His 758-run tally for the season makes the former Poole Grammar academic favourite to win the County 1 batting prize.
Parley went on to bowl Ryde out for 203 and secure a comfortable 57-run win.
Promotion to the Southern Premier League’s third division isn’t automatic for either champions Hythe & Dibden or Parley, whose respective grounds and youth set ups have to meet the SPL’s accreditation requirements.
The pair both face an anxious autumn wait as a decision is unlikely to be made until November.
Hursley Park bungled their chances of finishing third when lowly Alton II beat them by 12 runs at the Jubilee Ground.
Fareham & Crofton nipped into their place by beating relegated Rowledge (188-9) by seven wickets – Steve Berryman (74) and Tom Kent (44) sharing a century stand.
Andover’s four-wicket win at the Albany means that Bishops Waltham are relegated alongside Rowledge and United Services.
Runaway CD2 winners Bedhampton, Sway and Old Basing will replace them.
County Division 3 winners are Redlynch & Hale and in CD3 South Winton, who beat Emsworth (136) by six wickets in the final day shoot-out for the crown.