You can consider that there are international badminton tournaments all year round

European Schedule
Arctic Open (500 series)
Denmark Open (750 series)
French Open (750 series)
These took place continuously over three weeks, and An Se-young did not participate in the Arctic Open.
Additionally, there were two 100-series tournaments during this period.
Some Korean doubles teams participated here and won championships.
Players who were eliminated in the Round of 32 or Round of 16 on Tuesday or Wednesday move immediately to manage their condition.
Players who made it to the finals on Sunday have to fly out after everything is finished. Since they have to compete again starting Tuesday, those who reached the finals are given until Wednesday; you can't maintain peak condition indefinitely.
Being eliminated early is actually an advantage for managing one's condition.