Thistle were guilty of giving the ball away and trying to be too clever when the simple pass was on.
The biggest culprit was the match-winner Araya, who caused the Port Hill defence problems with his skill on the ball throughout the game. All too often, having turned his man inside out, he failed to deliver the telling pass.
However, as the match went on Thistle took control. Defenders Max Mita, Liam Ryan and Chris Spurr were quick to shut down an attacks.
On the rare occasions when Port Hill threatened, Mita’s positional sense proved vital.
With Land, Max Logan, David Ure and Olly Tilley dominating the midfield, Thistle looked the team most likely to score.
They should have scored in the 50th minute after good one-two passing between Logan and Tilley opened the defence and left Araya with a one-on-one with goalkeeper Stuart McVeigh, only for Araya to drag his shot wide of the post.
It could have proved costly as Port Hill launched a counter-attack which forced Thistle keeper Mark Baple to come off his line quickly to avert the danger.
Then came the moment Thistle fans had been waiting for. Left-back Daniel Venema started the move with a pass to Ure in midfield, Ure looked up and saw Araya in space and his first-time pass found Araya, with one man to beat.
Araya once again turned his man inside out and he struck the ball wide of the keeper and into the botton left-hand corner of the net. It was a cracking goal and one fit to win the game.
“We really wanted this, it was a brilliant win,” said skipper and midfielder Nicky Land, who ran himself into the ground.
“It was a gutsy performance after a pretty even first half but I felt we deserved to win the way we played in the second half.”