In Canada he played for James Bay and UBCOB Ravens (British Columbia Rugby Union).

[2] Hadley captained his national side five times in 1992–3, including on 17 October 1992 at Wembley Stadium, a 26–13 loss to England.

On that day Hadley eclipsed his English counterparts Wade Dooley and Martin Bayfield, and rallied an understrength Canadian side to a respectable outcome.

[citation needed] That highly regarded 1991 Canadian team made a big impact defeating Fiji and Romania and giving both France and New Zealand difficult games.

While working in London and playing for Wasps, he gained perhaps his greatest notoriety for roughing up two hooligans on the London Underground, an act which not only earned him praiseworthy column inches in the British broadsheets and tabloids, but even gained him a mention in the House of Commons by then Prime Minister John Major.