He has faced lauded left-footer Bale hundreds of times in training since signing for Spurs from Sheffield United in July 2009.
Walker admitted to The Sun: "I've probably played against him the most - more than any other player in the world.
"With me being a right-back and him being on the left, I often end up marking him in training. I don't mind a bit. It's not as one-sided as people might think.
"Sometimes he wins the battle and sometimes I do. I would say it's 50-50. When you've faced someone a couple of hundred times you end up finding the ways to beat him. And I'm sure he now knows the best way to beat me.
"So what's the secret of stopping Gareth Bale? I think I've discovered it... but I'm not telling anybody because I want him to keep doing well for Tottenham!"