BowlerProfiles
Ranking
Competitive peak
USBC bowler profile

Ken Shimosaka

League Veteran
266-1321 Bowling since 2002
180+ peak 170+ career avg 2.5K games
Lifetime average 171.63 Across all recorded seasons
Lifetime games 3468 USBC-recorded games
Highest average 198 39 games
Career honors 0 Recognized achievements
What this profile flair means
Competitive peak aura

The nameplate aura reflects a highest recorded league average of 198.

League Veteran

Awarded for at least 2,000 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 2002. Sport and challenge conversions are summarized below.

Recent composite averages

2026 House
149 average · 99 games
2025 House
156 average · 132 games
2024 House
156 average · 144 games
2023 House
161 average · 132 games
2022 House
165 average · 84 games

League averages

2025-2026

Indian Casino Summer 2026 · S
Data not found
Senior Lottery 2025-26 · W
149 average · 99 games

2024-2025

Senior Lottery 2024-25 · W
158 average · 90 games
Indian Casino Summer 2025 · S
152 average · 42 games

2023-2024

Senior Lottery 2023-2024 · W
158 average · 96 games
Indian Casino Summer 2024 · S
152 average · 48 games

2022-2023

Senior Lottery 2022-23 · W
162 average · 87 games
Indian Casino Summer 2023 · S
160 average · 45 games

2021-2022

Senior Lottery 2021-2022 · W
165 average · 84 games

2019-2020

Senior Lottery 2019-2020 · W
166 average · 72 games

2018-2019

Senior Lottery 2018-2019 · W
169 average · 63 games

2017-2018

Senior Lottery 2017-2018 · W
164 average · 93 games

2016-2017

Senior Lottery · W
166 average · 90 games

2015-2016

Senior Lottery · W
166 average · 90 games

2014-2015

Senior Lottery · W
166 average · 90 games

2013-2014

Senior Lottery · W
173 average · 78 games
Tuesday Nikkei Invitational Trios · W
171 average · 78 games

2012-2013

Nikkei Inv. Scratch Trios · W
173 average · 81 games
Nikkei Summer Mixed Dbls · S
172 average · 33 games
Senior Lottery · W
170 average · 87 games

2011-2012

Nikkei Invitational Mixed Trios · W
173 average · 84 games
Senior Lottery · W
173 average · 90 games

2010-2011

Nikkei Invitational Mixed Trios · W
177 average · 84 games
Nikkei Summer Trios 2011 · S
175 average · 30 games
Senior Lottery · W
172 average · 87 games

2009-2010

Nikkei Invitational Mixed Trios · W
172 average · 72 games
Senior Lottery · W
167 average · 81 games
Nikkei Summer Mixed Trios 2010 · S
163 average · 27 games

2008-2009

Nikkei Invitational Mixed Trios · W
170 average · 87 games
Nikkei Jr/Adult Invitational Trios · S
165 average · 30 games
Senior Lottery · W
164 average · 84 games

2007-2008

Serra Nikkei Invitational Trios · W
177 average · 87 games
Senior Lottery · W
176 average · 87 games
Nikkei Invitational Trios · S
171 average · 30 games
Senior Lottery · S
168 average · 39 games

2006-2007

Senior Lottery · S
198 average · 39 games
Senior Lottery · W
197 average · 84 games
Nikkei Invitational Mixed Trio's · S
195 average · 30 games
Serra Nikkei Invitational Trios · W
186 average · 84 games

2005-2006

Nikkei Summer Mixed Trios · S
Data not found
Serra Nikkei Invitational · W
183 average · 84 games
Senior Lottery · W
182 average · 84 games

2003-2004

Serra Nikkei Invitational · W
177 average · 87 games
Nikkei Summer Trios · S
177 average · 33 games
Senior Lottery · W
176 average · 90 games
Nikkei Mixed Invitational · W
165 average · 78 games

2002-2003

Serra Nikkei Invitational · W
187 average · 84 games
Nikkei Mixed Inv. · W
176 average · 75 games

2001-2002

Nikkei Mixed Inv. · W
187 average · 87 games
Nikkei Mixed Inv. · W
177 average · 84 games
USBC standing

Memberships

Not currently active
San Francisco USBC Most recent
2025-08-01 — 2026-07-31
San Francisco USBC Past
2024-08-01 — 2025-07-31
San Francisco USBC Past
2023-08-01 — 2024-07-31
San Francisco USBC Past
2022-08-01 — 2023-07-31
San Francisco USBC Past
2021-08-01 — 2022-07-31
San Francisco USBC Past
2019-08-01 — 2020-07-31
San Francisco USBC Past
2018-08-01 — 2019-07-31
San Francisco USBC Past
2017-08-01 — 2018-07-31
San Francisco USBC Past
2016-08-01 — 2017-07-31
San Francisco USBC Past
2015-08-01 — 2016-07-31
San Francisco USBC Past
2014-08-01 — 2015-07-31
San Francisco USBC Past
2013-08-01 — 2014-07-31
San Francisco USBC Past
2012-08-01 — 2013-07-31
San Francisco USBC Past
2011-08-01 — 2012-07-31
San Francisco USBC Past
2010-08-01 — 2011-07-31
San Francisco USBC Past
2009-08-01 — 2010-07-31
San Francisco USBC Past
2008-08-01 — 2009-07-31
San Francisco USBC Past
2007-08-01 — 2008-07-31
San Francisco USBC Past
2006-08-01 — 2007-07-31
San Francisco BA Past
2005-08-01 — 2006-07-31
San Francisco BA Past
2003-08-01 — 2004-07-31
San Francisco BA Past
2002-08-01 — 2003-07-31
San Francisco BA Past
2001-08-01 — 2002-07-31
Career milestones

Honors

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

Open Championships

Adjusted entering average 140 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.

2024/25158 → 140

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