4. Lesser number of days between double centuries

It took Kohli some time to get his first double century in Tests. But after he did that, he made a habit of scoring double centuries. He is the first player to get double centuries in four back-to-back series. His first six Test 200s came in a space of 18 months.
Kohli got that in 499 days and broke Don Bradman’s record, who got it in 581 days. Kohli’s first five 200s came in a space of 492 days. This year Kohli got his 7th double century. He also became the first Indian skipper to get 250+. Kohli’s 1st and 7th double century came in space of 1176 days.
3. 995 runs scored in 10 ODIs

Between 2017 and 2018, Kohli had the greatest time in ODIs. In 15 innings, Kohli scored 1416 runs at an average of 128.72 which included 8 centuries and 3 fifties. He also had two 150+ score and only one under 30.
During this period, Kohli had the aggregate of 995 runs at an average of 142.14 from 10 ODIs. The 15 innings streak started from 2017 New Zealand series to 3rd ODI against West Indies in 2018. Kohli even got the record of aggregate of more than 860 in any consecutive 10 innings.