In Perth, England scored 403 and 218, Root's scores 20 and 14, while Australia made 662/9 declared, winning the match and the series before tea on the final day. In the final match, he retired at 59 in the second innings after succumbing to gastroenteritis. He failed to convert any of his five half-centuries into centuries in the series. His next century did not come until 10 September 2018 against India at The Oval in the second innings, where Alastair Cook also scored a century on his final test match. England drew 1-1 at home to Pakistan in a 2 match series. England bounced back and beat India 4-1. Root failed to make a score in the first 4 tests, but scored 125 in the last test. This was his first century of 2018 after going without a century in the last 3 test series (Australia, New Zealand and Pakistan). This was also Root's last game with former captain Alistair Cook. Root impressed in the preceding ODI series against India, scoring 217 runs, which included two back-to-back centuries. In 2018 ODIs, he scored a total of 800 runs from 19 innings. Root became the first English captain to win a test series in Sri Lanka since 2001, thus ending a run of 17 series in Sri Lanka without a win. He scored 124 in the 2nd test to secure a series win; his first ever test series away win as captain. This was also the first away test series win England had won since 2016. In April 2019, he was named in England's squad for the 2019 Cricket World Cup. He had a good start to the tournament, scoring two centuries (against Pakistan and West Indies) and three fifties in England's first six matches. On 21 June 2019, in the match against Sri Lanka, Root played in his 250th international match for England. He was named in the 'Team of the Tournament' for the 2019 World Cup by the ICC. They stated that "England's run machine over the years, Joe Root was the glue that held their famed batting together through the tournament. The Yorkshire batsman finished as the fifth highest run-scorer of the tournament, with 556 runs from 11 innings. Root's flawless technique and ability to keep the scoreboard moving by rotating the strike and finding the boundaries when required makes him a perfect No.3 in this line-up". Root captained England in the 2019 Ashes Series, as England and Australia drew 2-2 with Australia retaining the Ashes. Root's batting position was widely discussed in the build-up to the series, with Root eventually moving up the order to bat at three.