Loan striker Rekeil Pyke scored his sixth goal in three friendlies as Vale drew their match against Buxton.
Michael Brown included new signing Lawrie Wilson in the starting line-up but Vale trailed at the interval after Hardy swept the home side into the lead on 37 minutes.
Vale equalised on 54 minutes when Pyke scored from a Vale corner. The Valiants then made a host of changes in the second period including the introduction of trialists Billy Whitehouse and Michael Tonge.
However, Vale could not get the crucial second goal as it finished all-square on Saturday afternoon.
Vale: Lainton (Boot), Eardley (Yates), Kay (Tonge), De Freitas (c) (Calveley), Gunning (Gibbons, Dennis), Wilson (Whitehouse), Smith (Davis), Pugh (Reeves), Pope (Walford), Pyke, Montano (Kelly).