It's fairly obvious that it was probably someone else sparring for her, but it doesn't even matter because the leaderboards have had very little integrity for months anyway. The PC board has actually, but a little flop like that isn't going to offset much. It's dumb, but oh well.
It's a drop in the bucket compared to what I imagine people used to do when you could pause boost under the same IP and boost all day at spars like Sardon's, Angel Clan, etc.