[4][5] In October he had some success at the West End Tournament in New Zealand, finishing only two behind Walter Godfrey after the second round.

[9] In 1973, he started the golf architecture company Edward & Geoff Parslow and Associates (EGP) with his brother Ted.

He finished runner-up at New Zealand's 1975 Southland Charity Golf Classic, four shots behind Bill Brask.

[12] During the second round, three hours after opening the club shop, he went out to play at noon and shot a 63 (−9) to take a 5-shot lead over amateur Kevin Hartley.

"[2] Two years after his victory, Parslow again played excellently at the Victorian Open, this time held at Kingston Heath Golf Club.

Parslow played against Rodger Davis and defending Masters champion Gary Player.

[22] However, amidst the "wet, windy conditions" he fell well back in the final round, losing to compatriot Graham Marsh.

[23] In July the following year Parslow won the Australian Four-ball, a team event, with partner Paul Foley.

[24] During the ensuing decades Parslow focused mainly on his work as a club pro and golf course designer.

In 1992, he formed Edward & Geoff Parslow (M) Sdn Bhd to serve clients in Malaysia and ultimately moved offices to Kuala Lumpur.

[27] The company has also designed Kuala Lumpur Golf and Country Club, a course that has hosted the PGA Tour.

[28] In 1994, they formed the subsidiary Edward & Geoff Parslow (Fareast) Ltd. to serve clients in China.

In 1998, his first full season on the European Seniors Tour, he recorded one top-10 in 18 events and finished 45th on the Order of Merit.

Two years later, in 2000, he recorded his second top−10, a third place tie at the Belfry PGA Seniors Championship with Kurt Cox, one out of a playoff.