http://www.gosugamers.net/hon/news/24787-hon-tour-na-eu-season-2-with-dramatic-changes Here is the prizepool for 2nd season, but i'm honestly unable to find info about the first one, since it was overwritten by new information and the most info i can find is this: http://www.gosugamers.net/hon/news/21369-the-wait-is-over-330-000-hon-tour-announced

As for dates, everything can be found in this calendar, beginning in late 2012: http://hontour.com/calendar.php

Some information about teams can be found here, although it's pretty much just approximate, since dates aren't included in detail: http://hon.gamepedia.com/Category:Teams

While i know HoN isn't the best e-sport nowadays, it still generates a lot of money via HoNtour, the biggest long-running tournament out there with 3 seasons being ran over the past few years. However, this page only takes winnings from the Grand Finals LAN in, whilst there is a lot of money given in each Cycle (which is basically the main income of a HoN player, making the estimated earnings completely off). I know it might be hard to add some tournaments retroactively, especially if they started running in 2012, but i'm letting you know anyway, since it's making a huge difference.

Here is something like an overview of results from past seasons (season 3 is still running) http://forums.heroesofnewerth.com/showthread.php?546519-Overview-of-HoN-Tour-Results-(Season-1-2-and-3) I could potentially help with some player-team information if needed, since it's way back in time and many teams disbanded in meantime.

Prizing for last season: http://hontour.com/events/season3