According to Official Guinness Records,
The longest wave surfed by a dog (open water) is 107.2 meters (351.7 ft), and was achieved by Abbie Girl (USA) at Ocean Beach Dog Beach, in San Diego, California, USA, on 18 October 2011. Read more: Meet Abbie Girl –the record-breaking surfing dog
For a complete list of 2011 records, please visit 2011 Guinness Records in United States.