[1] Of its origins, Sean Maloney stated: The competition and award was not given out on a regular annual basis, and there have been some gaps in the timeline, especially recently.
After a long gap, the Royal Canadian Armour Corps School reintroduced the competition (now called the Worthington Challenge) in 2012 and it is now for regular force units.
[3] Although the origin for this event was a tank gunnery concentration, the scope was widened to include the 25mm platform and allow non-armoured units to participate.
[4] The Royal Canadian Armour Corps School (RCACS) successfully concluded its 3rd annual Exercise Worthington Challenge in Gagetown, N.B.
The competitors were: "A tough Danish team, fresh off a strong showing at this year's Nordic Challenge competed directly while other nations such as Brazil, Portugal and Chile observed the event.