"Without a shadow of a doubt, we couldn't have hoped for much more from our athletes" said Prof McAllister.
"Together with their coaches and support teaches, they've done exceptionally well".
"To come away with seven medals in the Olympics, and fifteen Welsh medallists in the Paralympics is quite some achievements, because the standards in these competitions are rising constantly".
Ellie Simmonds claimed her fourth medal of London 2012 when she took silver in the S6 100 metres freestyle.
The 17-year-old had already secured two golds and one bronze and on Saturday morning qualified second for the two-length race.
She repeated that in the evening when she touched second after Victoria Arlen in one minute 14.82 seconds with the American lowering her own world record to 1min 13.33secs.
– Ellie Simmonds
I gave it everything on that last 50. I could see her but I just didn't have anything left.
I'm just really chuffed. A PB by over a second, I'm just really happy. I would have loved to get the gold but you can't have everything."
Asked how the Games compared to 2008, she said: "I think Beijing's always going to be the best Games for me. I loved it all and it was my first Games.
This Games has been amazing as well though. It's been topped off by my swims.
It's been really good in front of a home crowd, it's been amazing.
Two of our Olympic rowing medallists have had a hero's welcome back at their old school in Chester.
Chris Bartley and Tom James, who secured silver and gold respectively, both learned to row at the King's School in Chester.
The whole school was out to welcome the men on the school's playing fields this morning.
Paralympic cyclist Mark Colbourne failed to win a forth Paralympic medal yesterday, but has a gold and two silvers to his name.
"It's just been breathtaking... it really really has" he says.
"If you go back two years ago when I had this feeling and this dream that I could maybe achieve something in London... well, this week has just been breathtaking."
"I don't want it to stop!"
Cyclist Mark Colbourne has taken silver in the men's C1 time-trial at Brands Hatch
Colbourne, who won C1-3 individual pursuit gold in the velodrome, clocked 25 minutes 29 seconds on the 16-kilometre course, but Michael Teuber of Germany pipped him to victory, finishing first in 25mins 16secs.