Rio de Janeiro, April 19 (IANS): Star sprinter Usain Bolt continued his goodwill tour of the city as a guide runner for Paralympic champion athlete Terezinha Guilhermina here.

The 28-year-old Jamaican smiled as he held the Brazilian's hand in a 50 metre sprint on Saturday, reports Xinhua.

"It was a dream come true," Guilhermina told rio2016.com on Saturday.

"He was a little uncertain at the start, afraid that I might fall over or that he would run too fast. This shows how much respect events like this bring to Paralympic athletes."

Guilhermina won 100m and 200m gold at the London 2012 Games and 200m gold at the Beijing Games four years earlier.

Bolt is in Rio for Sunday's "Mano a Mano" race at the Brazilian Jockey Club.

The six-time Olympic gold champion will compete against Brazil's Jose Carlos Moreira, Holland's Churandy Martina and American Ryan Bailey in the event.

The women's event will comprise Jamaicans Veronica Campbell-Brown and Kerron Stewart, plus Brazil's Vitoria Cristina Silva Rosa and American Carmelita Jeter.

There will also be a Paralympic race featuring Alan Oliveira, who won 200m gold at 2012 London, plus United States sprinters Paul Peterson and Richard Browne, and Germany's Felix Streng.