Match Report for Masanori Ichikawa (Asia)
Masanori “Othello” Ichikawa was born in Tokyo in 1973, and started playing backgammon in 1997. It was about the time that online backgammon servers and stronger software appeared on the scene. As one of the younger players, he naturally gravitated to those tools, and still uses them today to study the game. He won his first national title, "Meijin", in 2004, and has since won two more titles, including the "Japan Open" in 2019. Masanori is a member of Japan's national team which won the WBIF online team tournament in 2020. Each year, he presents a series of backgammon problems at the Japan Open. This “Othello Quiz” is later uploaded on the internet, and is widely considered to be one of the best quiz series available. The Otthello quizes, dating back 2000, can be found at https://backgammon.or.jp/?page_id=3479
Summary of Matches Rating 1,519.08 Experience 305 Matches played 15 Matches won 7 (46.7%) Number of distinct opponents 8 Number of clubs played at 1 Earliest match recorded 2019-07-21 Latest match so far 2021-05-23 Peak rating 1,519.08 Peak rating (>400 exp.) n/a Average opponent rating 1,519.00
► Charts
Match locations Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,519.00
Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,519.00
win/lose Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,519.00
Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,519.00
Asia (15)
Match lengths 11-point:
Matches: 5 (2 won, 3 lost)
Experience: 55 (22 points won, 33 lost)
Win rate: 40.00%
Average opponent rating: 1,453.81
11-point:
Matches: 5 (2 won, 3 lost)
Experience: 55 (22 points won, 33 lost)
Win rate: 40.00%
Average opponent rating: 1,453.81
25-point:
Matches: 10 (5 won, 5 lost)
Experience: 250 (125 points won, 125 lost)
Win rate: 50.00%
Average opponent rating: 1,551.60
25-point:
Matches: 10 (5 won, 5 lost)
Experience: 250 (125 points won, 125 lost)
Win rate: 50.00%
Average opponent rating: 1,551.60
win/lose 11-point:
Matches: 5 (2 won, 3 lost)
Experience: 55 (22 points won, 33 lost)
Win rate: 40.00%
Average opponent rating: 1,453.81
11-point:
Matches: 5 (2 won, 3 lost)
Experience: 55 (22 points won, 33 lost)
Win rate: 40.00%
Average opponent rating: 1,453.81
11-point (5)
25-point:
Matches: 10 (5 won, 5 lost)
Experience: 250 (125 points won, 125 lost)
Win rate: 50.00%
Average opponent rating: 1,551.60
25-point:
Matches: 10 (5 won, 5 lost)
Experience: 250 (125 points won, 125 lost)
Win rate: 50.00%
Average opponent rating: 1,551.60
25-point (10)
Matches by opponent rating 0 2 4 6 8 10 12 14 16 18 20 <1000 1050 1000- 1100 1050- 1150 1100- 1200 1150- 1250 1200- 1300 1250- 1350 1300- 1400 1350- 1350-1400:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00% 1350-1400:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00% 1450 1400- 1500 1450- 1450-1500:
Matches: 4 (2 won, 2 lost)
Experience: 72 (36 points won, 36 lost)
Win rate: 50.00% 1450-1500:
Matches: 4 (2 won, 2 lost)
Experience: 72 (36 points won, 36 lost)
Win rate: 50.00% 1550 1500- 1500-1550:
Matches: 5 (3 won, 2 lost)
Experience: 111 (61 points won, 50 lost)
Win rate: 60.00% 1500-1550:
Matches: 5 (3 won, 2 lost)
Experience: 111 (61 points won, 50 lost)
Win rate: 60.00% 1600 1550- 1550-1600:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00% 1550-1600:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00% 1650 1600- 1600-1650:
Matches: 3 (2 won, 1 lost)
Experience: 75 (50 points won, 25 lost)
Win rate: 66.67% 1600-1650:
Matches: 3 (2 won, 1 lost)
Experience: 75 (50 points won, 25 lost)
Win rate: 66.67% 1700 1650- 1750 1700- 1800 1750- 1850 1800- 1900 1850- 1900+ ←1,519.08
When matches were played January:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,529.57
January:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,529.57
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.05
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.05
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.18
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.18
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.28
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.28
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.46
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.46
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.24
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.24
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.70
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.70
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.19
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.19
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.80
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.80
January:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,529.57
January:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,529.57
Jan
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.05
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.05
Feb
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.18
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.18
Mar
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.28
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.28
Apr
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.46
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.46
May
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.24
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.24
Jul
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.70
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.70
Sep
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.19
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.19
Oct
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.80
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.80
Dec
0 2 4 6 8 10 12 14 16 18 20 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2019:
Matches: 7 (3 won, 4 lost)
Experience: 105 (47 points won, 58 lost)
Win rate: 42.86%
Average opponent rating: 1,476.67 2019:
Matches: 7 (3 won, 4 lost)
Experience: 105 (47 points won, 58 lost)
Win rate: 42.86%
Average opponent rating: 1,476.67 2020 2020:
Matches: 3 (1 won, 2 lost)
Experience: 75 (25 points won, 50 lost)
Win rate: 33.33%
Average opponent rating: 1,527.23 2020:
Matches: 3 (1 won, 2 lost)
Experience: 75 (25 points won, 50 lost)
Win rate: 33.33%
Average opponent rating: 1,527.23 2021 2021:
Matches: 5 (3 won, 2 lost)
Experience: 125 (75 points won, 50 lost)
Win rate: 60.00%
Average opponent rating: 1,573.33 2021:
Matches: 5 (3 won, 2 lost)
Experience: 125 (75 points won, 50 lost)
Win rate: 60.00%
Average opponent rating: 1,573.33 2022 2023 ► Match history
Recorded Venue Opponent Score PR BMAB EP New rating Exp.
1,500.00 0
▼ Season 2019
▼ Season 2020
▼ Season 2021