Con Power [es], and James Kernan – that won the Aga Khan Cup three years in a row (1977 to 79).

However the gold medal was later stripped when O'Connor's horse - Waterford Crystal - tested positive for a banned substance.

[4] After moving to Canada in the early 2000s (decade), Macken became based at New Kells Farm in Langley, British Columbia and participated on the North American show jumping circuit.

[2] The Irish team finished 2nd behind Great Britain, but later lost this placing after Macken was charged with a technical violation regarding doping tests by the FEI.

[6][7] In 2010, 61-year-old Macken rode the Argentinian Warmblood Macuco to win one of the opening classes during the CSI "North American" competition at Spruce Meadows.