Rotherham United 1 Millwall 0: Raggett header the difference
Raggett broke the deadlock at the New York Stadium in the 20th minute of Sunday's contest, heading into the bottom-left corner from Will Vaulks' right-wing cross.
Paul Warne's men spurned multiple chances to extend their lead in a first half they had the better of, but their profligacy was not punished.
Indeed, the Millers were able to survive some late pressure from Millwall, who they leapfrog in the table to move up to 15th.
FT| Millers 1 v 0 Millwall.
A rightly-jubilant Paul Warne salutes the home supporters before making his way down the tunnel.
His side turned in a determined display and showed great resolve to repel a late barrage of attacks from the visitors. #rufc— Rotherham United (@OfficialRUFC) August 26, 2018