Australian pace spearhead in Tests, Pat Cummins in his earlier days used to bowl at average speed of 135 km/hr. But his hard work must be appreciated. He has improved his running speed and bowling speed.
Today, Pat Cummins is ranked No 1 in Tests and his average speed has increased by 6 to 7 miles km/hr. Cummins bowled his fastest ball in IPL 2017(153.56 km/hr).