Inbee Park and Cristie Kerr share the lead at the CN Canadian Women's Open at Royal Mayfair Golf Club after 36 holes have been completed. Inbee Park / Getty Inbee really enjoy's starting a round with a birdie; " I always love to start with a birdie, it's like a good luck charm for me. I almost never finish around over par when I start with a birdie, and I love to start the hole with a birdie, that was a good start. I hit the ball really good, and I obviously putted really good out there, on these greens, you can two‑putt from anywhere. I think it's pretty good. If you slightly over-hit it, you can easily three‑putt. So the three‑putt is something that I was trying to avoid. I kind of three‑putted just off the green on number two which was a little disappointing. Except for that, I think I putted really good and putted really solid out there. I think it's always good when you're playing with a partner while she's making a lot of birdies and it makes you want to have more birdies. It already felt like a final round, and trying to make more birdies and trying to get the momentum going.” Cristie said is was always good to partner Inbee; “It's always fun to play with Inbee, she always plays well, and I enjoy playing with her. Probably going to play with her again tomorrow. I mean, geez, four under on this golf course is great. I'm mad at myself for knocking my last tee shot, but I did so much good stuff in the last couple days. I mean, you can't do anything about a porta potty door slamming in your back swing, and that was what it was. I sucked it up, and I made a really good two‑putt for bogey. Just got to do the same thing and not bogey the last hole.” Defending champion and first-round co-leader Kiwi Lydia Ko shot -1 under par 69 and sits two shots back in a tie for fifth at -6 under par. Playing partner Charley Hull shot a -4 under par 66 and is in a tie for eighth at -5 under par. Joining Lydia on -5 under par are Paula Creamer and LPGA legend and 20 time winner Laura Davies. Laura Davies / Getty Among those missing the cut were: Beatriz Recari, Brooke Pancake, Jennifer Kirby, Morgan Pressel, Karrie Webb, with Stacy Lewis who withdrew after the first round.