In front of a good crowd at Sphinx Drive, the game had only been going for less than four minutes when the floodlights went out due to a power failure in nearby Bulls Head Lane.
After a thirty four minute stoppage, Sphinx went ahead in the 35th minute thanks to a looping header from Michael Wallace. Six minutes later, Declan Price added a second for John Woodward's side when he turned to drive low into the net.
Two minutes into the second half and a Matt Arnold cross set up a free kick for Jack Allen to score.
Both sides had chances but in the 66th minute, Rugby drew level thanks to a Jamie Williams header.
Back came Sphinx and the ball fell for top scorer Gianni Dainty to score with a superb strike from the outside of his left boot and give Sphinx the victory.
Sphinx
Hindmarsh,Mead,Jordan,Kay,Goodbody,Pittaway,Price,Collins.Cullinane,Wallace, Dainty Subs Used Kimberlin,Handley,Smith
Rugby
Massey,Thomas,R.Harris,Steading,Castuaton,Arnold,Smith,B.Harris,Allen,Williams, Arms Subs Evans,Cunningham,Hastings, Bains.
Other youth team results tonight and last night were
League Cup: Cinderford Town 2 Southam United 0
PREM: Atherstone Town 0 Sutton Coldfield Town 5
EAST: Banbury United 0 Racing Club Warwick 5
EAST: Bedworth United 3 Coventry Copsewood 1
EAST: Dosthill Colts 2 Nuneaton Griff 3
EAST: Stratford Town 0 Loughborough Dynamo 3
FAYC: Nuneaton Borough 2 Pershore Town 0