Tidal Bay has been allotted top weight of 11st 10lb for the Crabbie's Grand National at Aintree on April 5.
The Paul Nicholls-trained 13-year-old was given the same weight for the race last year only for injury to bring a premature end to his season and force him to miss the marathon event.
Tidal Bay, who was last seen finishing second in the Irish Hennessy at Leopardstown over the weekend, is followed by Nicky Henderson's Long Run, who has been given 11st 9lb at Aintree.
Fellow Henderson inmate Hunt Ball, a previous Cheltenham Festival winner, is on 11st 7lb, while Gordon Elliott's Roi Du Mee has been given 11st 6lb.
Another Henderson contender, the Hennessy winner Triolo D'Alene, who claimed the Topham Chase over the National fences last year, is on the same weight.
The Seven Barrows team is completed by Shakalakaboomboom on 10st 3lb.
Rocky Creek, runner up in both the Hennessy and the Argento Chase, is another leading fancy for Nicholls on 11st 5lb, with Venetia Williams' Katenko on 11st 4lb, the same weight as he was given at this stage last year.
Nicholls also has Kauto Stone (11st 1lb), Sire Collonges (10st 8lb), Hawkes Point (10st 6lb), Mon Parrain (10st 7lb) and There's No Panic (9st 11lb).
The Michael Scudamore-trained Monbeg Dude is towards the head of the market with most firms for the four-mile-three-and-a-half-furlong race and he has been given 10st 9lb, while last year's third Teaforthree, trained by Rebecca Curtis, has 10st 12lb.
Curtis said: "I think that's a lovely weight for Teaforthree. I'm very happy.
"He's got 5lb less than he carried in the race last year, so you'd have to be very hopeful.
"I do want to get two runs into him before Aintree, so he'll probably run at Ascot on Saturday and then in something at Cheltenham."
Ted Walsh has two contenders in Colbert Station (11st) and Seabass, who has been allotted 11st 2lb - the same weight as in the initial handicap last year.
Willie Mullins has eight possibles, headed by Boston Bob and On His Own, who have both been given 11st 3lb.
Prince De Beauchene (10st 10lb), Vesper Bell (10st 5lb), Away We Go (10st 4lb), Quel Esprit (10st), Up The Beat (10st) and Rockyaboya (9st 11lb) comprise his team at this stage.
Last year's Scottish National hero Godsmejudge has an initial mark of 10st 11lb, while Mossey Joe, now trained by Enda Bolger following his sale to owner Barry Connell, has 11st 1lb.
Bolger said: "I think he looks highly rated for a hunter chaser, but all his best form seems to be in the latter half of the season.
"We intend to give him a run in a point-to-point on Sunday week. He's settled in fine."
The Irish handler also has Quantitativeeasing (10st 9lb) and Quiscover Fontaine (9st 10lb) engaged at this stage.
Bolger said: "I don't think he (Quantitativeeasing) is qualified to run in the race yet, so we are running out of time as the ground has been so heavy.
"That's a nice weight for Quiscover Fontaine. He'll probably go for the cross-country race at Cheltenham first."
Bog Warrior is an interesting entry on 11st 2lb with the 10-year-old having been off the track since suffering an injury when finishing fifth in the World Hurdle last year.
