Title: List of India Twenty20 International cricket records
Content:  The best strike rate in an inning, when a minimum of 4 wickets are taken by the player, is by Steve Tikolo of Kenya during his spell of 4/2 in 1.2 overs against Scotland during the 2013 ICC World Twenty20 Qualifier at ICC Academy, Dubai, UAE. Chahar during his record breaking spell also recorded the best strike rate for an Indian bowler.
Title: Strike rate
Content:  Batting strike rate (s/r) is defined for a batsman as the average number of runs scored per 100 balls faced. The higher the strike rate, the more effective a batsman is at scoring quickly. In Test cricket, a batsman's strike rate is of secondary relevance to his ability to score runs without getting out. This means a Test batsman's most important statistic is generally considered to be his batting average, rather than his strike rate. In limited overs cricket, strike rates are of considerably more importance. Since each team only faces a limited number of balls in an innings, the faster a batsman scores, the more runs his team will be able to accumulate. Strike rates of over 150 are becoming common in Twenty20 cricket. Strike rate is probably considered by most as the key factor in a batsman in one day cricket. Accordingly, the batsmen with the higher strike rate, especially in Twenty20 matches, are more valued than those with a lesser strike rate.
Title: List of Bangladesh Twenty20 International cricket records
Content:  The best strike rate in an inning, when a minimum of 4 wickets are taken by the player, is by Steve Tikolo of Kenya during his spell of 4/2 in 1.2 overs against Scotland during the 2013 ICC World Twenty20 Qualifier at ICC Academy, Dubai, UAE. Shakib Al Hasan, Abdur Razzak and Mustafizur Rahman have the best strike rate among Bangladeshi bowlers.
Title: List of India Twenty20 International cricket records
Content:  Dwayne Smith of West Indies strike rate of 414.28 during his 29 off 7 balls against Bangladesh during 2007 ICC World Twenty20 is the world record for highest strike rate in an innings. Yuvraj Singh during his innings of 58 of 18 balls which included six sixes in an over off Stuart Broad and is the fastest fifty ever in a Twenty20 game  and Dinesh Karthik with his innings of 29* off 8 balls against Bangladesh in the final of the 2018 Nidahas Trophy holds the top position for an India player in this list.
Title: List of India Twenty20 International cricket records
Content:  A bowler's strike rate is the total number of balls they have bowled divided by the number of wickets they have taken. The top bowler with the best T20I career strike rate is Rashid Khan of Afghanistan with strike rate of 12.3 balls per wicket. Ashish Nehra is the Indian bowler with the lowest strike rate.
Title: List of England Twenty20 International cricket records
Content:  The best strike rate in an inning, when a minimum of 4 wickets are taken by the player, is by Steve Tikolo of Kenya during his spell of 4/2 in 1.2 overs against Scotland during the 2013 ICC World Twenty20 Qualifier at ICC Academy, Dubai, UAE. Chris Jordan has the best strike rate among English bowlers.
Title: List of Bangladesh One Day International cricket records
Content:  The best strike rate in an inning, when a minimum of 4 wickets are taken by the player, is shared by Sunil Dhaniram of Canada, Paul Collingwood of England and Virender Sehwag of Bangladesh when they achieved a strike rate of 4.2 balls per wicket. Rubel Hossain during his spell of 6/26 achieved the best strike rate for a Bangladeshi bowler.
Title: List of Australia Twenty20 International cricket records
Content:  The best strike rate in an inning, when a minimum of 4 wickets are taken by the player, is by Steve Tikolo of Kenya during his spell of 4/2 in 1.2 overs against Scotland during the 2013 ICC World Twenty20 Qualifier at ICC Academy, Dubai, UAE. Both Faulkner and Agar during their spells when they took five-wickets in an inning also recorded the best strike rate for an Aussie bowler.
Title: List of Pakistan Twenty20 International cricket records
Content:  Dwayne Smith of West Indies strike rate of 414.28 during his 29 off 7 balls against Bangladesh during 2007 ICC World Twenty20 is the world record for highest strike rate in an innings. Afridi with his innings of 25 off 7 balls against South Africa in October 2010 during the 2010 T20I series holds the top position for a Pakistan player in this list.
Title: List of West Indies One Day International cricket records
Content:  A bowler's strike rate is the total number of balls they have bowled divided by the number of wickets they have taken. The top bowler with the best ODI career strike rate is South Africa's Lungi Ngidi with strike rate of 23.2 balls per wicket. Andre Russell not only has the best batting strike rate among West Indians, he is the West Indian bowler as well with a strike rate of 32.7 balls per wicket.

Question: who had the best strike rate among batsmen who scored over 200 runs in the world cup?
Answer: Chris Gayle.
Rohit Sharma.