Date of Birth: 
Place of Birth: Hyōgo Prefecture, Japan
About Masaki Iwai
- Masaki Iwai (born July 31, 1985) is a Japanese curler. After winning the 2018 Japanese curling championship, Iwai skipped the Japanese national team at the 2018 World Men's Curling Championship.
- Iwai threw third stones on the team which also consisted of fourth Go Aoki, second Ruyotaro Shukuya and lead Yutaka Aoyama.
- Iwai led the team to a 3-9 round robin record, an 11th-place finish. Iwai began the 2018-19 curling season by winning the Hokkaido Bank Curling Classic, his first World Curling Tour event win.
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