![Lydia Ko has been a big improver in Florida PHOTO: LPGA](https://static.wixstatic.com/media/2a9e9c_5ecbab894a2a406f94789f6fca5ea660~mv2.jpg/v1/fill/w_980,h_546,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/2a9e9c_5ecbab894a2a406f94789f6fca5ea660~mv2.jpg)
New Zealand's Lydia Ko sits outright seventh at the second round at the LPGA's Tournament of Champions in Florida
The defending champion's carded a bogey-free five under 67 second round to be four under overall, six shots off the lead.
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Second in the world rankings, Ko moved up 21 places on the leaderboard from her first round.
The lead is currently held by A Lim Kim of Korea.
Meanwhile Daniel Hillier and Kazuma Kobori are down the order tied 43rd 10 shots behind the leader at the DP World Tour event in Bahrain.