The most concrete blocks broken with the hands in 30 seconds is 655 by Ali Bahçetepe (Turkey) in Datça Cumhuriyet Meydani, Turkey, on 11 November 2009.
Bahçetepe also broke the world record for most concrete blocks broken by hand in one minute on the same day, smashing 1,077 before completing this successful attempt.
Please note: Comments below may relate to previous holders of this record.