“I had some cake left last night,” she told CNN Sport’s Amanda Davies. “And it was in the colors green and gold, which of course is very special for me.
“Not exactly the athlete’s breakfast you would expect, but today was a special occasion.”
After a few days of hurricane, the 31-year-old from County Tipperary, Ireland, admits that her performance has not yet been fully achieved. The Grand National is considered to be the toughest and most spectacular obstacle race in the world.
While media attention has focused on the athletic milestone her success represents, the first woman to win the Grand National says that was not what she had in mind when she crossed the finish line.
“You are just the winning jockey and you are just amazed,” she says. “I have no illusions about it [a milestone] If you’re the first person to do something, this will be a topic of conversation.
“And I hope it helps the industry, it helps other jockeys, other female jockeys, but on a personal level I was just delighted to win the race.”
Blackmore points to the advances female jockeys have made before her and how this has created a receptive environment for them and other women to enter the sport.
“I was very lucky,” she says. “I think the successes mostly from Katie Walsh and Nina Carberry when I walked into the weight room.
“You had had multiple winners, Irish Grand National winners. Your successes had somehow destroyed any stigma that lingered in the background.
“It was a very welcoming place for me and a level place and I think races should take great pride in the equality of opportunity there. If you are ready, male or female, if you are ready to work hard, and when you have the talent, the opportunity is given. “
Given that only three of the 40 jockeys at the Grand National on Saturday were women, there’s still a lot to do when it comes to equal opportunities in the sport.
Blackmore disagrees, and believes personal choice is the more likely factor behind breed gender differences.
“People can forget that it might not be a career that a lot of women in the industry or girls who are starting out want to pursue, and it just goes on,” she says.
“I think if there are girls who want that, I don’t think gender can act as a deterrent or an excuse for them to achieve what they want to achieve at this stage.
“It’s a done deal. If you want to be a jockey, you can just stand up and work hard. The sex is gone now I think.”