Ranking
Premier peak
USBC bowler profile

Dzintars Grinfelds

Decorated Bowler
5495-397 Bowling since 2001
×1 800 series ×6 300 games ×2 11 in a row
230+ peak 200+ career avg 2.5K games 5+ honors
Lifetime average 203.11 Across all recorded seasons
Lifetime games 2954 USBC-recorded games
Highest average 230 30 games
Career honors 9 Recognized achievements
What this profile flair means
Premier peak aura

The nameplate aura reflects a highest recorded league average of 230.

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 2001. Sport and challenge conversions are summarized below.

Recent composite averages

2026
House
210
132
2025
House
212
84
2025
Sport
185
109

League averages

2026-2027

Golobic Scratch Winter 2026/2027
W
Not available in this record

2025-2026

Open Doubles 2025-26
W
Not available in this record
Golobic Scratch Trios (Winter 2025/26)
W
213
90
Golobic Scratch Summer 2026
S
205
42

2024-2025

16 Wild Weeks Fall 2024
W
Not available in this record
Golobic Scratch Winter 2024/25
W
212
84
Golden Gate Classic 2024/25 Winter Sport
W
186
69
Golden Gate Classic Summer 2025 Sport
S
182
40
Show earlier league averages Hide earlier league averages

2023-2024

15 Wild Weeks Jubilee
S
Not available in this record
14 Wild Weeks
W
Not available in this record
15 Wild Weeks
W
Not available in this record
Golobic Scratch Classic Winter 2023-24
W
220
81
Golobic Scratch Summer 2024
S
212
30
Golden Gate Classic Winter 2023-24 Sport
W
187
69

2022-2023

15 Wild Weeks(Fall)2022/2023
W
218
30
16 Wild Weeks Spring 2023
W
215
24
Golobic Scratch(W)2022/2023
W
214
84
14 Wild Weeks Summer
S
203
21

2021-2022

22-23 14 WILD WEEKS
S
230
30
21-22 Golobic Classic
W
218
93
14 Wild Weeks (Winter)
W
212
34

2020-2021

20-21 20 Wild Weeks
S
214
51

2019-2020

19-20 15 Wild Weeks (Winter)
W
Not available in this record
Val Valencia Telco
W
206
53

2018-2019

18-19 14 Wild Weeks (Summer)
S
206
18
Val Valencia 2018-2019
W
204
72
18-19 14 Wild Weeks (Winter)
W
204
30

2017-2018

17-18 14 Wild Weeks (Summer)
S
229
30
Val Valencia Telco 2017-2018
W
211
75
17-18 14 Wild Weeks (Spring)
W
206
12
Serra Vista Jubilee 2018
S
198
6
Golden Gate Open Summer 2018 Sport
S
173
4

2016-2017

Val Valencia
W
209
63
Golden Gate Open Summer 2017 Sport
S
185
48

2015-2016

Val Valencia
W
208
75

2014-2015

Val Valencia
W
206
23
Golden Gate Open Sport
W
184
4
Golden Gate Open Sport
S
179
52

2013-2014

Golden Gate Open Sport
S
192
36
Val Valencia Telco
W
185
3
Golden Gate Open Sport
W
179
120

2012-2013

Val Valencia Telco
W
197
24
Golden Gate Sport Shot Challenge Sport
S
189
52
Golden Gate Open Sport
W
180
88

2011-2012

Val Valencia
W
209
77
Val Valencia Summer
S
207
27
Scratch Draft
W
206
84
Golden Gate Inv Team USA Dbls
W
185
24
Golden Gate Invitational Sport
S
177
36

2010-2011

825 Scratch Match Point Summer 2011
S
Not available in this record
Val Valencia
S
209
33
Wednesday Niters
W
197
65

2009-2010

Peninsula Cup 635 Trios 2009
W
Not available in this record
Scratch Draft 2010
S
195
39

2008-2009

Jr Gold Pro Challenge Spr (Win 08)/Sea Bowl
W
216
30
Jr Gold Pro Challenge Winter (Win 08)/Sea Bowl
W
207
36
Jr Gold Challenge Fall II(Win 08)/Sea Bowl
W
201
42
Bay Area Jr Travel League Gold(Win 08)/Sea Bowl
W
196
30
Jr Gold Challenge (Win 08)/Sea Bowl
W
190
42

2007-2008

Reno Junior Adult
S
Not available in this record
Bay Area Jr Travel League Gold (Win 07)/Sea Bowl
W
209
30
Jr. Gold Pro Challenge (Win 07)/Sea Bowl
W
206
40
Jr. Gold Pro Challenge Win 07-08 (Win 07)/Sea Bowl
W
206
36
Jr. Gold Pro Challenge Spr 08 (Win 07)/Sea Bowl
W
196
24

