To create a fair badminton tournament draw, choose a draw size equal to the smallest power of two that fits your entries (8, 16, 32, or 64), calculate the number of byes, place the seeded players in fixed positions so the strongest entries are kept apart until the later rounds, give byes to the seeds first, and then place all remaining players by random draw. For group formats, spread seeds across groups, make groups of three to five, and publish tiebreak rules before play starts. A transparent, well-explained draw prevents disputes and keeps the competition fair.
This guide explains knockout draws, byes, seeding, round-robin groups, tiebreakers, doubles considerations, and the mistakes organizers most often make.
Knockout draws step by step
1. Choose the draw size. Use the smallest power of two that is equal to or greater than the number of entries. For 13 entries, use a 16 draw; for 20 entries, use a 32 draw.
2. Calculate byes. Byes equal the draw size minus the number of entries. With 13 entries in a 16 draw, there are 3 byes. A player with a bye advances to the second round without playing.
3. Decide the number of seeds. Local events often seed 2 players in a 16 draw and 4 in a 32 draw, while larger events seed more. Follow any regulations your association sets.
4. Place the seeds. Seed 1 goes at the top line of the draw and seed 2 at the bottom line. Seeds 3 and 4 are drawn by lot into positions in the two remaining quarters, and further seeds are spread into different eighths.
5. Allocate byes. Give byes to the seeds first, in seeding order, then spread any remaining byes evenly across the halves and quarters of the draw.
6. Draw the rest. Place the remaining players randomly into the empty lines, using a physical draw or tournament software.
7. Publish the draw. Share it with players before the event so errors can be spotted early.
Draw sizes, byes, and rounds
| Entries | Draw size | Byes | Rounds | Total matches |
|---|---|---|---|---|
| 6 | 8 | 2 | 3 | 5 |
| 11 | 16 | 5 | 4 | 10 |
| 16 | 16 | 0 | 4 | 15 |
| 24 | 32 | 8 | 5 | 23 |
| 40 | 64 | 24 | 6 | 39 |
In a single knockout, total matches always equal entries minus one, because every match eliminates exactly one player or pair.
How to choose seeds
Use rankings. National or regional rankings are the fairest basis for seeding when they exist.
Use results. For club events without rankings, recent tournament results or league standings can guide seeding.
Be consistent. Apply the same criteria to every event and explain them if asked.
Doubles seeding. Seed pairs based on combined rankings or recent results as a partnership.
Round-robin groups
Group size. Groups of three to five work best. A group of 4 produces 6 matches, and a group of 5 produces 10. Larger groups take much longer.
Spread the seeds. Place the top seeds in different groups, then draw the remaining players randomly.
Separate clubmates or countries. Where regulations allow, keep players from the same club apart in groups.
Order of play. Schedule matches so no player plays twice in a row where possible. A common approach for a group of 4 (A, B, C, D) is A v B and C v D, then A v C and B v D, then A v D and B v C.
Advancing to knockouts. Decide in advance how many players qualify from each group, typically the top one or two, and how they are placed in the knockout draw so group winners do not meet each other immediately.
Tiebreakers for groups
Publish tiebreak rules before the event. A common order, similar to the approach used in many BWF events, is:
1. Matches won. The player or pair with the most match wins ranks higher.
2. Head-to-head. If two are tied, the winner of their match ranks higher.
3. Game difference. If three or more are tied, compare games won minus games lost among all group matches.
4. Point difference. If still tied, compare points won minus points lost.
5. Drawing lots. As a last resort, decide by lot.
Doubles and mixed draws
Confirm pairs first. Make sure all pairs are confirmed before making the draw to avoid last-minute changes.
Handle players without partners. Some events pair them up before the draw. Do this consistently and transparently.
Watch for clashes. Players entered in several events should not be scheduled to play two matches at once. Check draws together when building the schedule.
Tools for making draws
Tournament software. Dedicated tournament software can seed, draw, schedule, and record results automatically.
Spreadsheets. For small events, a spreadsheet with draw templates works well.
Paper draws. Drawing names from a container in front of witnesses is simple and transparent.
Handling withdrawals and late changes
Before the draw. Simply remove the entry and recalculate draw size and byes.
After the draw, before play. Many organizers replace a withdrawn player with a reserve or, if there is none, give the opponent a walkover. If a seed withdraws, follow your published rules, which may move another player into that position.
During the event. A player who withdraws mid-tournament usually forfeits remaining matches. In groups, decide in advance whether their completed results still count.
Record everything. Note each change and the reason on the draw sheet so decisions are transparent.
Common draw mistakes
Wrong draw size. Using a 32 draw for 12 entries creates too many byes and wastes a round.
Byes bunched in one area. Clustered byes make one section of the draw much easier. Spread them evenly.
Seeds meeting early. Incorrect seed placement can pit the top two players against each other in an early round.
No published tiebreakers. Deciding tiebreak rules after the event invites disputes.
Late changes. Changing the draw after publication should be avoided except for withdrawals, and any changes should follow clear rules.
Ignoring multi-event players. Players in singles, doubles, and mixed need schedules that avoid clashes.
A note on the rulebook
Sanctioned tournaments must follow the draw and seeding regulations of the Badminton World Federation or the national association responsible for the event, which set the number of seeds, their positions, and procedures for byes and withdrawals. Local and club events can use simpler methods, but they should publish their approach in advance and apply it consistently.
Frequently asked questions
How do you calculate byes in a badminton draw?
Subtract the number of entries from the draw size. For example, 13 entries in a 16 draw means 3 byes, which are usually given to the top seeds first.
Where do seeds go in a badminton draw?
Seed 1 goes at the top of the draw and seed 2 at the bottom. Seeds 3 and 4 are drawn by lot into positions in the remaining quarters so the top seeds cannot meet until the later rounds.
What is the best group size for round robin?
Groups of three to five are usually best. They give each player several matches without making the schedule too long.
