To output tracert to a file it's just as simple as adding > XXXX.txt to the end, if you want it to append to a file it's >> XXXX.txt
For example
Code:
tracert bbc.co.uk > trace.txt
will give you the traceroute in a file called trace.txt
If you repeated it with
Code:
tracert bbc.co.uk >> trace.txt
it would add a 2nd tracert to the same file.
Just loop that in a batch file 100 time (there's a few different methods) and you should have you file.