Everything you need to know about the Randox Health Grand National (except what wins it) can be found in our comprehensive guide to the Aintree spectacular.
The 2019 Randox Health Grand National is due off at 5.15pm on Saturday, April 6.
UK viewers can watch the race on ITV Racing or by subscribing to Racing TV.
You can find all the latest news, including declarations, quotes from connections, previews and tips, in our Grand National hub.
After his hard-fought victory last year, Tiger Roll returns at the top of his game and heading the betting. As was the case in 2018, he prepared by winning the Cross Country Chase at Cheltenham. He heads a potentially huge team for trainer Gordon Elliott, who first won the race with Silver Birch in 2007.
Anibale Fly has also been popular after finishing second in the Magners Cheltenham Gold Cup, with Vintage Clouds and Lake View lad - both wearing the colours of Trevor Hemmings - also expected to go well after finishing second and third respectively at the Cheltenham Festival. The former, however, does need several horses to come out if he is to get a run.
Pleasant Company, beaten a head by Tiger Roll last year, gets the chance to go one better with a 2lb pull at the weights. He represents Gold Cup-winning trainer Willie Mullins, who also has Rathvinden among his many options.
Bristol De Mai is set to carry top weight. That means he'll have to give 4lb to Anibale Fly, despite finishing one place behind him at Cheltenham.
Click here for the latest odds from Sky Bet, who are offering non-runner, no bet and five places on each-way bets.
The Grand National is run over a trip of 4m2f and 74 yards. It is open to horses who have finished in the first four of any steeplechase over a distance of 2m7.5f or more, and have run in at least three steeplechases altogether. They must be rated at least 125 and be seven years old or more.
A total of 30 fences are jumped, including Becher’s Brook, famed for its steep landing and jumped twice during the race. Despite having been reshaped for safety reasons, it remains a fearsome test and one of the most famous in jumps racing.
Becher's is followed by Foinavon, named after the only horse to clear it in the 1967 renewal. This obstacle is innocuous compared to what comes immediately before it, but still needs dealing with and can catch a horse out.
The Chair is almost unique in that it is jumped only once. It is tall and deep, with the ground on the landing side raised slightly, asking a horse to get organised quickly. After The Chair comes the water jump, also jumped just once as runners head out on their final circuit.
A maximum of 40 horses will line-up for the race. Here are the current entries, their trainers and allotted weights. There are four reserves who have until Friday morning to replace any late defectors.
Anibale Fly (Tony Martin, Barry Geraght) 11-10
Valtor (Nicky Henderson, Daryl Jacob) 11-6
Tiger Roll (Gordon Elliott, Davy Russell) 11-5
Outlander (Gordon Elliott, Keith Donoghue) 11-4
Don Poli (Gordon Elliott, Patrick Mullins) 11-3
Go Conquer (Nigel Twiston-Davies, Sam Twiston-Davies) 11-3
Mala Beach (Gordon Elliott, Jamie Codd) 11-2
Minella Rocco (Jonjo O'Neill, Richie McLernon) 11-1
Lake View Lad (Nick Alexander, Henry Brooke) 11-1
Pleasant Company (Willie Mullins, Paul Townend) 11-1
Ballyoptic (Nigel Twiston Davies, Tom Bellamy) 11-1
Dounikos (Gordon Elliott, Jack Kennedy) 11-00
Rathvinden (Willie Mullins, Ruby Walsh) 11-00
One For Arthur (Lucinda Russell, Derek Fox) 11-00
Rock The Kasbah (Philip Hobbs, Richard Johnson) 10-13
Warriors Tale (Paul Nicholls, Harry Cobden) 10-13
Regal Encore (Anthony Honeyball, Mark Walsh) 10-12
Magic Of Light (Jessica Harrington, Paddy Kennedy) 10-11
A Toi Phil (Gordon Elliott, Denis O'Regan) 10-11
Jury Duty (Gordon Elliott, Robbie Power) 10-11
Noble Endeavour (Gordon Elliott, Mark Enright) 10-10
Monbeg Notorious (Gordon Elliott, Sean Bowen) 10-10
Ramses De Teillee (David Pipe, David Noonan) 10-9
Tea For Two (Jane Williams, Lizzie Kelly) 10-9
Mall Dini (Patrick Kelly, Sean Flanagan) 10-8
Step Back (Mark Bradstock, Nico de Boinville) 10-7
Ultragold (Colin Tizzard, Tom O'Brien) 10-7
Blow By Blow (Gordon Elliott, Andrew Ring) 10-6
Up For Review (Willie Mullins, Danny Mullins) 10-6
Singlefarmpayment (Tom George, Paddy Brennan) 10-6
Vieux Lion Rouge (David Pipe, Tom Scudamore) 10-6
Valseur Lido (Henry de Bromhead, Rachael Blackmore) 10-6
Vintage Clouds (Sue Smith, Danny Cook) 10-6
General Principle (Gordon Elliott, J J Slevin) 10-4
Livelovelaugh (Willie Mullins, David Mullins) 10-4
Walk In The Mill (Robert Walford, James Best) 10-4
Folsom Blue (Gordon Elliott, Luke Dempsey) 10-4
Captain Redbeard (Stuart Coltherd, Sam Coltherd) 10-3
Bless The Wings (Gordon Elliott, Robert Dunne) 10-3
Joe Farrell (Rebecca Curtis, Adam Wedge) 10-2
Just A Par (James Moffatt) 10-2
The Young Master (Neil Mulholland) 10-2
Isleofhopendreams (Willie Mullins) 10-2
Exitas (Phil Middleton) 10-2
David Ord profiles the likely runners in Saturday's Randox Health Grand National at Aintree.
