Complete the following sentence: Lockley began learning to skate in 2005. i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk>i<unk> <unk> <unk> <unk> <unk>
2013 U.S. Championships.