The first player to score a double century in T20 cricket was Sagar Kulkarni, who achieved this feat in 2008 while playing for Marina Club, scoring 219 runs off just 56 balls
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However, in professional-level cricket, Rahkeem Cornwall of the West Indies became the first known player to score a T20 double century in an official match. He smashed 205 off 77 balls* for Atlanta Fire in the Atlanta Open 2022, hitting 22 sixes and 17 fours