The 2021 Sudirman Cup knockout stage was held at the Energia Areena in Vantaa, Finland, from 1 to 3 October 2021.
The knockout stage was the second and final stage of the competition, following the group stage. It began with the quarter-finals (1 October), followed by the semi-finals (2 October), and the final (3 October). The two highest-finished teams in 4 groups (8 teams in total) qualified to the knockout stage.[1]
Qualified teams edit
| Group | Winners | Runners-up |
|---|---|---|
| A |  China
|
 Thailand
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| B |  South Korea
|
 Chinese Taipei
|
| C |  Indonesia
|
 Denmark
|
| D |  Japan
|
 Malaysia
|
Bracket edit
The draw was held on 30 September 2021, after the Japan against Malaysia tie. The group runners-up were drawn against the group winners. Teams from the same group cannot be drawn against each other.
| Quarter-finals | Semi-finals | Final | ||||||||
| China | 3 | |||||||||
| Denmark | 2 | |||||||||
| China | 3 | |||||||||
| South Korea | 0 | |||||||||
| South Korea | 3 | |||||||||
| Thailand | 2 | |||||||||
| China | 3 | |||||||||
| Japan | 1 | |||||||||
| Malaysia | 3 | |||||||||
| Indonesia | 2 | |||||||||
| Malaysia | 1 | |||||||||
| Japan | 3 | |||||||||
| Chinese Taipei | 1 | |||||||||
| Japan | 3 | |||||||||
Quarter-finals edit
Quarter-final 1 edit
 China 3 |
Energia Areena Court 1 1 October 2021, 10:00 UTC+3 [2] |
 Denmark 2 |
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Quarter-final 2 edit
 South Korea 3 |
Energia Areena Court 2 1 October 2021, 10:00 UTC+3 [3] |
 Thailand 2 |
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Quarter-final 3 edit
 Malaysia 3 |
Energia Areena Court 2 1 October 2021, 16:00 UTC+3 [4] |
 Indonesia 2 |
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Quarter-final 4 edit
 Chinese Taipei 1 |
Energia Areena Court 1 1 October 2021, 16:00 UTC+3 [5] |
 Japan 3 |
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Semi-finals edit
Semi-final 1 edit
| China 3 |
Energia Areena Court 1 2 October 2021, 10:00 UTC+3 [6] |
South Korea 0 |
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Semi-final 2 edit
| Malaysia 1 |
Energia Areena Court 1 2 October 2021, 16:00 UTC+3 [7] |
Japan 3 |
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Final edit
| China 3 |
Energia Areena Court 1 3 October 2021, 13:00 UTC+3 [8] |
Japan 1 |
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