The U's boss masterminded four league wins from four, netting 10 goals without conceding, as the U's went top of the division.
Hastings thumped East Grinstead Town 5-0 at home before picking up vital wins against promotion-chasing Herne Bay and Ramsgate.
The U's rounded off the year with a 1-0 victory at Sussex neighbours Whitehawk.
Hastings began 2022 with a win and a draw against Lancing and VCD Athletic respectively.
Elphick's side welcome Faversham Town to The Pilot Field this Saturday.