Redmond was born in Santa Barbara, California, United States and began playing Go at age 11. At age 14 he became an insei for the Nihon Ki-in. A student of Oeda Yusuke 9-dan, he became a professional 1-dan at age 18 and was promoted to 2-dan during the same year. Michael achieved 500 professional wins in August 2007 (500 wins, 331 losses and 2 jigo).
He was promoted to:
- 5-dan in 1985
- 8-dan in 1996
- 9-dan in 2000 (the first and only Western Go Professional to ever reach 9-dan)
Redmond made the semifinals of the Gosei in 2003, and reached the quarterfinals in 36th (2010) Tengen. He managed to the second round of the 17th Agon (2010, on going) where he beat Cho U in the first round (source: UnlimitedGo). He was one of 16 participants in the final tournament of the 50th Judan. In 1985, he won the 9th Ryuen Cup, and in 1992 he was runner up in the 17th ShinjinO.
Redmond is married to Xian-Xian Niu, a Chinese 5-dan professional. They have two daughters, Yumi and Emi. Redmond worked with the AGA and the The Ing Foundation to create the Redmond Cup as well as the Ing Redmond Tournament, a tournament for American players stronger than 5D and under 30.
Redmond has worked extensively as a commentator, in both English and Japanese. He was the official commentator of the game between Lee Sedol and AlphaGo in March 2016. He was also one of the four English-language commentators for the match between AlphaGo and Ke Jie in 2017, and its associated Team Go and Pair Go events.
In 2017, he became very active on the AGA's Youtube channel. He commentated / is commentating three series of review videos with Chris Garlock:
- Redmond's Reviews (in which he reviews both modern and historic human professional games, often his own)
- AGA Master Review Series (in which he reviews 22 of the 60 online games played between AlphaGo and human professionals in December 2016, which were all won by AlphaGo)
- AlphaGo vs AlphaGo (in which he reviews (so far the first 13 of) the 50 AlphaGo self-play games released by DeepMind in 2017)
In April 2020, Redmond started his own YouTube channel "Michael Redmond's Go TV".