The 23-year-old is the only Aggie who featured in their last win over the Waratahs in May, 2015, but said the record hasn't put more pressure on the team to break the duck in the grand final rematch.

"I wouldn't say I put more pressure on myself, it's more an urge to finally overcome this little speed bump," he said.

"We've definitely got the belief we can do it.

"We definitely want the week off and avoid playing Griffith if they win (the minor semi over Albury). But it's more to try and get the week off to rest bodies, and we're going in confident."

Pennington said the return of prop Duncan Woods and no.8 Ben Brooke has been a major boost in the back end of the season.

He said Ag College has been thwarted by sluggish finishes against the competition heavyweights in recent clashes, but not have the maturity to finish games.

"From memory I think I'm the only one in the starting 15 who has beaten the Waratahs," he said.

"We've been competitive for up to 60 minutes, then being the team they are they've always been able to finish strong.

"We've suffered a few injuries this year and most of the time against them we haven't had five or six first graders available.

"We've stuck it to them, but they've had more experience than us and more level heads.

"The last couple of years though we've got better at finishing games, we're more mature now which is a big positive."

Pennington is confident they can pull off an upset if their forwards at least holds their own against the Waratahs pack, regarded the best in the competition.

"(Centre) Lochie Ramm is starting to get some confidence back and if our forwards do their thing it'll give us outside backs the chance to play," he said.

"They've got a very good forward pack and a very good scrum. The key to beating them is to limit their opportunities at scrum time."

The winner will become the first team to qualify for the grand final in a fortnight's time.

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