After 20/1 and 11/1 winners at Cheltenham last week, our long-range racing expert Matt Brocklebank turns his hand to the two major spring handicaps - the Randox Health Grand National at Aintree and Doncaster's Unibet Lincoln Handicap.
Here is a list of Grand National winners and their starting prices since the second World War. Six clear favourites have won the race with three winners at 100/1.
The last favourite was Don't Push It, who shared that position when Sir AP McCoy famously rode him to victory in 2010. Tiger Roll was the shortest-priced winner since when clinging on in 2018, though is now shorter for the 2019 renewal than any horse since Poethlyn - who was sent off 11/4 favourite exactly a century ago.
2018: Tiger Roll (10/1)
2017: One For Arthur (14/1)
2016: Rule The World (33/1)
2015: Many Clouds (25/1)
2014: Pineau De Re (25/1)
2013: Auroras Encore (66/1)
2012: Neptune Collonges (33/1)
2011: Ballabriggs (14/1)
2010: Don’t Push It (10/1 joint-favourite)
2009: Mon Mome (100/1)
2008: Comply or Die (7/1 joint-favourite)
2007: Silver Birch (33/1)
2006: Numbersixvalverde (11/1)
2005: Hedgehunter (7/1 favourite)
2004: Amberleigh Hous (16/1)
2003: Monty’s Pass (16/1)
2002: Bindaree (20/1)
2001: Red Marauder (33/1)
2000: Papillon (10/1)
1999: Bobbyjo (10/1)
1998: Earth Summit (7/1 favourite)
1997: Lord Gyllene (14/1)
1996: Rough Quest (7/1 favourite)
1995: Royal Athlete (40/1)
1994: Miinnehoma (16/1)
1992: Party Politics (14/1)
1991: Seagram (12/1)
1990: Mr Frisk (16/1)
1989: Little Polveir (28/1)
1988: Rhyme ‘n’ Reason (10/1)
1987: Maori Venture (28/1)
1986: West Tip (15/2)
1985: Last Suspect (50/1)
1984: Hallo Dandy (13/1)
1983: Corbiere (13/1)
1982: Grittar (7/1 favourite)
1981: Aldaniti (10/1)
1980: Ben Nevis (40/1)
1979: Rubstic (25/1)
1978: Lucius (14/1)
1977: Red Rum (9/1)
1976: Rag Trade (14/1)
1975: L’Escargot (13/2)
1974: Red Rum (11/1)
1973: Red Rum (9/1 joint-favourite)
1972: Well To Do (14/1)
1971: Specify (28/1)
1970: Gay Trip (15/1)
1969: Highland Wedding (100/9)
1968: Red Alligator (100/7)
1967: Foinavon (100/1)
1966: Anglo (50/1)
1965: Jay Trump (100/6)
1964: Team Spirit (18/1)
1963: Ayala (66/1)
1962: Kilmore (28/1)
1961: Nicolaus Silver (28/1)
1960: Merryman II (13/2 favourite)
1959: Oxo (8/1)
1958: Mr What (18/1)
1957: Sundew (20/1)
1956: E.S.B. (100/7)
1955: Quare Times (100/9)
1954: Royal Tan (8/1)
1953: Early Mist (20/1)
1952: Teal (100/7)
1951: Nickel Coin (40/1)
1950: Freebooter (10/1 favourite)
1949: Russian Hero (66/1)
1948: Sheila’s Cottage (50/1)
1947: Caughoo (100/1)
1946: Lovely Cottage (25/1)
Thursday
1.45 - Manifesto Novices' Chase (Grade One, 2m4f)
2.20 - Doom Bar Anniversary 4YO Juvenile Hurdle (Grade One, 2m1f)
2.50 - Betway Bowl (Grade One, 3m1f)
3.25 - Betway Aintree Hurdle (Grade One, 2m4f)
4.05 - Randox Health Foxhunters' Chase (2m5f)
4.40 - Close Brothers Red Rum Handicap Chase (Grade Three, 2m)
5.15 - Goffs UK Nickel Coin Mares' Standard Open NH Flat race (Grade Two, 2m1f)
Friday - Ladies' Day
1.45 - Merseyrail Handicap Hurdle (Grade Three, 2m4f)
2.20 - Betway Top Novices' Hurdle (Grade One, 2m½f)
2.50 - Betway Mildmay Novices' Chase (Grade One, 3m1f)
3.25 - JLT (registered as the Melling) Chase (Grade One, 2m4f)
4.05 - Randox Health Topham Steeple Chase (Grade Three, 2m5f)
4.40 - Doom Bar Sefton Novices' Hurdle (Grade One, 3m½f)
5.15 - Weatherbys Racing Bank Standard Open NH Flat race (Grade Two, 2m1f)
Saturday - Grand National day
1.45 - Gaskells Handicap Hurdle (Grade Three, 3m½f)
2.25 - Betway Mersey Novices' Hurdle (Grade One, 2m4f)
3.00 - Doom Bar Maghull Novices' Steeple Chase (Grade One, 2m)
3.40 - Ryanair Stayers' (registered as the Liverpool) Hurdle (Grade One, 3m½f)
4.20 - Betway Handicap Steeple Chase (Listed, 3m1f)
5.15 - Randox Health Grand National Steeple Chase (Grade Three, 4m2½f)
6.20 - Pinsent Masons Handicap Hurdle (conditional and amateur riders, 2m½f)