Test, ODI and T20: A Beginner’s Guide to Cricket’s Three Formats
New cricket fans often get confused within the first week. One match lasts five days and ends in a draw. Another finishes in three and a half hours. A third takes most of a day. All three are cricket, but they are played under different rules and reward different skills. Understanding the three international formats makes every match easier to follow and far more enjoyable.
Test cricket: the original format
Test cricket is the oldest form of the game, first played between England and Australia in 1877.
- Length: up to five days, with about 90 overs per day.
- Innings: each team bats twice.
- Result: a win, a loss, a draw or, very rarely, a tie.
A draw happens when time runs out before either side completes a win. This surprises new fans, but it is part of the strategy. A team that is behind can still “save” a match by batting for a long time. Test cricket rewards patience, technique and stamina. Bowlers must take 20 wickets to win, so quality bowling matters as much as batting.
One Day Internationals (ODI)
ODIs began in 1971 and brought a definite result in a single day.
- Length: 50 overs per side, around seven to eight hours.
- Innings: one per team.
- Result: almost always a win or loss. Rain-affected matches use the DLS method to set a revised target.
ODIs balance attack and defence. Batters often build carefully in the middle overs and accelerate at the end. Fielding restrictions, known as powerplays, change during the innings and shape the scoring pattern. The ICC Cricket World Cup is played in this format.
Twenty20 (T20)
T20 arrived in professional cricket in 2003 and became the most popular format in the world.
- Length: 20 overs per side, about three to three and a half hours.
- Innings: one per team.
- Result: a win or loss. Tied matches are decided by a Super Over.
With so few overs, every ball counts. Batters attack from the start, and bowlers rely on variations such as slower balls and yorkers. The first six overs are a powerplay, with only two fielders allowed outside the 30-yard circle. Franchise leagues, including the BPL and the IPL, use this format.
Quick comparison
| Test | ODI | T20 | |
|---|---|---|---|
| Overs per side | Unlimited (about 90 per day) | 50 | 20 |
| Innings per team | 2 | 1 | 1 |
| Typical duration | Up to 5 days | 7–8 hours | About 3 hours |
| Draw possible? | Yes | No (No result if rain) | No |
| Main skill | Patience and technique | Balance and pacing | Power and innovation |
How to follow each format
For Tests, watch the session-by-session story. Track the lead, the number of wickets left and the overs remaining on day five.
For ODIs, keep an eye on the required run rate in the second innings and on how many wickets the chasing side still has in hand.
For T20s, focus on the powerplay score and the death overs (16–20), where matches are usually won or lost.
Which format should a new fan start with?
Start with T20. It is short, easy to follow and full of action. Once you understand overs, wickets and run rates, move to ODIs. When you are ready to appreciate strategy, a close Test match on its final day is one of the most gripping things in sport.
Final thought
Three formats, one game. Each tells a different kind of story, and knowing the rules behind them helps you enjoy every match. Find more rules, explainers and match coverage on cricket news and guides, and if you need trusted contacts, see the 9wicket cricket agent list.