Currently five places shy of a top 10 position in the European team rankings that would guarantee a Cup debut, McGinley admitted: "That was a good score because I don't view this as an easy golf course." Starting at the 10th, McGinley sunk a 40 footer to birdie the par-three 12th en route to taming the back nine in four-under 32.
Then he hit a three wood 238 yards to 20ft for an eagle three at the third to earn a share of the lead with Stenson.
The 25-year-old from Gothenburg confirmed his emerging talent by winning last season's Challenge Tour, European golf's second division. Eight birdies today suggest that Stenson will now have few problems establishing himself among the elite.
José Maria Olazabal made a solid start to his defence by turning in level par 36 and then sinking successive birdies at the 10th and 11th. That left the Spaniard two under, one behind playing partner Sam Torrance who will captain the European Ryder Cup team here in four months' time.
The Scot's opposite number, Curtis Strange, was four over on the back nine.