The maximum permitted field of 40 runners competed for a share of the £975,000 prize fund, which made the National the most valuable jump race in Europe.
The race was won by 66/1 shot Auroras Encore, who was ridden by jockey Ryan Mania for trainer Sue Smith.
Aintree announced that 84 horses had been entered for consideration in the 2013 Grand National, including last year's runner-up Sunnyhillboy, as well as Seabass and Cappa Bleu, third and fourth in the 2012 race respectively.
Others hoping to return to the National for 2013 included Oscar Time, Big Fella Thanks, What A Friend, Cloudy Lane, Calgary Bay, and 2011 winner Ballabriggs.
[8] The top weight of 11 st 10 lb was allotted to Tidal Bay, trained by last year's winning trainer Paul Nicholls, however the horse was withdrawn two days later with a stress fracture of the lower cannon bone on his right hind leg.
[11] The Chair is the penultimate fence on the first circuit and marked the end of the race for champion jockey Tony McCoy who was unseated from Colbert Station.
At the final fence, Paul Carberry pulled up Chicago Grey while Mumbles Head refused and two other horses unseated their riders.
[11] At the elbow on the 494-yard run-in, Auroras Encore had extended his lead over Teaforthree and Oscar Time, the latter fading and quickly overtaken by Cappa Bleu.
At the line, the pairing of Auroras Encore and Ryan Mania – taking his first ride in the Grand National – won by a distance of nine lengths, Cappa Bleu pipped Teaforthree for second place, Oscar Time finished in fourth and Rare Bob was fifth.
[12] He did race the following afternoon, but was injured in a fall during the St. John Lee Handicap Hurdle and had to be airlifted to Newcastle Royal Infirmary where he was described as being in a "stable" condition.
"[14] With two equine fatalities in each of the two previous Nationals, much of the media commentary after the 2013 race hailed the fact that all 40 runners had returned safely to the stables and that only two had fallen at the modified fences.
They head to the elbow, Auroras Encore from Teaforthree, then Oscar Time back in third place, followed by Cappa Bleu and Swing Bill.
Inside the final furlong, Auroras Encore and Ryan Mania out in front here and has drawn eight lengths clear of the tiring Teaforthree, Cappa Bleu running on, but it will go to the Sue Smith team!
[18] Clare Balding and Nick Luck presented Channel 4's coverage, supported by Jim McGrath, Mick Fitzgerald and Graham Cunningham.