"It was just moving off the pitch the one to Tom moved completely, so there was no chance."
The Kinnerlys combined with Fraser taking the catch off Ross (3-55 from 12) to get another danger man in Brendan Walker, who moved up to No5 in the order after some good runs in the tail at club and representative level.
Unable to follow up on their openers, a number of United batsman got starts but no one could contribute 20 or more to the total.
"We just got out to stupid shots," said Carroll. "We were there and just didn't apply ourselves and shanked it."
Fraser Kinnerly completed a very good day by opening the batting and scoring 54, making a patient start after three maiden overs before getting his eye in and swatting eight boundaries and three sixes.
Lance's spinners came in for some brutal treatment, with one over conceeding 26 runs.
However, United veteran Jamie Whiteman was cagey from the other end and picked up five wickets - inducing a number of Marist batsmen into poor strokes right down a fielder's throat.
A close caught-behind appeal on Marist's John McIllraith being turned down led to a colourful exchange between batsman and fielders.
From 79-3, things got anxious for Marist as Fraser Kinnerly was run out by Whiteman shortly after the drinks break, then the big United veteran picked up his five-for to leave the match precariously placed at 137-6 after 26 overs.
However, Marist captain Mark Fraser played his usual steady hand and in partnership with Sam O'Leary, saw his team through to their target by the 35th over.
Marist had finished runnerup last season to Matt Burke Engineering Marton Saracens, as both teams defeated United after they failed to make a smooth transition from the one-day competition over to the red-ball Premier League.
Saracens made a good start in their attempt to retain the title with a 63-run win over St Johns Tech down in Marton on Saturday.
Put in to bat, Saracens made 266 and then dismissed the visitors for 203, leaving Tech with a bonus point.