It's top 1%, but quite under-impressive compared to how talented and impressive he actually is, which establishes the very low utility of resume evaluations.
I worked at a hedge fund and we rejected people with more impressive resumes, and it only takes about 6 interviews before you realize how low the correlation is between how someone looks on paper and how smart they actually are.
perhaps there's a quasi-inverse correlation ... e.g., superstars like sergey don't care about putting in a ton of time to polish up their resume and make it sound all fancy and stuff (they're busy building google in their dorm room), whereas people who are good (but not great) make all sorts of efforts to polish up their resume and look their best.
Getting first-author papers in both VLDB and ACM SIGMOD your second year as a grad student (which means they were probably submitted his first year) is phenomenal.
I worked at a hedge fund and we rejected people with more impressive resumes, and it only takes about 6 interviews before you realize how low the correlation is between how someone looks on paper and how smart they actually are.