well ...
it's a little hard to do this after the fact, and also hard to do in advance.
for the R1 matches, I did indicate what mat they took place on in the R1 thread, with the exceptions being Gulibon's and LawDog's match. I don't recall what mat Gulibon wrestled on. LawDog was on mat 8.
As for times that the matches took place, you could estimate that. While R1 started at noon, the initial matches were pigtails. I think the 125 matches started around 12:15. The matches ended around 4:15 (I could be off by 15 minutes), so just divide that interval by 10, and you can figure out the approximate time of each match.
In terms of links, I don't think you can link to specific matches on ESPN3. I think you can open the link for a specific mat, and scroll through to the time you want, but that's about all can do. Perhaps there is a way to open it to a specific time, but if so I'm not aware of how to do that.
As for future matches, perhaps there is a master schedule that indicates that match XXX will be on mat ?, but if so I don't believe it's provided to the public. Pat tweets out the mat's # when a match involving a PSUer is "in the hole." In addition, TrackWrestling will show the next 2 matches on each mat. As for the time when a match will start, after the initial matches in any round, that's pretty much dependent upon how the earlier matches go (pins accelerate things, OT delays things, injury time, blood time, video review, etc. all impact the time).
Tom