According to Official Guinness Records,
The most dominoes set up and toppled in one minute is 75 and was achieved by Gemma Hansen (UK) at Butlins, Minehead, UK, on 7 August 2010.
Adjudicated by Leanne Punchard for GWR Live! at Butlins.
For a complete list of 2010 records, please visit 2010 Guinness Records in United Kingdom.