A WEEKEND of thrilling play-off drama ended with Orient losing one of their London League 1 derbies for the 2010/11 season, but gaining another.
Millwall banished the memory of last season's Wembley defeat by beating Swindon Town 1-0 in front of over 73,000 fans in Saturday's League 1 final.
Former O's players Gary Alexander and Craig Easton had to be content with places on the bench for the season ending finale as Paul Robinson scored to send Alexander's Lions up at the expense of Easton's Swindon.
The south Londoners join Norwich City and Leeds United in winning promotion to the Coca-Cola Championship, while Peterborough United, Plymouth Argyle and Sheffield Wednesday head the other way.
In League 2, Dagenham earned a place in the third tier for the first time in their history after beating Rotherham United 3-2 on Sunday.
Rotherham's Ryan Taylor twice pegged back goals from Paul Benson and Danny Green to tie the score at 2-2, but Jon Nurse struck the decisive goal 20 minutes from the end.
It all means that Notts County, Rochdale, AFC Bournemouth and Dagenham & Redbridge will be joining Orient in League 1 next year after escaping the clutches of the basement division.
Stockport County, Southend United, Wycombe Wanderers and Gillingham will take their places after being relegated.
