How are ASP Events Organized and Structured

Hi,
Currently following the ASP Tour # 8.
http://www.aspworldtour.com/events/2014 ... es/results
I see there are many Rounds and within those rounds, different number of heats.
Looking at the event pdf: http://www.aspworldtour.com/asset/2370
Main question is, how are opponents placed for each successive round and heat?
Also,
How many get eliminated each Round?
Why are some heats 2 people and others 3?
Why are certain opponents placed against each other and others not?
What do these mean:
"1st>Rnd3,2nd,3rd>Rnd2"
"25th Ratings Points 500"
"R" "W" and "B" to to the very left of Round 1 heats?
Any help is appreciated,
Thank You!
Currently following the ASP Tour # 8.
http://www.aspworldtour.com/events/2014 ... es/results
I see there are many Rounds and within those rounds, different number of heats.
Looking at the event pdf: http://www.aspworldtour.com/asset/2370
Main question is, how are opponents placed for each successive round and heat?
Also,
How many get eliminated each Round?
Why are some heats 2 people and others 3?
Why are certain opponents placed against each other and others not?
What do these mean:
"1st>Rnd3,2nd,3rd>Rnd2"
"25th Ratings Points 500"
"R" "W" and "B" to to the very left of Round 1 heats?
Any help is appreciated,
Thank You!