Match Report for Masanori Ichikawa
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 1,519.06 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 1,519.06 Peak rating (>400 exp.) n/a Average opponent rating 1,518.97
► Charts
Match locations Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,518.97
Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,518.97
win/lose Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,518.97
Asia:
Matches: 15 (7 won, 8 lost)
Experience: 305 (147 points won, 158 lost)
Win rate: 46.67%
Average opponent rating: 1,518.97
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: 1,453.80
11-point:
Matches: 5 (2 won, 3 lost)
Experience: 55 (22 points won, 33 lost)
Win rate: 40.00%
Average opponent rating: 1,453.80
25-point:
Matches: 10 (5 won, 5 lost)
Experience: 250 (125 points won, 125 lost)
Win rate: 50.00%
Average opponent rating: 1,551.55
25-point:
Matches: 10 (5 won, 5 lost)
Experience: 250 (125 points won, 125 lost)
Win rate: 50.00%
Average opponent rating: 1,551.55
win/lose 11-point:
Matches: 5 (2 won, 3 lost)
Experience: 55 (22 points won, 33 lost)
Win rate: 40.00%
Average opponent rating: 1,453.80
11-point:
Matches: 5 (2 won, 3 lost)
Experience: 55 (22 points won, 33 lost)
Win rate: 40.00%
Average opponent rating: 1,453.80
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: 1,551.55
25-point:
Matches: 10 (5 won, 5 lost)
Experience: 250 (125 points won, 125 lost)
Win rate: 50.00%
Average opponent rating: 1,551.55
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+ ←1,519.06
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: 1,529.54
January:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,529.54
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.04
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.04
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.14
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.14
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.26
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.26
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.41
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.41
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.23
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.23
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.69
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.69
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.18
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.18
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.72
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.72
January:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,529.54
January:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,529.54
Jan
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.04
February:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,526.04
Feb
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.14
March:
Matches: 1 (0 won, 1 lost)
Experience: 25 (0 points won, 25 lost)
Win rate: 0.00%
Average opponent rating: 1,647.14
Mar
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.26
April:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,536.26
Apr
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.41
May:
Matches: 2 (2 won, 0 lost)
Experience: 50 (50 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,573.41
May
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.23
July:
Matches: 2 (0 won, 2 lost)
Experience: 22 (0 points won, 22 lost)
Win rate: 0.00%
Average opponent rating: 1,391.23
Jul
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.69
September:
Matches: 2 (1 won, 1 lost)
Experience: 22 (11 points won, 11 lost)
Win rate: 50.00%
Average opponent rating: 1,500.69
Sep
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.18
October:
Matches: 1 (1 won, 0 lost)
Experience: 11 (11 points won, 0 lost)
Win rate: 100.00%
Average opponent rating: 1,485.18
Oct
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.72
December:
Matches: 2 (1 won, 1 lost)
Experience: 50 (25 points won, 25 lost)
Win rate: 50.00%
Average opponent rating: 1,533.72
Dec
0 2 4 6 8 10 12 14 16 18 20 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: 1,476.64 2019:
Matches: 7 (3 won, 4 lost)
Experience: 105 (47 points won, 58 lost)
Win rate: 42.86%
Average opponent rating: 1,476.64 2020 2020:
Matches: 3 (1 won, 2 lost)
Experience: 75 (25 points won, 50 lost)
Win rate: 33.33%
Average opponent rating: 1,527.20 2020:
Matches: 3 (1 won, 2 lost)
Experience: 75 (25 points won, 50 lost)
Win rate: 33.33%
Average opponent rating: 1,527.20 2021 2021:
Matches: 5 (3 won, 2 lost)
Experience: 125 (75 points won, 50 lost)
Win rate: 60.00%
Average opponent rating: 1,573.29 2021:
Matches: 5 (3 won, 2 lost)
Experience: 125 (75 points won, 50 lost)
Win rate: 60.00%
Average opponent rating: 1,573.29 2022 2023 ► Match history
Recorded Venue Opponent Score PR BMAB EP New rating Exp.
1,500.00 0
▼ Season 2019
▼ Season 2020
▼ Season 2021