It was only a little cup, only a small game in an unimportant league.
But to the team, all under 15, and their faithful parent fans, it meant more than any championship win anywhere in the world.
The teams were equally matched, either would have deserved to win - but his team did ....and their fans went wild.
After almost a decade of playing together as a team, almost a decade of turning up for training in the pouring rain and freezing cold, almost a decade of nearly winning, at last- they actually won.
They haven't had an easy time of it over the years.
Different managers, temper tantrums, yellow cards, injuries - just like any team.
But what has been amazing for us parents, has been watching them grow and mature.
They started playing as " under 6's."
Joss, shy and insecure, had to be dragged along on the day he joined.
A group of small boys in shirts and shorts 3 sizes too big.
And now, almost 10 years on, they are taller than us, with their trendy high-hair adding at least 2 inches and their orange shirts always half tucked into their black shorts- not cool any other way.
And I am amazed at what they have learnt:
how to kick a ball in a straight line, how to pass it to others and not just keep it themselves, how to throw-in, how to tackle without hurting, how to attack and defend, how to angle kicks at goal, how to lose without giving up, they even learnt to play and accept the off-side rule.
As spectators and parents we have watched their characters grow and develop, watch them take on roles and positions .
They have learnt tenacity, self-control (most of the time), determination and most of all they have learnt to work as a team.
And so the cup final last week was not just a game, it was the culmination of all they have learnt and worked at and strived for.
They had lots of missed opportunities, goals saved and missed, but they didn't give up
And when the final whistle blew and they won 2-0, the cheers, almost a decade of pent up emotion, reverberated through Arundel and bounced off the castle walls.
The match was played on a floodlit pitch in front of the castle as the sun was setting over the Downs..
An age-old game in an age-old city played by the generation of tomorrow.
And who knows what will happen next season.
It's hard to pin down sixteen year olds as they turn from boys into young men.
Hard to know if they will commit to training on rainy Saturdays and matches on freezing Sundays.
But for now, at least, they are a team and they have won the cup and their hair is still looking good.
Life doesn't get much better!