BAT and Havant, champions and runners-up respectively this summer, are set to clash in the second round of next summer's Southern Electric ECB Premier League programme.
The pair meet in a 50-over match at BAT's Southern Gardens on May 11, with the all-day return game at Havant Park in mid-July.
Ironically, both matches between the leading pair were washed out this season.
BAT open their championship defence on May 4 against Liphook & Ripsley, one of the two clubs to beat them this summer.
Havant face a testing baptism against newly-promoted Portsmouth, this year's Division 2 champions, at Havant Park.
Sparsholt become the first club to tackle the Hampshire Academy team in Division 2, with newly-promoted Winchester KS with a fully-focussed Stuart Marks set to make a big impact at last, set to test their mettle against United Services at Burnaby Road on May 4.
The Division 3 programme starts one week later, on May 11, with Ventnor entertaining New Milton and Hartley Wintney making their SPL bow at home to Paultons.
Hampshire's Cheltenham & Gloucester Trophy tie against the Kent Cricket Board on May 29 next year is to be played at Folkestone's Cheriton Road ground.
It is the third time in four seasons Hampshire have been paired against the Kent Board XI.
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