There was little between the two Wagga rivals, but it was the experienced heads who prevailed to take a 27-19 victory at Conolly Rugby Complex on Saturday.

In the end a Tom Hobbs penalty goal gave Waratahs the breathing space they needed to claim back-to-back titles.

Captain Morgan Jones was relieved to hold on.

"It was the hardest game of the year easily and Aggies had superior fitness on us," Jones said.

"We had nothing left in the tank with 10 minutes to go so it was nice to be more than a converted try in front.

"Psychologically it might have given us some small advantage but it was a really tough game and just such a relief we were able to hold on to take the win."

Waratahs started strongly as Jones scored in the third minute of the game.

However some poor discipline helped Ag College's nerves in their first grand final appearance.

With Anthony Hill yellow carded, Will O'Leary took advatange of the extra man to score the first of three tries.

Waratahs hit back five minutes later as Hobbs scored but the two sides went into the second half locked at 12-all as O'Leary busted out of a tackle for his second.

Waratahs came out firing in the second half and it proved to be the distance.

Richie Lamont went 45 metres to score three minutes into the second half before Hobbs went over for his second to hand Waratahs a 24-14 lead.

Ag College kept fighting and got within a try with 18 minutes remaining as O'Leary profited from a strong run from Ethan Brien.

However Hobbs' penalty goal took the win out of their sails four minutes later.

Jones thought it was a crucial period for the minor premiers.

"We talked at half-time about trying to cut down the penalties and get some more possession," he said.

"Fortunately we did that in the second half with the two quick tries. We really wanted to put the sword in there and make it unreachable but to Aggies' credit they hit back and from then on it was just a scrap fight to get the points."

A strong running game helped front rower Harry Cook to a Warwick Tout Memorial Medal after being judged best in the grand final.

The 28-year-old was thrilled to take out the nod.

"It feels good and it is the first time I've won best and fairest in a grand final but it could have gone to anyone on the field," Cook said.

"I'm pretty happy with it."

He was also thrilled to help the club to back-to-back successes.

"It is a great feeling and it shows the depth we've got in the club that everyone wants to hang around year after year and keep playing for each other," Cook said.

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