Michael Dunlop secured a win double and broke the course record at the Cookstown 100 road races on Saturday.
Dunlop, riding a V2 Ducati, led from start to finish in the Supersport race, run in dry conditions over nine laps of the 2.1-mile Orritior course.
McGee, on an ex-Ten Kate World Supersport machine, pushed Dunlop for much of the race but trailed by four seconds at the chequered flag in finishing second. Michael Sweeney, Darryl Tweed and Kevin Keyes made up the top five.
Later in the day BMW-mounted Dunlop ran out the victor in the feature Cookstown 100 event, holding a 5.6 seconds advantage over early leader Sweeney, with McGee a further 16.5 seconds in arrears in third.
The Ballymoney rider set the new lap record on his sixth circuit of seven with a speed of 91.773mph, one minute 22.377 seconds.
Mullingar rider McGee was a convincing winner of the Moto3 class, coming home 18.75 seconds ahead of Manxman Dan Sayle, with Nigel Moore third. Darryl Tweed won both the Lightweight Supersport and Classic Superbike races.
