013-08-01 — 2014-07-31
Fox Cities USBC BA Past
2000-08-01 — 2001-07-31
Career milestones

Honors

0900 series
0800 series
0300 games
011 in a row
Tournament history

Open Championships

Adjusted entering average 152 Fewer than 27 recorded Open Championship games

How it was calculated

The highest sport-adjusted average from the last three bowling seasons is used until 27 Open Championship games are available.

2025/26174 → 152

The Open Championships average uses the most recent 27 games bowled from 2016 through 2025. Search historical championship scores.