BowlerProfiles
Ranking
Elite peak
USBC bowler profile

Robert A Ditz Jr

Perfect Game Bowler
6123-1427 Bowling since 2001
×1 300 games ×1 11 in a row
220+ peak 200+ career avg 500 games Honor earned
Lifetime average 213.4 Across all recorded seasons
Lifetime games 579 USBC-recorded games
Highest average 224 60 games
Career honors 2 Recognized achievements
What this profile flair means
Elite peak aura

The nameplate aura reflects a highest recorded league average of 224.

Perfect Game Bowler

Awarded for recording a sanctioned 300 game.

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

2024 House
241 average · 3 games
2016 House
212 average · 39 games
2015 House
214 average · 78 games
2014 House
224 average · 60 games
2013 House
221 average · 60 games

League averages

2023-2024

Wednesday Loop · W
241 average · 3 games

2015-2016

St Martin Of Tours Mens · W
212 average · 39 games

2014-2015

St Martin Of Tours Mens · W
214 average · 78 games

2013-2014

St Martin Mens · W
224 average · 60 games

2012-2013

St Martin Mens · W
221 average · 60 games

2011-2012

St Martin Mens · W
216 average · 66 games

2010-2011

St Martin Mens · W
199 average · 60 games

2009-2010

St Martin Mens · W
210 average · 69 games

2008-2009

St Martin Mens · W
197 average · 78 games

2007-2008

St Martin Mens · W
200 average · 66 games

2006-2007

Sportsman · W
Data not found

2005-2006

Monday Sports Shot · W
Data not found

2004-2005

Sports Shot League · W
Data not found
Sports Shot II · W
Data not found
Tuesday Scratch Match 05 · S
Data not found
High Rollers · W
Data not found

2003-2004

Sports Shot · W
Data not found
JBC Travel Lg.-Gold Div · W
Data not found
Junior Scratch Match · S
Data not found
Hackers · W
Data not found
High Rollers · W
Data not found

2002-2003

Jr Scratch Match · S
Data not found
Hackers · W
Data not found
Adult/Youth Scratch Trio · S
Data not found
JBC Travel Lg.-Silver Div. · W
Data not found

2001-2002

Saturday Hackers · W
Data not found
JBC Travel Lg - Silver Div · W
Data not found

2000-2001

A/C Scratch Trio · S
Data not found
USBC standing

Memberships

Not currently active
St Louis USBC Most recent
2025-08-01 — 2026-07-31
St Louis USBC Past
2023-08-01 — 2024-07-31
Jeffco USBC Past
2022-08-01 — 2023-07-31
St Louis USBC Past
2020-08-01 — 2021-07-31
St Louis USBC Past
2015-08-01 — 2016-07-31
St Louis USBC Past
2014-08-01 — 2015-07-31
St Louis USBC Past
2013-08-01 — 2014-07-31
St Louis USBC Past
2012-08-01 — 2013-07-31
St Louis USBC Past
2011-08-01 — 2012-07-31
St Louis USBC Past
2010-08-01 — 2011-07-31
St Louis USBC Past
2009-08-01 — 2010-07-31
St Louis USBC Past
2008-08-01 — 2009-07-31
St Louis USBC Past
2007-08-01 — 2008-07-31
St Louis USBC Past
2006-08-01 — 2007-07-31
Jefferson County YABA Past
2005-08-01 — 2006-07-31
Jefferson County YABA Past
2004-03-15 — 2005-07-31
Gr St Louis YABA Past
2003-08-01 — 2004-07-31
Jefferson County YABA Past
2003-08-01 — 2004-07-31
Gr St Louis YABA Past
2002-08-01 — 2003-07-31
Gr St Louis YABA Past
2001-08-01 — 2002-07-31
Gr St Louis YABA Past
2000-08-01 — 2001-07-31
Career milestones

Honors

0900 series
0800 series
1300 games
111 in a row

300 games

Perfect game · St Charles Lanes
March 6 2004 · 300-208-175

11 in a row

11 consecutive strikes · Du Bowl Lanes
November 6 2012
Tournament history

Open Championships

Adjusted entering average 220 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.

245 → 220

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