47.67% winrate @ 10hours, Ranked + Rush Using a Warlock/Murloc Rush deck Moved Hearthstone and bot window, and it crashed, but I managed to get a screenshot atleast.
Using a Murloc Warlock deck as well, went lvl25 -> lvl8 manually with it (mine's almost the same as yours but with Leeroy) But when I bot I only get ~30% win rate (Casual mode)
42.55% winrate @ ~30 hours img shows just 17:28 hours because I paused it to check on my bot every so often, but if you look at the amount of games played, you'd know that it'd be impossible for it to have played 188 games in only 17 hours. (It was amazing that it didn't crash for well over a day heh) deck:
http://www.thebuddyforum.com/hearthbuddy-forum/hearthbuddy-guides/162430-hunter-deck-ranked-46-88-winrate-low-cost-no-legend-epic.html