Playing Strength and Gender
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- There are over 100 male 9 dan players in Japan as of August 2010. There are additional male 9 dan players in China and Korea.
- There are four female 9 dan players, Rui Naiwei, Feng Yun, Park Jieun, and Cho Hye-yeon as of December 2010 in China, Japan and Korea.
- One open professional title has been won by a female player (Kuksu by Rui Naiwei in 2000) as of August 2010.
- There are fewer female players than male players.
- If there is no difference in playing strength between male and female players, the average ELO value of female players should not differ from the average ELO value of male players.
- If there is no difference in playing strength between male and female players, the ratios "open titles won by male players/open titles won by female players" in a given timeframe should be proportional to the ratio of "number of participating male players/number of participating female players" in said timeframe, assuming there were no other relevant factors (such as age, for example).
- Professional results, European Go Database and AGA Go Database are available for further inquiry.
The following graph was constructed according to data on 783 professional players (131 of which women). The average ELO is higher for male professionals than for female professionals (M_male=3095, SD_male=178, SE_male=6.96 vs. M_female=2916, SD_female=144, SE_female=12.58).
As of Nov 27th, 2015, the highest rated female Go professional is Yu Zhiying. According to the goratings.org game record consisting of 204 games where her opponent's sex could be readily identified, her winrate against other female professionals is 73% (95-35) whereas her winrate against male professionals is 42% (31-43).
- Comparing Extreme Members is a Low-Power Method of Comparing Groups: An Example Using Sex Differences in Chess Performance Chabris, C.F., & Glickman, M.E (2010)
- Why are (the best) women so good at chess? Participation rates and gender differences in intellectual domains Bilalic, M., Smallbone, K., McLeod, P., & Gobet, F. (2009)
- Sex Differences in Intellectual Performance Chabris, C.F., & Glickman, M.E (2006)
- Participation rates and maximal performance: A log-linear explanation for group differences, such as Russian and male dominance in chess Charness, N. & Gerchak, Y. (1996)
 Source: www.goratings.org on Oct. 30, 2015.