Test Series Structure: How International Test Cricket Is Organised
Test cricket series are organised across bilateral tours and major championships, with the ICC World Test Championship providing an overarching competitive structure to a format that previously lacked one.
The Bilateral Tour System
Test cricket series have traditionally been organised through bilateral tours — one country's team travelling to another for a series of 2-5 Test matches, sometimes combined with white-ball matches. The bilateral tour calendar is set by the ICC's Future Tours Programme (FTP), which schedules international tours years in advance to ensure all Full Member countries have regular home and away series. The FTP balances commercial interests (high-profile series like Ashes, India vs. Pakistan, or India vs. England) with the development requirements of emerging cricket nations. A typical bilateral Test series is 3-5 Tests — 5-Test series are reserved for the major touring fixtures like the Ashes, whereas most bilateral series between other nations are 2 or 3 Tests.
The ICC World Test Championship
The ICC World Test Championship (WTC) was introduced in 2019 to provide a competitive structure for Test cricket that determines a 'World Test Champion' through a cycle of bilateral series. Each Test series within the WTC cycle awards points to teams — points are allocated based on match results (win, draw, loss) within the series. After each two-year cycle, the two top-ranked teams by percentage points play a WTC Final at a neutral venue, with the winner crowned World Test Champion. India and New Zealand contested the first WTC Final in 2021 (New Zealand won); India and Australia contested the 2023 WTC Final (Australia won). The WTC has given bilateral series a competitive significance they previously lacked — a Test loss now has ranking implications beyond just the series scoreline.
Number of Tests in Modern International Cricket
The total number of Test matches played annually has remained relatively stable at 100-130 per year across all Full Member nations, though the distribution between nations is unequal. India plays the most valuable Test series (in broadcast terms), England and Australia play the most total Test matches in a year. Smaller Test nations like Zimbabwe, Bangladesh, and Ireland play fewer Tests per year due to reduced commercial interest and fewer bilateral series commitments from major nations. The ICC's 2019-2023 WTC cycle demonstrated that bilateral series with WTC points stakes attracted better playing standards and more competitive cricket than equivalent series without championship context — attendance and broadcast numbers for WTC-relevant series showed measurable increases.
Frequently asked questions
How are points calculated in the ICC World Test Championship?
In the current WTC cycle, points are awarded per match result: a win earns 12 points, a draw earns 4 points, and a loss earns 0 points. The points percentage (PCT) is calculated by dividing points earned by maximum possible points in all matches played — this accounts for the different number of Tests played by different nations in the cycle. A nation that plays fewer series is not disadvantaged for having played fewer matches; what matters is their win percentage across the matches they do play. The top two nations by PCT at the end of the cycle qualify for the WTC Final. Rain-affected matches (where a draw results from unplayable conditions rather than competitive play) are handled by deducting points from the maximum possible based on the amount of play lost.
What is the longest-running bilateral Test series other than the Ashes?
The series between England and the West Indies — first played in 1928 — is the second-longest-running bilateral Test series, predating many of cricket's major bilateral rivalries. India and England first played Tests in 1932; India and Australia first played in 1947-48. The series between Australia and the West Indies — played since 1930-31 — is among cricket's great traditional rivalries, featuring some of the greatest fast bowling in cricket history (Lillee-Thomson vs. Roberts-Holding-Garner-Marshall). The Pakistan vs. India Test series, which holds the highest audience globally among bilateral cricket, has been played far less frequently due to political tension between the two countries — meaning the historical records are based on fewer matches than the rivalry's significance would suggest.
Is there a risk that the WTC weakens bilateral series?
The WTC has actually been credited with strengthening bilateral series, not weakening them. Before the WTC, a series between England and New Zealand carried relatively low stakes once one team had won the series — the remaining Tests were academic. With WTC points, every Test in every series has championship significance regardless of the series scoreline. The risk identified by critics is different: that the WTC's point system might encourage teams to play conservatively (prioritising draws over bold play) to protect their WTC position. Data from the first two WTC cycles suggests this hasn't occurred to a significant degree — the positive-play incentives (more points for wins than draws) have generally encouraged attacking cricket, though specific high-pressure games have seen more conservative field settings and play.