Year 7 students from Risedale Sports & Community College were invited to attend the official unveiling of the route for the Tour de Yorkshire.
The 32-year-old, victor of 30 Tour de France stages, attended the route announcement in Halifax on Tuesday, 5 December.
The former road race world champion's participation was announced as the route for the four-day event was unveiled today.
The Tour de Yorkshire was created as a legacy event following the Tour de France's hugely successful Grand Depart which captivated Yorkshire in 2014.
It will be the first time the city's centre has been closed off for an worldwide race since the 2014 Tour de France.
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Gary Verity, head of the organising committee, said: "Getting the fourth day is a major thing for us".
At the press conference Mrs Hailwood was able to take a few snaps of British Professional cyclist Mark Cavendish MBE, who it is hoped will take part in the race.
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The expanded women's race will see a 132.5km stage from Beverley to Doncaster and a 124km stage from Barnsley, again finishing on the Cow and Calf in Ilkley.
The second stage goes from Barnsley to Ilkley and the final day sets off from Halifax, with the victor crowned in Leeds.
Stage three will be a familiar finish on Scarborough's North Shore after starting in Richmond and taking in the North Yorkshire Moors.