Elite peak
USBC bowler profile
Gregory J Colburn
Decorated Bowler
5495-16041
Bowling since 2004
×1
800 series
×3
300 games
×2
11 in a row
220+ peak
200+ career avg
1K games
5+ honors
Lifetime average
202.25
Lifetime games
1829
Highest average
227
Career honors
6
What this profile flair means
Elite peak aura
The nameplate aura reflects a highest recorded league average of 227.
Decorated Bowler
Awarded for reaching at least five recognized career honors.
Honor pins
Each pin names a recognized honor and shows how many times it was earned.
Milestone marks
These celebrate peak average, career average, recorded games, and accumulated honors separately.
Historical records
League History
USBC records begin in 2004. Sport and challenge conversions are summarized below.
Recent composite averages
Year2026
Type
House
Average216
Games56
Year2026
Type
Sport
Average172
Games132
Year2018
Type
Sport
Average187
Games56
League averages
2026-2027
League
CLASSIC DRAFT
Sport
SeasonW
Average & games
League
MONDAY MIXERS
SeasonW
Average & games
2025-2026
League
Monday Doubles
SeasonS
Average216
Games56
League
CLASSIC DRAFT
Sport
SeasonW
Average172
Games132
2017-2018
League
CLASSIC DRAFT
Sport
SeasonW
Average187
Games56
League
Sierra Challenge
SeasonS
Average183
Games16
Show earlier league averages Hide earlier league averages
2016-2017
League
CLASSIC DRAFT
Sport
SeasonW
Average187
Games132
2015-2016
League
Sierra Challenge
SeasonS
Average214
Games56
League
COLLEGIATE MIXER
SeasonW
Average206
Games36
League
CLASSIC DRAFT
Sport
SeasonW
Average196
Games132
2014-2015
League
Sierra Challenge
SeasonS
Average212
Games60
League
COLLEGIATE MIXER
SeasonW
Average209
Games65
League
CLASSIC DRAFT
Sport
SeasonW
Average198
Games130
2013-2014
League
Sierra Challenge
SeasonS
Average212
Games52
League
COLLEGIATE MIXER
SeasonW
Average203
Games33
League
CLASSIC DRAFT
Sport
SeasonW
Average194
Games124
2012-2013
League
Petersen Classic
SeasonW
Average218
Games60
League
Sierra Challenge
SeasonS
Average216
Games56
League
COLLEGIATE MIXER
SeasonW
Average203
Games24
League
CLASSIC DRAFT
SeasonW
Average193
Games60
2011-2012
League
Sierra Challenge
SeasonS
Average205
Games56
2008-2009
League
Premier Travel League (Win 08)
SeasonW
Average199
Games30
2007-2008
League
Premier Travel League (Sum 08)
SeasonS
Average & games
League
Premiers Travel League
SeasonW
Average201
Games80
2006-2007
League
Premier Travel League (Sum 07)
SeasonS
Average & games
League
PBA Experience Yth (Sum 07)/Cedar Lanes, Inc
SeasonS
Average & games
League
Yosemite Bowling Conference (Win 06)/Fresno State
SeasonW
Average198
Games24
League
Premier Travel League (Win 06)/Dave Jarosz
SeasonW
Average189
Games105
League
Collegiate Mixer (Win 06)/Fresno State
SeasonW
Average187
Games63
2005-2006
League
JohnsPizza
SeasonS
Average & games
League
Masters (Sum 06)/Sierra Lanes, Amf
SeasonS
Average & games
League
Premier Travel League (Sum 06)/Dave Jarosz
SeasonS
Average & games
League
Sat Masters (Win 05)/Sierra Lanes, Amf
SeasonW
Average201
Games44
League
Collegiate Mixer (Win 05)/Fresno State
SeasonW
Average189
Games57
2004-2005
League
Winter Classic Trios 04-05 (Winter 04)/Presidio Bo
SeasonW
Average144
Games69
2003-2004
League
Summer Classic Trios 2004 (Sum 04)/Presidio Bowlin
SeasonS
Average & games
League
Sat. Juniors (Winter 03)/Sierra Lanes, Amf
SeasonW
Average159
Games21
Sport conversions
172→199
187→216
194→223
196→225
198→227
USBC standing
Memberships
AssociationCentral California USBC
StatusCurrent
From2026-08-01
Through2027-07-31
AssociationCentral California USBC
StatusPast
From2025-08-01
Through2026-07-31
AssociationCentral California USBC
StatusPast
From2024-08-01
Through2025-07-31
AssociationCentral California USBC
StatusPast
From2023-08-01
Through2024-07-31
AssociationCentral California USBC
StatusPast
From2017-08-01
Through2018-07-31
Show earlier memberships Hide earlier memberships
AssociationCentral California USBC
StatusPast
From2016-08-01
Through2017-07-31
AssociationCentral California USBC
StatusPast
From2015-08-01
Through2016-07-31
AssociationUSBC HQ
StatusPast
From2015-08-01
Through2016-07-31
AssociationCentral California USBC
StatusPast
From2014-08-01
Through2015-07-31
AssociationCentral California USBC
StatusPast
From2014-08-01
Through2015-07-31
AssociationUSBC HQ
StatusPast
From2014-08-01
Through2015-07-31
AssociationCentral California USBC
StatusPast
From2013-08-01
Through2014-07-31
AssociationUSBC HQ
StatusPast
From2013-08-01
Through2014-07-31
AssociationCentral California USBC
StatusPast
From2012-08-01
Through2013-07-31
AssociationKings County USBC
StatusPast
From2012-08-01
Through2013-07-31
AssociationUSBC HQ
StatusPast
From2012-08-01
Through2013-07-31
AssociationCentral California USBC
StatusPast
From2011-03-15
Through2012-07-31
AssociationNor-Cal USBC Youth
StatusPast
From2008-08-01
Through2009-07-31
AssociationNor-Cal USBC Youth
StatusPast
From2007-08-01
Through2008-07-31
AssociationNor-Cal USBC Youth
StatusPast
From2006-08-01
Through2007-07-31
AssociationNor-Cal USBC Youth
StatusPast
From2005-08-01
Through2006-07-31
AssociationNor-Cal USBC Youth
StatusPast
From2004-03-15
Through2005-07-31
AssociationNor-Cal USBC Youth
StatusPast
From2003-08-01
Through2004-07-31
Career milestones
Honors
0900 series
1800 series
3300 games
211 in a row
800 series
Series814
Bowling centerBulldog Bowl
DateOctober 19 2026
Game scores277300237
300 games
Bowling centerBulldog Bowl
DateOctober 19 2026
Game scores277300237
Bowling centerLucky Strike Fresno
DateMay 20 2013
Game scores30000
Bowling centerDiablo Valley Bowl
DateMarch 4 2007
Game scores178300159
11 in a row
Bowling centerK C Bowl
DateOctober 3 2012
Bowling centerLucky Strike Fresno
DateJune 21 2008
Tournament history
Open Championships
Adjusted entering average
187
How it was calculated
The highest sport-adjusted average from the last three bowling seasons is used until 27 Open Championship games are available.
2025/26216 → 187
Your Open Championships average is calculated from your 27 most recent games bowled between 2018 and 2026.
Search historical Open Championships scores.