Russell Hobby, General Secretary of the National Association of Head Teachers, said outside the High Court:
"We want a regrading. Too many students have actually left the education system believing that it's not for them as a result of this.
"So Ofqual's solutions have been totally inadequate. What we need is the grade shifted back to what it was in January and then tens of thousands of students who've been denied apprenticeships and higher education can carry on with their lives."
More top news
Baronness Warsi has hit out at her own party's London mayoral campaign, suggesting it may destroy any prospect of winning.
After a chilly start to spring with April frosts rather than showers finally warmer weather is on its way.
President Obama's daughter Malia has accepted a university offer from Harvard, according to her parents.