While following WI batting against SL in a T20I on Mar 6, one wondered if Russell’s 6 sixes and no fours was a record. It isn’t, but we can see the records here:
The devaluation of T20I match records is well under way. However, among “serious” matches the record would be Morgan’s 7 against SA. The next among serious matches would be Russell’s 6.
Let us look at the corresponding records for ODIs:
Here the record is 6 (less than the T20I record!) by Collingwood and Neesham. Raina is one with 5 sixes. Another was AD Mascarenhas, who scored 30 of his runs in 5 6s off an over from Yuvraj Singh.
And in Tests, the record is held by one of the rising tailend sloggers from India:
Umesh Yadav took over the record jointly held by Nixon Mclean, Flintoff and de Grandhomme. Further down, Keith Miller hit 3 sixes and no fours against India back in 1948. More recently, Southee and Bairstow also did this against India.
From India, others such as Kuruvilla, Shami and Sir Ravindra Jadeja have also tried their hand at this.
Footnote: NAM McLean was better known for his illustrious names (Nixon Alexei McNamara) than for his relatively modest performances.
India had a similar player named Napoleon Einstein: https://en.wikipedia.org/wiki/Napoleon_Einstein