WoW Classic - Level 1- 60 World Record in 21Hr 16Mins | Power Leveling

https://www.youtube.com/watch?time_c...ature=emb_logo

1-8 tagging with out-of-party hunter pets killing
8-20 one pull RFC
20-40 one pull SM boosting
40-54 one pull Mara boosting
54-60 one pull ZG boosting

Note that he maximized rested exp at all times, so without being rested it'd be 2x as long.