McLaren driver Lewis Hamilton of Britain passes the security check point to enter the paddock ahead of Sunday's Indian Formula One Grand Prix at the Buddh International Circuit in Noida.
The 2008 world champion, who races for Mercedes
McLaren, is currently fifth in the drivers' standing. Asked if the split would affect him this weekend, he said, "Well it was never in my way before.
"I've been dealing with it on my own with great support from my family," Hamilton was quoted as saying by 'BBC Sport'.
"It's very tough (but) I was still able to focus at the last race and I still have that attitude."
The British star, who was placed second at last month's Korean Grand Prix, landed in India for Sunday's Indian Grand Prix only on Wednesday to "maximise" his time with friends and family.
"When those kind of things in your life are good they have a great impact on your life -- and that relationship did. I wouldn't say that I was in great spirits. It's been a tough couple of weeks and I don't think the last race did anything for me," he said.
"It was good to get back on the podium but it's only one race -- it's been a whole year of ups and downs. Hopefully with more races I'll begin to feel a boost," he added.
Hamilton and Pussycat Dolls singer Scherzinger started dating each other in 2007 and their split was announced earlier this month.