Grand National weights:
TIDAL BAY 13-11-10; LONG RUN 9-11-09; HUNT BALL 9-11-07 ; ROI DU MEE 9-11-06; TRIOLO D'ALENE 7-11-06; ROCKY CREEK 8-11-05; KATENKO 8-11-04; BOSTON BOB 9-11-03; ON HIS OWN 10-11-03; BOG WARRIOR 10-11-02; SEABASS 11-11-02; KAUTO STONE 8-11-01; MOSSEY JOE 11-11-01; QUITO DE LA ROQUE 10-11-01; CANTLOW 9-11-00; COLBERT STATION 10-11-00; RUBI LIGHT 9-11-00; TONER D'OUDAIRIES 7-11-00; WALKON 9-11-00
BALTHAZAR KING 10-10-13; CARLINGFORD LOUGH 8-10-13; WAYWARD PRINCE 10-10-13; CAPE TRIBULATION 10-10-12; MR MOONSHINE 10-10-12; TEAFORTHREE 10-10-12; ACROSS THE BAY 10-10-11; DOUBLE SEVEN 8-10-11; GODSMEJUDGE 8-10-11; PLANET OF SOUND 12-10-11; BATTLE GROUP 9-10-10; BUCKERS BRIDGE 8-10-10; LION NA BEARNAI 12-10-10, PRINCE DE BEAUCHENE11-10-10; MASSINI'S MAGUIRE 13-10-09; MONBEG DUDE 9-10-09, QUANTITATIVEEASING 9-10-09; SUNNYHILLBOY 11-10-09; BIG SHU 9-10-08; BURTON PORT 10-10-08; JUNIOR 11-10-08; OUR FATHER 8-10-08; SIRE COLLONGES 8-10-08
MON PARRAIN 8-10-07; MOUNTAINOUS 9-10-07; THE RAINBOW HUNTER 10-10-07; VINTAGE STAR 8-10-07; CHANCE DU ROY 10-10-06; HAWKES POINT 9-10-06; HOME FARM 7-10-06; KRUZHLININ 7-10-06; PINEAU DE RE 11-10-06; WHITE STAR LINE 10-10-06; GOLAN WAY 10-10-05; MIDNIGHT APPEAL; PETE THE FEAT 10-10-05; TWIRLING MAGNET 8-10-05; VESPER BELL 8-10-05; AWAY WE GO 11-10-04; MART LANE 9-10-04; RENARD 9-10-04 ; SAME DIFFERENCE 8-10-04; THE PACKAGE 11-10-04; WELL REFRESHED 10-10-04; RAZ DE MAREE 9-10-03; ROSE OF THE MOON 9-10-03; SHAKALAKABOOMBOOM 10-10-03; TATENEN 10-10-03; ALVARADO 9-10-02; HIGHLAND LODGE 8-10-02; LAST TIME D'ALBAIN 10-10-02; LOST GLORY 9-10-02 J P McManus Jonjo O'Neill; MERRY KING 7-10-02; ONE IN A MILAN 9-10-02; PANDORAMA 11-10-02; GOONYELLA 7-10-01; GOULANES 8-10-01; IKORODU ROAD 11-10-01; LIBERTY COUNSEL 11-10-01 SWING BILL 13-10-01
QUEL ESPRIT 10-10-00; SOLL 9-10-00; UP THE BEAT 9-10-00; MINELLA FOR VALUE 8-9-13; NIGHT IN MILAN 8-9-13; SAINT ARE 8-9-13; OUT NOW 10-9-12; TRANQUIL SEA 12-9-12; ALFIE SHERRIN 11-9-11; COURT BY SURPRISE 9-9-11; ROCKYABOYA 10-9-11; ROMANESCO 9-9-11; THERE'S NO PANIC 9-9-11; ORPHEUS VALLEY 11-9-10; QUISCOVER FONTAINE 10-9-10; STANDING OVATION 7-9-10; WYCK HILL 10-9-10; BAILE ANRAI 10-9-09; GULLIBLE GORDON 11-9-09; QUINZ 10-9-09; UNDERTHEBOARDWALK 8-9-08; WRONG TURN 8-9-08
ANY CURRENCY 11-9-06; REAL MILAN 9-9-06; SIR DU BEARN 8-9-06 ; SOLIX 8-9-06; STORM SURVIVOR 8-9-06; VICTRIX GALE 8-9-06; WHODOYOUTHINK 9-9-06; TOUR DES CHAMPS 7-9-04; BOB FORD 7-9-03; LIVING NEXT DOOR 8-9-03; MERLIN'S WISH 9-9-02; SERGEANT PINK 8-8-11; TARQUINIUS 11-8-11; RINGA BAY NQ.