Simpson Jnr won with a total of 283, and Jackson Relph put in a strong performance to finish on 286 as the runner up.
The winner of the Richard Wimpress nett trophy was Mike Reid Snr with a three-round total of 196 and in second place was Garrie Simpson Snr on 198.
The ladies championship, played over three rounds resulted in a three-way tie between lady captain Margaret Wood, Ella Skilbeck and Sandra Boyes all on 258.
A further 18-hole play-off will decide the winner.
Janet Smith won the handicap trophy with two solid rounds of 66 nett.
Previously, Niall McGreevy returned a fine score of 73-11-62 to win the June Medal round three, whilst Kevin Bell returned 76-14-62. to win the June Medal round four.
The winner of the Round Table trophy was Robyn Mavir with 90-25 -65 on a countback from Joan Gould (88-23-65). Joanna Hadfield had a great round of 81-15-66 to win the Fawcett trophy from Carole Sykes with 92-25-67.
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