2006-2007

Reno Jr. Adult League/Sea Bowl
S
Not available in this record
Bay Area Jr Travel Gold (Win 06)/Sea Bowl
W
202
24
Keith O All Stars (Win 06)/Classic Bowling Center
W
201
48
Junior Pro Challenge (Win 06)/Sea Bowl
W
198
72

2005-2006

Reno Junior Adult
S
Not available in this record
Daly City All Stars (Win 05)/Sea Bowl Entertainmet
W
181
39
Daly City All Stars Scratch Doubles (Win 05)/Serra
W
181
45

2004-2005

Bay Area Junior Travel League (Winter 04)/Albany
W
Not available in this record
Jr Pro Point (Sum 05)/Sea Bowl
S
Not available in this record
Junior Scratch Invitational (Winter 04)/Serra Bowl
W
182
76

2003-2004

Reno Jr Adult (Sum 04)/Serra Bowl
S
Not available in this record
KO Jr.Masters (Winter 03) Classic Bowl
W
167
33

2002-2003

Reno Junior Adult(Summer)/Serra Bowl
S
Not available in this record
Jr Scratch/Classic Bowling Center
W
166
54
NFL Jr Adult/Serra Bowl
W
158
36

2001-2002

Reno Junior Adult/Serra Bowl
S
Not available in this record
Homerun Jr Adult League/Sea Bowl
S
Not available in this record

2000-2001

Kool Kats/Sea Bowl
S
Not available in this record
Junior - Adult Scholarship League / Serra Bowl
S
Not available in this record
Classic Rollers/Classic Bowl
W
137
72

Sport conversions

173→201
177→205
179→207
180→208
182→211
184→213
185→214
186→215
187→216
189→218
192→221
USBC standing

Memberships

Active membership
Peninsula USBC
Current
2026-08-01
2027-07-31
Peninsula USBC
Past
2025-08-01
2026-07-31
San Francisco USBC
Past
2025-08-01
2026-07-31
Peninsula USBC
Past
2024-08-01
2025-07-31
Peninsula USBC
Past
2023-08-01
2024-07-31
Show earlier memberships Hide earlier memberships
Peninsula USBC
Past
2022-08-01
2023-07-31
Peninsula USBC
Past
2021-08-01
2022-07-31
Peninsula USBC
Past
2020-08-01
2021-07-31
San Francisco USBC
Past
2020-08-01
2021-07-31
Peninsula USBC
Past
2019-08-01
2020-07-31
Peninsula USBC
Past
2018-08-01
2019-07-31
San Francisco USBC
Past
2018-08-01
2019-07-31
Peninsula USBC
Past
2017-08-01
2018-07-31
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
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
2012-08-01
2013-07-31
San Francisco USBC
Past
2011-08-01
2012-07-31
San Francisco USBC
Past
2011-03-15
2012-07-31
Santa Cruz USBC
Past
2010-08-01
2011-07-31
San Francisco USBC
Past
2009-08-01
2010-07-31
IBC Youth HQ
Past
2008-08-01
2009-07-31
Nor-Cal USBC Youth
Past
2008-08-01
2009-07-31
Nor-Cal USBC Youth
Past
2007-08-01
2008-07-31
Nor-Cal USBC Youth
Past
2006-08-01
2007-07-31
Nor-Cal USBC Youth
Past
2005-08-01
2006-07-31
Nor-Cal USBC Youth
Past
2004-03-15
2005-07-31
Nor-Cal USBC Youth
Past
2003-08-01
2004-07-31
Nor-Cal USBC Youth
Past
2002-08-01
2003-07-31
Nor-Cal USBC Youth
Past
2001-08-01
2002-07-31
Nor-Cal USBC Youth
Past
2000-08-01
2001-07-31
Nor-Cal USBC Youth
Past
1999-08-01
2000-07-31
Career milestones

Honors

0900 series
1800 series
6300 games
211 in a row

800 series

813
Sea Bowl
February 5 2019
234300279

300 games

Bel Mateo Bowl
June 5 2025
216231300
Classic Bowling Center
February 19 2023
194300242
Sea Bowl
February 5 2019
234300279
Sea Bowl
January 17 2017
156211300
Cloverleaf Family Bowl
May 30 2010
30000
Delta Bowl
April 26 2009
30000
Show earlier 300 games Hide earlier 300 games
Bel Mateo Bowl
June 5 2025
216231300
Classic Bowling Center
February 19 2023
194300242
Sea Bowl
February 5 2019
234300279
Sea Bowl
January 17 2017
156211300
Cloverleaf Family Bowl
May 30 2010
30000
Delta Bowl
April 26 2009
30000

11 in a row

National Bowling Stadium
October 11 2013
Sea Bowl
December 6 2008
Tournament history

Open Championships

Entering average 177 Based on 27 Open Championships games

Your Open Championships average is calculated from your 27 most recent games bowled between 2018 and 2026.
Search historical Open Championships scores.