India have risen to No. 1 in the ODI rankings, while Australia toppled to fourth place after their defeat to Zimbabwe on Sunday.

Elton Chigumbura lifting his No. 10-ranked team to only their second success against Australia – the first in 31 years – has meant South Africa and Sri Lanka have leapfrogged the free-falling Australia, who were joint-No. 1 with India ahead of that match. India had equalled Australia’s points tally following their victory at Trent Bridge, in the third ODI against England on August 30.

However, the situation at the top remains quite fluid. India will retain their place at No. 1 if they beat England in the remaining two matches of the Royal London ODI series and Australia beat South Africa at least once over the coming week – either on Tuesday or, if they make the final, on Saturday. South Africa will move to the top if they win their two remaining league games and the subsequent final, even if India win the fourth and fifth ODIs.

Australia, too, have a chance at reclaiming No. 1 if they beat South Africa in their remaining league stage game and again in the final. Concurrently, though, India would have to lose at least one of their two ODIs to England.

India had been the No. 1 side when they visited New Zealand in January, but lost the top rank after failing to win a match there.