They are one of the Britain's most successful teams and are five-time BritBowl winners as well as European Champions following their EFAF Cup triumph in 2011.

They won the British national championship, BritBowl XXI, in 2007, defeating Coventry Cassidy Jets 14–6.

They returned to defend the title in 2008, missing out to a field goal with 4 seconds left to play losing 32–33 against Coventry Cassidy Jets in a repeat of the 2007 match.

The 2011 double triumph of EFAF Cup and BritBowl was the most successful season for a British American Football team since the achievements of the London Olympians in the early nineties.

They won their group matches comfortably, beating the Amsterdam Crusaders again, this time at home and then defeated the Valencia Firebats in Spain.

In front of a crowd of nearly 2,000 people the London Blitz won the EFAF Cup by beating the Serbian Champions, the Kragujevac Wild Boars 29–7.

In the re-aligned domestic BAFANL Premiership South league they lost twice during the season to the London Warriors.

However, they reached their 7th consecutive BritBowl at Don Valley Stadium in Sheffield where they faced the London Warriors again and this time the Blitz finished as winners when it mattered.

The final score was 37–21 making the London Blitz national champions for the fourth consecutive year.