Agility. The most tedious of skills. I've always wondered how many hours you'd need to spend from level 10 to get to 99 legit using only Rooftop Courses. I've bumped down the experience rates because people are likely to mess up every now and then doing the course or get distracted a little.
The answer is as follows:
10-20 (Draynor Village is ~ 9000xp/hr) = 0.37 hours
20-30 (Al Kharid is ~ 9000xp/hr) = 0.99 hours
30-40 (Varrock is ~ 10000xp/hr) = 2.39 hours
40-50 (Canifis is ~ 18000xp/hr) = 3.56 hours
50-60 (Falador is ~ 22000xp/hr) = 7.84 hours
60-70 (Seers is ~ 40000xp/hr) = 11.60 hours
70-80 (Pollnivneach is ~ 49000xp/hr) = 25.49 hours
80-90 (Relleka is ~50000xp/hr) = 67.21 hours
90-99 (Ardougne is ~59000xp/hr) = 130.31 hours
Total time = 249.76 hours, or 10.41 days.
Anyone who's doing this legit, then you'd better get 250 hours of TV shows ready on a second monitor. 10-70, for anyone who wants to go to GWD and access all the dungeons, will be 26.75 hours, or 1.11 days.
Man, mad respect to anyone who can grind agility for the equivalent of almost two weeks. If you did 4 hours a day, then you'd it'd take you almost 2 months so get training!
In terms of Marks of Grace, you'd probably get 240 by the time you get to about 70 Agility.
taken from /r/2007scape

