Ranking
Scratch peak
USBC bowler profile

Mark C Gyotoku

Double Honor Bowler
266-1898 Bowling since 2002
×1 800 series ×1 300 games ×1 11 in a row
200+ peak 200+ career avg 2.5K games Honor earned
Lifetime average 208.75 Across all recorded seasons
Lifetime games 2861 USBC-recorded games
Highest average 218 81 games
Career honors 3 Recognized achievements
What this profile flair means
Scratch peak aura

The nameplate aura reflects a highest recorded league average of 218.

Double Honor Bowler

Awarded for recording both a 300 game and an 800 series.

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.

Roster matching

League Finder

Start with one bowling center, then expand across the region. Matches use name, average, gender, game count, and league history when available.

Beta
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Choose a region and bowling center to begin.
Historical records

League History

USBC records begin in 2002. Sport and challenge conversions are summarized below.

Recent composite averages

2026 House
212 average · 81 games
2025 House
218 average · 81 games
2024 House
210 average · 84 games
2023 House
216 average · 72 games
2022 House
199 average · 81 games

League averages

2025-2026

Nisei Invitational 2025-26 · W
212 average · 81 games

2024-2025

Nisei Invitational 2024-25 · W
218 average · 81 games

2023-2024

Nisei Invitational 2023- 24 · W
210 average · 84 games

2022-2023

Nisei Invitational 2022-2023 · W
216 average · 72 games

2021-2022

Nisei Invitational 2021-2022 · W
199 average · 81 games

2019-2020

Nisei Invitational 2019-202 · W
213 average · 63 games

2018-2019

Reno Fun League 2019 · S
Data not found
Nisei Invitational 2018-2019 · W
212 average · 75 games

2017-2018

Nisei Invitational 2017-2018 · W
212 average · 87 games
Reno Fun League 2018 · S
211 average · 42 games

2016-2017

Reno Fun League 2017 · S
213 average · 39 games
Nisei Invitational · W
204 average · 84 games

2015-2016

Reno Fun · S
215 average · 38 games
Nisei Invitational · W
205 average · 87 games

2014-2015

Reno Fun · S
209 average · 30 games
Nisei Invitational · W
205 average · 84 games

2013-2014

Reno Fun Summer · S
204 average · 21 games
Nisei Invitational · W
197 average · 90 games

2012-2013

Nisei Invitational · W
214 average · 87 games

2011-2012

Nisei Invitational · W
216 average · 90 games

2010-2011

Nikkei Invitational Mixed Trios · W
Data not found
Nisei Invitational · W
208 average · 84 games

2009-2010

Nisei Invitational · W
212 average · 87 games

2008-2009

Nisei Invitational · W
206 average · 87 games
825 Scratch · S
201 average · 15 games

2007-2008

830 Scratch · S
Data not found
Nisei Invitational · W
210 average · 75 games
Nikkei Invitational Trios · S
199 average · 27 games

2006-2007

Nisei Invitational · W
213 average · 90 games

2005-2006

Nisei Invitational · W
212 average · 90 games

2004-2005

Nisei Invitational · W
206 average · 690 games
Nikkei Mixed Trios Summer · S
204 average · 33 games

2003-2004

Nisei Invitational · W
213 average · 90 games

2002-2003

Nisei Invitational · W
205 average · 87 games

2001-2002

Nisei Invitational · W
206 average · 90 games
USBC standing

Memberships

Not currently active
San Francisco USBC Most recent
2025-08-01 — 2026-07-31
San Francisco USBC Past
2024-08-01 — 2025-07-31
San Francisco USBC Past
2023-08-01 — 2024-07-31
San Francisco USBC Past
2022-08-01 — 2023-07-31
San Francisco USBC Past
2021-08-01 — 2022-07-31
San Francisco USBC Past
2019-08-01 — 2020-07-31
San Francisco USBC Past
2018-08-01 — 2019-07-31
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
2013-08-01 — 2014-07-31
San Francisco USBC Past
2012-08-01 — 2013-07-31
San Francisco USBC Past
2011-08-01 — 2012-07-31
San Francisco USBC Past
2010-08-01 — 2011-07-31
San Francisco USBC Past
2009-08-01 — 2010-07-31
San Francisco USBC Past
2008-08-01 — 2009-07-31
San Francisco USBC Past
2007-08-01 — 2008-07-31
San Francisco USBC Past
2006-08-01 — 2007-07-31
San Francisco BA Past
2005-08-01 — 2006-07-31
San Francisco BA Past
2004-03-15 — 2005-07-31
San Francisco BA Past
2003-08-01 — 2004-07-31
San Francisco BA Past
2002-08-01 — 2003-07-31
San Francisco BA Past
2001-08-01 — 2002-07-31
Career milestones

Honors

0900 series
1800 series
1300 games
111 in a row

800 series

814 series · Serra Bowl
November 15 2007 · 289-278-247

300 games

Perfect game · Classic Bowling Center
October 20 2016 · 191-206-300

11 in a row

11 consecutive strikes · Classic Bowling Center
October 18 2012
Tournament history

Open Championships

Adjusted entering average 189 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.

2024/25218 → 189

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