ICC Men's T20I Team Rankings

The ICC Men's T20I Team Rankings is an international Twenty20 cricket rankings system of the International Cricket Council. After every Twenty20 International match, the two teams involved receive points based on a mathematical formula. The total of each team's points total is divided by the total number of matches to give a rating, and all teams are ranked on a table in order of rating. Teams need to have played at least eight T20I matches in the previous three to four years to remain in the rankings table.
World Champions India national [cricket team|India] currently lead the ICC Men's T20I team rankings, a position they have held since 21 February 2022.

Current rankings

Points calculations

Time period

Find the points earned from a match

Each time two teams play another match, the rankings table is updated as follows, based on the ratings of the teams immediately before they played. To determine the teams' new ratings after a particular match, first calculate the points earned from the match:
If the gap between the ratings of the two teams before the match was less than 40 points, then points will be as follows:

Match result	Points earned
Win	Opponent's rating + 50
Tie	Opponent's rating
Lose	Opponent's rating − 50

If the gap between the ratings of the two teams before the match was at least 40 points, then points will be as follows:

Match result	Points earned
Stronger team wins	Own rating + 10
Weaker team loses	Own rating − 10
Stronger team ties	Own rating − 40
Weaker team ties	Own rating + 40
Stronger team loses	Own rating − 90
Weaker team wins	Own rating + 90

Example

Suppose Team A, with an initial rating of 100, plays Team B. The table shows the points awarded to the two teams for 9 different initial ratings for B, and the three possible match results.
This illustrates that:

The winning team earns more points than the losing team.
Winning always earns a team 100 points more than losing, and 50 more than tying.
The total points earned by the two teams is always the same as the total initial ratings of the two teams.
The points earned by a winning team increases as the initial rating of the opposition increases, within the constraints of earning at least its own initial rating + 10, and no more than its own initial rating + 90. A winning team therefore always earns more points than its initial rating, increasing its overall average rating.
The points earned by a losing team increases as the initial rating of the opposition increases, within the constraints of earning at least its own initial rating − 90, and no more than its own initial rating − 10. A losing team therefore always earns fewer points than its initial rating, decreasing its overall average rating.
In a tie, the weaker team usually earns more points than the stronger team, reflecting the fact that a tie is a better result for the weaker team than the stronger team. Also, the stronger team will earn fewer points than its initial rating, decreasing its average, and the weaker team more points that its initial rating, increasing its average.
For a given result, the rule of how the two teams' points are calculated changes as the initial ratings change, from being based on teams' own ratings when one team is far stronger, to being based on the opponent's ratings when the teams are closely matched, back to being based on own ratings when the other team is far stronger. However, despite these sudden changes in the rule, the number of points awarded for each result changes smoothly as the initial ratings change.
Find the new ratings
Each team's rating is equal to its total points scored divided by the total matches played..
Add the match points scored to the points already scored, add one to the number of matches played, and determine the new rating.
Points earned by teams depend on the opponent's ratings, therefore this system needed to assign base ratings to teams when it started.
Historical rankings

ICC Men's T20I Team Rankings Leaders

This table lists the teams that have historically held the highest rating since the T20I rankings was introduced. In April 2018, the ICC decided to grant full T20I status to all its members. As a result, ratings of leading teams since 2018 have been considerably higher, and cannot be directly compared to those before that date.

Summary

The summary of teams that have held the highest rating by days, are:

Team	Total Days	Highest Rating
		273
	1,064	135
	884	286
	748	278
	574	132
	212	278
	42	137
	21	118