Dolphins v Roosters: where the value sits in Friday night's finals clash

Friday night finals rugby league at Suncorp Stadium — third-ranked Dolphins hosting fourth-placed Sydney Roosters in a knockout final, 7:50 pm AEST. The market has spoken over the past 24 hours: Dolphins have drifted from $1.68 to $1.71, while the Roosters have firmed from $2.20 into $2.04. That move tells a story, and we're backing it.

The Dolphins arrive on a five-game winning streak, sitting third on the ladder with 17 wins from 24 games and a points differential of plus-156. The Roosters are fourth with 16 wins and a plus-118 differential, but their recent form reads patchy — two wins and three losses across their last five. When the market shortens an away side into a finals knockout, there's usually substance behind it. We think the Roosters at the current price represent the bold play.

Who will win?

The Dolphins have won five straight, most recently a 26–16 victory over the New Zealand Warriors away on 12 September. That run includes wins by margins of 10, 4, 14, 18 and 22 points across mixed venues — an average winning margin of 13.6 points. Across those five games they've averaged 26.4 points for and conceded just 12.8 against. Impressive numbers, but context matters.

The Roosters are coming off a 46–10 demolition of Cronulla Sharks at home on 19 September — a 36-point win that reversed a three-game losing streak. Before that win, they'd been hammered 12–19 by Penrith and twice recorded 20–50 losses to South Sydney (the pack lists that South Sydney defeat twice in their last five). Over their last five overall, the Roosters have averaged 22 points for and leaked 31 against, with an average loss margin of 20.3 points. But that one dominant win lifted their average winning margin to 36 points.

Head-to-head history is short but decisive: the Dolphins won both 2026 meetings — 48–10 in June and 26–12 in August. That August clash was at the Roosters' home ground, a 14-point Dolphins win. The combined average across those two games is 48 points. The Roosters have been on the wrong end of both, but the market's move suggests the August result doesn't reflect current form.

The Dolphins sit at $1.71 after drifting, while the Roosters have firmed into $2.04. That firming tells us something: punters are backing the Roosters despite the head-to-head record and the Dolphins' winning streak. We agree. Finals are a different beast, and the Roosters' 36-point demolition job last start — combined with the market's confidence — points to value on the visitors. Our nrl predictions lean towards the Roosters to cause the upset.

The line — can the Roosters cover the 2.5-point start?

The Dolphins are giving 2.5 points at $1.90, with the Roosters getting that start at the same price. Given the Dolphins' recent form — winning their last five by an average margin of 13.6 points — you'd expect them to cover a slim 2.5-point line comfortably. But the Roosters' last start was a 36-point blitz, and their season average winning margin sits at 17.6 points when they do get up.

Over the Dolphins' last five, their average loss margin is 18.3 points (from earlier season defeats), while the Roosters' average loss margin is 20.3 points. The Dolphins have been more consistent, but the Roosters' ceiling is higher when they click. With a 2.5-point buffer, the Roosters are the play. If they bring the intensity from that Cronulla performance, they'll either win outright or keep it tight enough to bank the line.

The risks

Make no mistake — tipping against a team on a five-game winning streak at home in a knockout final is bold, and the risks are real. The Dolphins have won their last five by margins ranging from 4 to 22 points, and they've beaten the Roosters twice this season by a combined 50 points. Their home record this year is 8 wins from 12 games, and they've been defensively stingy across their recent run, conceding just 12.8 points per game over their last five.

The Roosters' form before their last-start win was ugly: three straight losses, including two 30-point drubbings by South Sydney. Their away record is 8 wins from 12, respectable but not dominant. If the Roosters who showed up against Penrith and South Sydney turn up on Friday night, the Dolphins will run away with it. But the market has firmed the Roosters for a reason, and we're backing that judgement.