Number two was a brilliant strike from all of 20 metres out by Mason-Smith.
The third goal wasn't too bad either, Elliott being adjudged the scorer after a melee in front of the Olympic goal.
It came on the end of some impressive attacking play by Wairarapa United, featuring a couple of the latest recruits to their squad, Tam DiMario and Godwin Addai.
The brittleness of the Olympic defence suggested the obvious tactic for Wairarapa United in the second half was to place the emphasis on attack with the idea of building an unassailable advantage on the scoreboard.
As it happened, however, they seemed content to allow the visitors to control possession for long periods and whether it was by design or not they paid a heavy price for it, Wellington Olympic scoring two goals to level the score, and going mighty close to another couple of others as well.
In the absence of player-coach Paul Ifill, who was sidelined with injury, the onus fell on Mason-Smith to provide most of the thrust up front and he responded splendidly to that challenge.
It was just a pity that he was not given more opportunities to demonstrate his skills in the second half, and the same could be said of DiMario who constantly bemused and confused the Olympic defence with the cleverness of his ball skills in the first spell but had precious little chance to do the same in the second.
Youngster Elliott also made a favourable impression with his willingness to do the hard yards on attack and defence and while Cory Chettleburgh blotted his copybook by being red carded in the closing minutes his work rate was probably without equal in this particular game.
In other Central League games played over the weekend, the previously unbeaten Stop Out were upset 2-1 by Miramar Rangers, Western Suburbs hammered Wellington United 6-1, Napier City Rovers beat Petone 4-0, and Palmerston North Marist drew 3-all with Lower Hutt City.
