One month later...<p>With an amazing line tally of 4,988, and the highest possible score of 9,999,999, American gamer Harry Hong was crowned “Tetris DX Marathon Champion” on 13 September 2007. The record was made at Funspot in New Hampshire, USA, the world’s largest arcade centre. - <a href="https://www.guinnessworldrecords.com/world-records/most-lines-cleared-in-tetris-dx" rel="nofollow">https://www.guinnessworldrecords.com/world-records/most-line...</a>