Down proved too strong for Derry in Sunday's Ulster SHC quarter-final at Casement Park, winning 3-19 to 1-9.
Gareth Johnston and Paul Braniff scored early goals for Down but Alan Grant found the net for Derry as the Mournemen led 2-7 to 1-6 at half-time.
Down continued to control the game in the second half, with Braniff ending the game as top-scorer on 1-10 and James Coyle grabbing a late goal.
Armagh beat Monaghan 2-17 to 2-7 in the day's other quarter-final at Newry.
Down enjoyed the wind advantage in the first half but Ruairi Convery scored the first point of the game for Derry.
Johnston found the net in the third minute and Braniff scored his goal four minutes later.
Paddy Henry forced a fine save from Graham Clarke but Grant followed up to score.
Braniff was named as man of the match and Derry manager Ger Rogan was left to reflect that his team "didn't turn up".
Armagh finished strongly at Pairc Esler to avoid an upset and book their place in the Ulster SHC semi-final.
Brian McGuigan scrambled home a Monaghan goal on 29 minutes, but Conor Corvan responded with a goal for Armagh, who led by 1-8 to 1-3 at half-time.
Stephen Lambe cracked home a second Monaghan goal eight minutes into the second half.
Substitute Neil Duffy netted Armagh's second, and they reeled off a string of late points.