ICC ODI Championship


The ICC ODI Championship is an international One Day International cricket competition run by the International Cricket Council. The competition is notional in that it is simply a ranking scheme overlaid on the regular ODI match schedule. After every ODI match, the two teams involved receive points based on a mathematical formula. Each team's points total is divided by their total number of matches played to give a rating, and all the teams are ranked in a table in order of rating.
By analogy to cricket batting averages, the points for winning an ODI match are always greater than the team's rating, increasing the rating, and the points for losing an ODI match are always less than the rating, reducing the rating. A drawn match between higher and lower rated teams will benefit the lower-rated team at the expense of the higher-rated team. An "average" team that wins as often as it loses while playing a mix of stronger and weaker teams should have a rating of 100.
, England lead the ICC ODI Championship with a rating of 127 from 38 weighted matches, while the lowest rated team, Papua New Guinea, has a rating of 0 from 14 weighted matches.

Current

Associate rankings

In late 2005, the International Cricket Council ranked the top non-Test nations from 11–30 to complement the Test nations' rankings in the ICC ODI Championship. The ICC used the results from the 2005 ICC Trophy and WCQS Division 2 competition to rank the nations.
These rankings were used to seed the initial stage of the global World Cricket League. Teams ranked 11–16 were placed into Division 1; teams 17–20 were placed into Division 2; teams 21–24 were placed into Division 3; the remaining teams were placed into the upper divisions of their respective regional qualifiers.
As of 19 April 2009 the top six associates gained one day status. Kenya and Ireland have both qualified to appear on the main rating table, Kenya from its existing status and Ireland for its two victories in the 2007 World Cup. Following their victory over Bangladesh in July 2010, the Netherlands joined the main table. Afghanistan, Canada and Scotland remain on the secondary table. In May 2009, the ICC added a rankings table for all associate members. This contained both global and regional placings. In June 2018, the four associates with ODI status were moved to the main ranking list.
Associate rankings according to ICC:

Historical ICC ODI Champions

The ICC provides ratings for the end of each month back to October 2002. This table lists the teams that have successively held the highest rating since that date, by whole month periods.
TeamStartEndTotal MonthsCumulative MonthsHighest Rating
October 2002January 20075252140
February 2007February 200711128
March 2007February 20081264130
March 2008May 200834127
June 2008December 2008771131
January 2009August 2009812127
September 2009August 201235106134
August 2012December 201255121
January 2013January 20141212124
January 2014August 20148114117
September 2014September 2014113113
October 2014October 20141115114
October 2014November 2014½13115
November 2014November 2014½14117
November 2014February 201726141129
February 2017February 2017114119
March 2017March 20174 days141118
March 2017September 2017620123
24 September 201727 September 20174 days14120
28 September 201731 September 20174 days20119
1 October 201717 October 201717 days15120
18 October 20171 February 2018424120
2 February 20181 May 2018318123
2 May 201824 June 20191419127
25 June 201929 June 20195 days18123
30 June 2019present1029127

In 2011, the ICC applied its rating system to results since 1981, providing ratings for the end of each month back to 1981, further indicating Australia's historical dominance in ODI Cricket with the highest number of months ranked first. The table only begins from 1981 as, prior to this date, there is not enough data available due to the infrequency of matches and the small number of competing teams in the earlier periods.
The teams that have successively held the highest rating since January 1981 till September 2002, by whole month periods, are:
The summary of teams that have held the highest rating since 1981 till present by whole month periods, are:

Trophy

The team at the top of the ICC ODI Championship has been awarded the ICC ODI Championship shield. Like a 2 euro coin, the shield features an inner circle of gold-coloured metal and is surrounded by a ring of silver-coloured metal. It was first presented in December 2002, when Australia's captain Ricky Ponting received the trophy.

Points calculations

Each team scores points based on the results of their matches over the last 3–4 years − all matches played in the 12–24 months since the May before last, plus all the matches played in the 24 months before that, for which the matches played and points earned both count half. Each May, the matches and points earned between 3 and 4 years ago are removed, and the matches and points earned between 1 and 2 years ago switch from 100% weighting to 50% weighting. For example, at May 2014, the matches played between May 2010 and May 2011 were removed, and the matches played between May 2012 and May 2013 switched to 50% weighting. This happens overnight, so can result in teams changing positions in the ranking table despite not playing.
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:
Match resultPoints earned
WinOpponent's rating + 50
TieOpponent's rating
LoseOpponent's rating − 50

If the gap between the ratings of the two teams before the match was at least 40 points, then:
Match resultPoints earned
Stronger team winsOwn rating + 10
Weaker team losesOwn rating − 10
Stronger team tiesOwn rating − 40
Weaker team tiesOwn rating + 40
Stronger team losesOwn rating − 90
Weaker team winsOwn rating + 90

See also: Detailed example