Cricket Guides · 5 min read · English
When a side is all out before using its full overs, the competition’s Net Run Rate (NRR) rule may count the full quota in the overs faced. Under current ICC Men’s T20 World Cup 2026 conditions, it does. A side all out at 17.3 in a 20-over innings is treated as having faced 20 overs for NRR—not 17.3 or 17.5.
This treatment can make an early dismissal more damaging to NRR. Check your tournament’s rule; local formats and rain-affected matches may differ.
On This Page
- The Competition Calculation
- Read Overs as Six-Ball Groups
- Worked Example: All Out in a 20-Over Match
- Why “All Out” Matters to the Denominator
- Avoid Three Common NRR Errors
- Where Fours & Sixes Fits
- Questions Organisers Ask
- Related Guides
- Official References
The Competition Calculation
NRR is the difference between a team’s average runs per over scored and its average runs per over conceded across the competition. In simple terms:
NRR = (competition runs scored ÷ competition overs faced) − (competition runs conceded ÷ competition overs bowled)
Use aggregate totals for the matches counted. Averaging match NRRs gives short and long innings equal weight despite different overs.
In the ICC Men’s T20 World Cup 2026 playing conditions, Clause 16.10.7 says that if a side is all out before its full quota, NRR uses the full quota it was entitled to face. The same clause describes the aggregate competition calculation. These are event-specific conditions, not a universal rule for every club competition. Read the ICC Men’s T20 World Cup 2026 Playing Conditions and your tournament regulations.
Read Overs as Six-Ball Groups
Cricket notation uses the digit after the point for balls, not tenths of an over. One over contains six valid balls. So:
| Notation | Meaning | Overs for arithmetic |
|---|---|---|
| 17.3 | 17 overs and 3 balls = 105 balls | 17.5 |
| 17.5 | 17 overs and 5 balls = 107 balls | 17.8333… |
| 18.0 | 18 overs = 108 balls | 18.0 |
The conversion is completed overs + balls ÷ 6. Therefore, 17.3 overs equals 17 + 3/6 = 17.5 overs. It does not equal 17.3 decimal overs. Adding the over notation as though the digits were decimals gives the wrong run rate.
Worked Example: All Out in a 20-Over Match
Suppose Team A scores 87 all out in 17.3 overs in a scheduled 20-over match. Under the cited ICC T20 NRR rule, use 20 overs for the runs-per-over calculation because Team A was all out before its full quota.
Team A run rate for this innings = 87 ÷ 20 = 4.35 runs per over
If a calculation used the actual 17.3 notation as 17.5 overs, the rate would instead be 87 ÷ 17.5 = 4.97. If someone read it incorrectly as 17.3 decimal overs, the rate would be about 5.03. Neither is the right NRR denominator under the stated all-out rule for this example.
Now suppose Team A later scores 150 in its full 20 overs, and across these two matches concedes 100 in 20 overs and 90 in 20 overs. Its aggregate NRR would be:
- Runs scored: 87 + 150 = 237
- Overs faced for NRR: 20 + 20 = 40
- Runs conceded: 100 + 90 = 190
- Overs bowled: 20 + 20 = 40
- NRR: (237 ÷ 40) − (190 ÷ 40) = 5.925 − 4.75 = +1.175
The competition rules determine which matches and revised or abandoned results count.
Why “All Out” Matters to the Denominator
The full-quota treatment prevents an early all-out from inflating the scoring rate. If a side is not all out, actual valid balls normally determine overs faced, subject to competition conditions.
Do not automatically apply the all-out rule to every innings that ends early. A target reached, reduced overs or interruption can follow different clauses. Rain and DLS treatment are competition-specific; use the organiser’s published conditions and official calculation.
Avoid Three Common NRR Errors
- Treating over notation as decimals. Convert balls to sixths of an over.
- Using the actual early dismissal overs for every NRR rule. Under the cited ICC T20 rule, use the full quota when the side is all out early.
- Averaging match NRR values. Use aggregate runs and overs across the matches counted by that competition.
The order of tie-breakers also varies. NRR may be used only after points, wins or head-to-head, depending on the competition. The tournament handbook is the authority for how a table is ranked.
Where Fours & Sixes Fits
Fours & Sixes can organise tournament fixtures, results and standings using configured rules. Its NRR calculator is a separate website tool. The tournaments feature organises fixtures and results, while the Match Centre displays shared match scorecards. Check all-out and rain rules before using a calculator result for an official table.
Questions Organisers Ask
If a Team Is All Out at 17.3 in a 20-Over Game, Is That 17.3 or 17.5 Overs?
The notation means 17 overs and 3 balls, which is 17.5 overs for ordinary decimal arithmetic. Under the cited ICC T20 NRR rule, however, a side all out before its full quota uses the full 20 overs for NRR.
Is NRR the Average of Each Match’s NRR?
No. Use aggregate runs scored and conceded divided by aggregate overs faced and bowled for the matches counted by the competition. A simple average of match NRRs can weight different innings lengths incorrectly.
Does This Rule Apply to Every Tournament?
No. The full-quota wording cited here comes from ICC Men’s T20 World Cup conditions. Local and other format rules can vary. Check the tournament regulations, especially for rain, revised overs, tied matches and no-results.