In June 2024, Estonia’s Sahil Chauhan achieved the rare feat of scoring the fastest T20I century. He achieved this feat against Cyprus and took just 27 balls to reach the three figure mark. He overtook the previous record set by Jan Nicol Loftie-Eaton of Namibia, who had scored a century in 33 balls. Chauhan’s innings was laced by a whopping 18 sixes and this is also the record for most sixes in a T20I game by a batter. 

Keeping the associated nations players out of the list and focusing on the full time Test playing nations, Zimbabwe’s Sikandar Raza tops the list with his 33-ball century against Gambia. He achieved this milestone in October 2024 and remained unbeaten on 133 off 43 balls. His innings was comprised of 7 fours and 15 sixes as Zimbabwe went onto post their highest T20I total, thanks to Raza’s innings. 

See Also: Tim David scores fastest T20I century by an Australian

Fastest T20I centuries between two full time Test playing nations

Taking two full time Test playing nations into contention, the list is topped by none other than South Africa’s power hitter David Miller. Miller scored a 35-ball century against Bangladesh in Potchefstroom in October 2017. He remained unbeaten on 101 off just 36 deliveries with 7 boundaries and nine maximums as South Africa posted 224 and won the game by 83 runs. This was also Miller's maiden hundred in T20Is and brought up in some style.  He ended with a strike rate of 280.56 against the experienced bowling lineup of Bangladesh. With this win, South Africa managed to whitewash touring Bangladesh in Tests, ODIs and T20Is. 

Next to Miller is India’s ODI captain, Rohit Sharma, who scored the fastest century for India in T20Is in December 2017. He achieved this feat against Sri Lanka by scoring a hundred in just 35 deliveries in Indore. He ended up with a score of 118 in just 43 deliveries comprised of 12 fours and 10 sixes and strike rate of 274.41.