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select submission_date, (select count(distinct hacker_id) from submissions s2 where s2.submission_date = s1.submission_date and (select count(distinct s3.submission_date) from submissions s3 where s3.hacker_id = s2.hacker_id and s3.submission_date < s1.submission_date) = datediff(s1.submission_date, '2016-03-01')), (select hacker_id from submissions s2 where s2.submission_date = s1.submission_date group by hacker_id order by count(submission_id) desc, hacker_id limit 1) as hacklimit, (select name from hackers where hacker_id = hacklimit) from (select distinct submission_date from submissions) s1 group by submission_date;