Scratch peak
USBC bowler profile
Miranda Duff
Proven Competitor
16-136553
Bowling since 2017
200+ peak
160+ career avg
1K games
Lifetime average
161
Lifetime games
1027
Highest average
200
Career honors
0
What this profile flair means
Scratch peak aura
The nameplate aura reflects a highest recorded league average of 200.
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 2017. Sport and challenge conversions are summarized below.
Recent composite averages
Year2026
Type
House
Average197
Games125
Year2025
Type
House
Average195
Games133
Year2024
Type
House
Average185
Games124
League averages
2025-2026
League
Saturday Morning Youth-St Clair
SeasonW
Average197
Games84
League
Youth 2 Ball Challenge
SeasonS
Average195
Games41
2024-2025
League
JG Lg 1 Fall 2024
Sport
SeasonW
Average & games
League
Youth 2 Ball Challenge
SeasonS
Average200
Games45
League
Saturday Morning Youth-St Clair
SeasonW
Average193
Games88
2023-2024
League
Sun Nite Jr Gold
Sport
SeasonW
Average & games
League
Youth 2 Ball Challenge
SeasonS
Average189
Games48
League
Saturday Morning Youth-St Clair
SeasonW
Average183
Games76
League
Sunday Night Jr Gold Lg 4
Sport
SeasonS
Average165
Games24
League
Sunday Night Jr Gold Lg 3
Sport
SeasonW
Average153
Games24
Show earlier league averages Hide earlier league averages
2022-2023
League
Youth 2 Ball Challenge
SeasonS
Average & games
League
Saturday Morning Youth
SeasonW
Average170
Games56
League
High School Challenge League
Challenge
SeasonS
Average169
Games63
2021-2022
League
Saturday Morning Youth
SeasonW
Average158
Games84
2020-2021
League
Thursday Challenge
Challenge
SeasonS
Average143
Games58
League
Saturday Morning Youth
SeasonW
Average135
Games54
2019-2020
League
Saturday Morning Youth (St Clair)
SeasonW
Average135
Games66
2018-2019
League
Saturday Morning Youth
SeasonW
Average110
Games84
2017-2018
League
Saturday Morning Youth
SeasonW
Average94
Games81
2016-2017
League
Saturday Morning Youth
SeasonW
Average74
Games51
Sport conversions
153→176
165→191
Challenge conversions
143→153
169→184
USBC standing
Memberships
AssociationTri-County Illinois USBC
StatusCurrent
From2026-08-01
Through2027-07-31
AssociationUSBC HQ
StatusCurrent
From2026-08-01
Through2027-07-31
AssociationIBC Youth HQ
StatusPast
From2025-08-01
Through2026-07-31
AssociationTri-County Illinois USBC
StatusPast
From2025-08-01
Through2026-07-31
AssociationIBC Youth HQ
StatusPast
From2024-08-01
Through2025-07-31
Show earlier memberships Hide earlier memberships
AssociationTri-County Illinois USBC
StatusPast
From2024-08-01
Through2025-07-31
AssociationIBC Youth HQ
StatusPast
From2023-08-01
Through2024-07-31
AssociationTri-County Illinois USBC
StatusPast
From2023-08-01
Through2024-07-31
AssociationTri-County Illinois USBC
StatusPast
From2022-08-01
Through2023-07-31
AssociationTri-County Illinois USBC
StatusPast
From2021-08-01
Through2022-07-31
AssociationTri-County Illinois USBC
StatusPast
From2020-08-01
Through2021-07-31
AssociationTri-County Illinois USBC
StatusPast
From2019-08-01
Through2020-07-31
AssociationTri-County Illinois USBC
StatusPast
From2018-08-01
Through2019-07-31
AssociationTri-County Illinois USBC
StatusPast
From2017-08-01
Through2018-07-31
AssociationTri-County Illinois USBC
StatusPast
From2016-08-01
Through2017-07-31
Career milestones
Honors
0900 series
0800 series
0300 games
011 in a row
Tournament history
Open Championships
Adjusted entering average
173
How it was calculated
The highest sport-adjusted average from the last three bowling seasons is used until 27 Open Championship games are available.
2024/25200 → 173
Your Open Championships average is calculated from your 27 most recent games bowled between 2018 and 2026.
Search historical Open Championships scores.