Morriston Comprehensive has gone from 'Red' to 'Yellow' in just three years.
Schools in Swansea have been celebrating their colour code results with NO schools handed a red rating.
The annual results from National School Categorisation System places schools across the country into red, amber, yellow or green categories, demonstrating the level of support they need.
There has been an improvement across Wales.
One school in particular, Morriston Comprehensive, got in touch with us to tell us how much they have achieved in a short space of time.
"Last year we had the most improved GCSE results in Wales"
Martin Franklin, Head teacher at the school told us he is over the moon with the latest rating.
"It's the second year running we have been rated a 'yellow' school.
"Two years ago we were a 'red' school so we've gone from red to amber and now to yellow in three years.
"We are delighted about that.
"It demonstrates the success and progress we've made as a school."
Mr Franklin told us everyone has been putting in a great deal of effort to make improvements.
"The categorisation is much about the support provided to schools and I think it demonstrates that we are making progress and is a testament to the hard work being done by the staff and pupils over the years.
"We've focussed on our examination results.
"Last year we had the most improved GCSE results in Wales.
"We've also improved our attendance - it's the highest it's ever been, close to 94% now - which has increased dramatically over the last four or five years.