That set the clubhouse target on 18 under and the final pair of Fitzpatrick and Detry were the only players capable of matching it after rounds of 67.
Ian Poulter, Ryan Palmer and Irish Open winner Lucas Herbert finished a shot behind, with US Open champion Jon Rahm another stroke back in seventh, a result which meant he loses his world number one ranking to Dustin Johnson.
Lee took advantage of the weather delay to watch the end of the men’s singles final at Wimbledon and said: “It was nice to see Djokovic come in and do his interview. I thought that was a good feeling and I might want to do that.