Grand National 2021 live stream: How to watch the race from Aintree online from anywhere 10 Apr 2021 Arguably the most hotly anticipated race day of the year, the 173rd annual running of the greatest steeplechase in horse racing takes place this weekend at Aintree racecourse in Liverpool. Read on for your full guide to getting a Grand National 2021 live stream, and watch the race online from anywhere. Source: The Jockey Club Watched each year by over 500 million viewers in more than 140 countries, the Grand National sees its 40 competitors take on Aintree's unique and world-famous fences. Back after last year's event was cancelled due to the pandemic, the race sees up to 40 horses attempt to clear 30 of some of horse racing's most demanding fences over the course of four and a half miles.