I'm trying to set up an easy way to create a sports qualification/elimination ladder like e.g. this: http://www.raceamerica.com/download/ladders/ladr32p.pdf
I'll take care of the contents programmatically, but looking for an easy, dynamic way of creating the actual layout of the tree. Each node might be filled with text data, or remain empty.
I tried some examples I found using TikZ/Forest or basic TikZ stuff, but most of the examples didn't work out the way I needed them (e.g. with the boxes not being placed nicely vertically centered between the two preceding boxes). I've also tried putting my own macros together (I'm a bit rusty, f* you, M$ Office!), but haven't come too far yet.
The output does not have to look exactly like that, as long as the basic structure comes out like that and I can fill the nodes with my data (probably small table or two-liner)
Can anyone suggest some macro package to solve this? Non-LaTeX (PlainTeX) preferred, but will not be picky if it is something that requires LaTeX as long as it works ... ;)