This was virtually a youth match, with not many players on view on either side who were out of their teens.
Kingborough missed the injured Charles White, and Gary Upton, who has joined South Hobart.
There were only two incidents worthy of note in the scoreless opening half - Michael Palmer's fierce shot, which was well blocked by Michael Moschogianis, and Matthew Chapman's effort, which came back off the Kingborough crossbar.
The two Huigsloots then came to the fore for Clarence.
In the 43rd minute, Luke Huigsloot headed home at the far post to put Clarence in front, while eight minutes from the end, Jacob Huigsloot converted a penalty - awarded for Marc Iseli's foul on Stefan Hamilton - to make it 2-0.
Voss saved Jacob Huigsloot's spot-kick, but Huigsloot was first to the rebound and he smashed the ball home from close-range but an acute angle.
Iseli atoned for his misdemeanour by rattling home a consolation goal for the Lions, his shot from 20 metres in stoppage time giving Michael Moschogianis no chance.
* * * * *
- Clarence United coach, Andrew Brown, said:
"I thought it was a fantastic effort when you consider there were three players over 19 years of age and no state players and no representative players.
"We deserved the victory.
"I was a little bit disappointed with the way we conceded towards the end. Maybe that's expecting a bit much out of the young boys."
- Kingborough Lions United coach, Geoff Freeman, said:
"It was our first game of the season and I'm not too disappointed.
"We probably let ourselves down with mistimed tackles. I'm not terribly pleased with that.
"But, I thought we played okay for the first game of the season.
"It was a nice goal by Marc to finish it off."
* * * * *
Clarence United: Moschogianis, Ling, Parker, J Huigsloot, Hunt, Toghill, Chapman, Hamilton, L Huigsloot, Knapek, Barron [Substitutes: Lewis, Phillips, Sweetten, McIntyre]
Goals: L Huigsloot 43, J Huigsloot 52 pen
Kingborough Lions United: Voss, Iseli, Andrews, Marchioli, Bevan, Wells, Palmer, McDonald, Schuth, Pearce, Bremner [Substitutes: Greg Freeman, Geoff Freeman, R Hinkley, Leaney]
Goals: Iseli 61
Ref: S Collins
Att: 300
