Registration has surged for the annual race since Monday and participants are being encouraged to honor the victims of the explosions by wearing the Boston Marathon colors of yellow and blue. There will also be an official tribute at the start line.

Jamie Pitblado, vice-president of promotion and community investment at The Vancouver Sun and Province, said 691 new participants signed up Monday, compared to 343 on the same day last year.

Other marathons scheduled this weekend will feature a 30-second moment of silence at the start and runners who will hold their hands over their hearts.

(READ the story from the Vancouver Sun)