But Fareham & Crofton blew their outside chances of finishing second after losing by seven wickets to St Cross Symondians III - Sway benefitting accordingly. Subject to accreditation, they will go up with Havant.
The champions designate posted a powerful 250-5 at Cockets Mead, where Andrew Galliers (69) hit a half-century and left-arm spinner Graham Burns (5-9) enjoyed his second cheap five-wicket haul of a shortened summer as EMW plunged to 77 all out.
Anything less than a maximum-point haul from their visit to the Royal Green Jackets Ground would effectively deny Fareham the second promotion place ahead of Sway.
Their innings was a bit of a curate's egg. A promising 106-1 (half-centuries from Tom Kent and Virat Sahu) became 136-6, when skipper James Headen smacked a quick-fire 65, including six maximums. Fareham took tea at 227-8.
For most of the season that would have been a winning total against St Cross IIIs, but the Winchester club enjoyed a rare full availability across the board and fifty-plus scores from James Burridge, Raj Niak and Paul Hawkins swept them to a seven-wicket win.
That left Fareham fifth behind Parley and Bournemouth II, who both ended their summers on a winning note.
Tom Wallis (89) top scored as Portsmouth posted 185 against Compton & Chandler's Ford, whose three-wicket win owed much to Ethan Sharpe (62) and Andy Gorty (42 not out).
Oli Southon's unbeaten 30 was hugely significant as Burridge saved their necks with a four-wicket win at Old Basing (115), where the hosts batsmen found Sampath Prathapisinghe and Srujith Wickramasinge as hard to face as spell !
Lymington II said their CD1 farewells with a five-wicket defeat by Winton, while Longparish pair Chris Clarke (5-15) and teen Zach Allen (3-13) sent relegated Andover II tumbling to 106 all out and a 92-run defeat. Parish made 198-7.