If he is to retain his title at the ISPS Handa Seniors Open at Gleneagles, then Pádraig Harrington – who did successfully defend his US Seniors Open title earlier this month – will have to do it the hard way, after the 54-year-old Dubliner shot a level-par 70 to trail first-round leader Cameron Percy of Australia by seven strokes.Harrington was motoring nicely in turning one-under, only to hit a television camera with his approach into the 10th – “it ricocheted into some rubbish,” he said – in running up a bogey six and then bogeyed the 12th before getting back to level with a closing birdie.“It was obviously not my best day but, you know, it’s that sort of golf course out there. You can feel a bit cautious and intimidated. There’s lots of trouble. Look, I’m a long way back at the moment, but there are 54 holes (left), so, If I free up a little bit, maybe I’ll catch up,” said Harrington, who is playing for a seventh straight week in moving between the Champions Tour and the main circuits.Of looking for a clearer mindset for the rest of the championship, Harrington claimed: “If I do free up and not worry about it, I’d be a lot better off but that’s always the battle when you’re playing golf. If you have a clear mind, you’d be the best player in the world.”Paul McGinley, making a rare appearance on the seniors circuit away from his television punditry, recovered from a bogey-double bogey speed bump by responding with three birdies in four holes on his back nine in signing for a two-under-par 68 while Darren Clarke opened with a 71.Percy, yet to win on the seniors circuit, opened with a brilliant 63 which consisted of eight birdies and a bogey. “I drove it really good but you have to here. I didn’t hit in the rough once.”In the ISPS Handa Women’s Scottish Open at Dundonald Links, where South Korea’s Jenny Shin claimed the first-round lead with a six-under 66, Leona Maguire – who had missed the cut in three of her last four tournaments – carded a solid level-par 72 to be inside the top 20. Nelly Korda, the world number one, also opened with a 72.