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Dolphins vs Sydney Roosters NRL Betting Tips - Dolphins to edge Round 15 clash

ryan-tucker
Ryan Tucker
Editor
Last updated: Thu 11 Jun 2026 13:26
The Dolphins face the Sydney Roosters in a tightly contested NRL match with both teams missing key players due to State of Origin. Dolphins, riding a five-game winning streak and boasting a strong defense, are tipped for a narrow 1-12 margin victory, with the total points expected to stay under 50.5. Jamayne Isaako, in great try-scoring form, is a recommended pick for anytime or first tryscorer bets. The Roosters recently snapped a skid, but the Dolphins' improved defense could edge them ahead.
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Ryan Tucker 11 Jun 2026
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  • Both teams impacted by State of Origin absences
  • Tight, low-scoring game predicted
  • Dolphins tipped for 1-12 point win with game total expected under 50.5 points
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dolphins roosters
Dolphins to edge the Sydney Roosters (Getty Images)

Dolphins vs Sydney Roosters Verdict


Both teams are affected by State of Origin absentees, making this a hard one to predicted. The safe play is the tight Dolphins defence seeing them to a narrow victory and for the game to stay under 50.5 points. 

  • The Dolphins have allowed just 13.6 pts per game over their last 5 matches with the Roosters allowing 14.4 pts per game to their opponents in the same span.
  • The Average Game Total this season sits at 48 pts but over the last 3 rounds has dropped to 44 pts.
  • Jamayne Isaako has scored in 4 of his last 5 games for 6 tries total in that span.
  • Jamayne Isaako has scored in 3 of his 5 career games as a Dolphin vs the Roosters.

Head to Head 


The Dolphins won their first ever game in the NRL against the Roosters back in 2023 but since then have been on the losing end, dropping four straight against Sydney.

Last year the Roosters took both games with margins of 10 points and 52 points. Four of the five matchups have gone Over the Game Total and the Roosters hold a 2-1 advantage at Suncorp.

Dolphins Form Analysis - Five Straight For Phins


The Dolphins have won five in a row heading into this clash with the Roosters. 

Their first game back from the bye last weekend was a 40-14 drubbing of the North QLD Cowboys which saw them score 28+ points in five straight and for the seventh time in 12 games this season.

What has been the most important for this team though is their much improved defence. Last season they allowed 24.8 pts per game to their opponents, this year the number is down to 21 per game and just 13.6 pts per game through this five-game winning streak.

Their +77 differential is the fourth best in the league and they currently sit fifth on the ladder but have had two of their three byes already.

Sydney Roosters Form Analysis - Skid Snapped


The Roosters snapped a two-game skid either side of their Rd 12 bye with a dramatic 26-0 victory over Canberra last weekend in the Nation’s Capital. 

In Sydney’s losses this season, ball security and discipline have been the problem, but against the Raiders they still completed at 80% which gave them the ascendancy.

Defensively they were also outstanding, holding Canberra from scoring despite 34 tackles Inside 20m and have now held their opponent to 18 points or less in five of their last six games.

Verdict

Take the Dolphins to win with a 1-12 margin and the Game Total to stay Under 50.5 with Jamayne Isaako the best option as Anytime and First Tryscorer.

Best Bet1: Dolphins 1-12 Winning Margin @21/10 at bet365 - 2 Units
Best Bet2: Under 50.5 Game Total @9/10 at dabble - 3 Units
Best Bet3: Jamayne Isaako Anytime Tryscorer @7/8 at Star Sports - 2 Units
Best Bet4: Jamayne Isaako First Tryscorer @15/2 at Ken Howells - 1 Unit
Dolphins 1-12
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ryan-tucker
Ryan Tucker

Sports Editor & Betting Analyst • Australian Sports Specialist & Betting Model Expert

Ryan's love for sport traverses many countries and cultures. From humble beginnings in Western Sydney growing up playing and refereeing Rugby League to running European wide Australian Rules Football tournaments there is a mountain of experience in between. 


Multiple trips to North America has also deepened the love for the four major US sports and a continuing dream to catch as much live action as possible.

Stats and data analysis has now outgrown the hobby tag and the countless models and simulations are now being put to good use writing previews and predictions for NRL.

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