In his final race of the season, he was sent off a warm 2/1 favourite for the Grade 1 4-Y-O Novices' Hurdle at Aintree in April and finished a 2½ length 3rd to 33/1 winner Le Duc.

Well Chief made his reappearance the following season (2003/04) in the Elite Hurdle in November, where he won by just under 2 lengths and shaved 0.2 seconds of the course record which had stood for nearly 9 years.

After winning a Novices Chase at Taunton, he was stepped up to Grade 1 class at the Cheltenham Festival, where he was sent off a 9/1 shot for the Arkle Challenge Trophy and won by a length from Kicking King.

After that run, Well Chief was sent off an odds on favourite for the Castleford Chase at Wetherby, in which he fell at the fourth last fence.

Well Chief returned to action in the Queen Mother Champion Chase at the 2009 Cheltenham Festival, finishing second behind Master Minded.