The 1971 Chatham Cup was the 44th annual nationwide knockout football competition in New Zealand.
In the final, Western Suburbs made up for their defeat the previous year by seeing of neighbours Wellington City, who had been formed as a national league side through a merger of Miramar Rangers and Hungaria.
In a howling Wellington southerly wind, Dave Wallace and Allan Jeffrey scored for Suburbs while Paul Cameron and Julius Beck countered for City.
With the scores tied, the teams went to extra time, where the game remained locked at 2-2 until the last moments.
With the final kick of the game Barry Humphreys sent a long ball forward which caught the breeze and bounced over the City keeper into his net.