Thread contains this info:
there is a download link near the bottom of go games
Linked page says:
Here you’ll find 50000 Japanese professional go games in SGF format, both as .tar.gz archive (26 MB) and as .7z archive (16 MB).
As AdamR points out, only 400 to 500 of these are on the 9x9. I’ve confirmed 7z archive contains individual SGF files. Hope this helps 