Opener Nathan Parkin (55 off 83) and captain Daniel Murfet (57 off 99) laid the foundations for the win with an 83-run partnership

"Nathan's batting really well at the moment ... he's looked promising every game and that's a credit to him working really hard during the week in preparation and it shows on the weekend and he played really well again," Murfet said.

Chathura Athukorala (20 off 27) was solid while Deepak Singh (23 off 19) added some late-order boundaries as the Shamrocks closed their innings at 9-218 providing a substantial chase for Riverside.

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For the second time in as many weeks, Riverside were rattled in the opening over as Joel Lloyd (2-30) secured the key wickets of Tom Garwood and Matthew Kerrison.

Singh (3-31) and Michael Lukic (4-23) triggered another collapse as they removed Jack Manix-Geeves, Patrick Mackrell and Ramesh Sundra in a spell of 3-2 to have the Blues at 5-29.

"[Lloyd] is coming along really nicely, last year he took his bowling to another level as earned the chance with the new ball and he's put that in again this year, probably searching for some consistency with the ball but in saying that what he does bowl is high-quality," Murfet said.

"Having a decent score on the board does allow you to take over control and it certainly helps set effective field settings we were able to go a little bit more defensive with the field through the middle and put it on them to play some really good shots."

Batter Zac Towns (57 off 107) and wicketkeeper Peter New (59 off 92) rallied in a struggling cause as they posted a century stand as they proved in-sync at manoeuvring the field.

A critical run-out affected by Matthew Allen and Murfet ended the pair's rearguard stand before the Blues proceeded to lose wickets in regular intervals to be all out for 184 to hand the Shamrocks a 34-run win.

"We just knew we were in the driving seat and if we stayed calm and collected that'd we'd be in control throughout the journey," Murfet said.

The Lions were left doing the Eagle rock after Mowbray bested Launceston in their Greater Northern Cup battle.

After opting to bat first, the Lions were shaken early when Mowbray opening bowler Ben Spinks (3-16) knocked over Samuel Elliston-Buckley and trapped Cameron Lynch adjacent.

Mowbray's spearhead was not done as he claimed the wicket of Lions' first-drop Dean Thiesfield to leave the travellers at 3-43.

"He challenged the top of the stumps right through his spell, I think a couple of the blokes Launceston have at the top of the order are quite aggressive he was able to get enough balls in the right area and we took our chances that's the difference," Mowbray captain Luke Scott said.

"If you don't get those blokes out they can certainly take the game away from you very quickly."

It would be banal to say early wickets always helped Mowbray but it meant that the Eagles were able to slow the game down when Launceston attempted to force the issue.

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Charlie Eastoe (38 off 56) returned to the Lions' line-up with a solid start and together with Ben Humphrey (38 off 54) in a 72-run partnership looked like it would settle Launceston's innings.

Yet, Mowbray kept forcing the issue with wickets at regular intervals including a period where they took 4-20 thanks to Ishang Shah (3-29) and John Hayes (1-40) to unravel the Lions as they were all out for 171.

"The spinners through the middle really tied the game down and we were sort of able to take regular wickets which allowed us to restrict them," Scott said.

While the title looked lower than expected, Mowbray's opener Hayes (44 off 49) launched a swift counter-attack as he dispatched the Lions' bowlers with four boundaries and cleared the fence three times.

"He got a couple away early, there was a really short boundary today to the far side and he got a couple over that to take the pressure off everyone else in the chase," Scott said.

Middle-order batters Lachlan Dakin (33 off 69) and Jonathan Jones (33 off 55) steered a 62-run stand to ensure that Mowbray recorded a four-wicket win.

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