Competitive peak
USBC bowler profile
Ronald S Izumi
League Competitor
272-17724
Bowling since 2002
180+ peak
180+ career avg
500 games
Lifetime average
187.05
Lifetime games
817
Highest average
198
Career honors
0
What this profile flair means
Competitive peak aura
The nameplate aura reflects a highest recorded league average of 198.
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 2002. Sport and challenge conversions are summarized below.
Recent composite averages
2020
House
2019
House
2018
House
2017
House
2015
House
League averages
2019-2020
Ohana W19
· W
2018-2019
Ohana W18
· W
2017-2018
Ohana W17-18
· W
2016-2017
Ohana 16-17
· W
Ohana S17
· S
2014-2015
Ohana W14-15
· W
Ohana S15
· S
2010-2011
San Jose Nisei Handicap
· W
2009-2010
San Jose Nisei Handcp
· S
San Jose Nesei Handicap
· W
2008-2009
San Jose Nisei Handicap (Summer)
· S
San Jose Nisei Handicap
· W
2007-2008
San Jose Niesi Hdcp
· S
San Jose Nisei Handicap
· W
825 Summer Scratch
· S
2006-2007
San Jose Nisei Mixed 4's
· S
S J Nisei 725 Scratch
· W
2005-2006
S J Nisei 725 Scratch
· W
S J Nisei Mixed 4's Summer
· S
2001-2002
Wednesday Night Mixers
· W
USBC standing
Memberships
Santa Clara County USBC
Most recent
Santa Clara County USBC
Past
Santa Clara County USBC
Past
Santa Clara County USBC
Past
Santa Clara County USBC
Past
Santa Clara County USBC
Past
Santa Clara County USBC
Past
Santa Clara County USBC
Past
Santa Clara County USBC
Past
Santa Clara County USBC BA
Past
Santa Clara Valley BA
Past
Santa Clara Valley BA
Past
Career milestones
Honors
0900 series
0800 series
0300 games
011 in a row
Tournament history
Open Championships
Adjusted entering average
220
How it was calculated
The highest sport-adjusted average from the last three bowling seasons is used until 27 Open Championship games are available.
245 → 220
The Open Championships average uses the most recent 27 games bowled from 2016 through 2025. Search historical championship scores.