Qualifier

The PolyU CTF Qualifier 2025 will be organized on 3 Oct to 5 Oct 2025. It will be a 48-hours online event, please refer to the following poster for more information.

(Prize Presentation Ceremony held on 22-Oct-2025)

Please register here.

The PolyU CTF Qualifier 2024 was held on 27 Sep to 29 Sep 2024. It was a 48-hours online event, please refer to the following poster for more information.

(Prize Presentation Ceremony held on 18-Oct-2024)

You can also register here.

The PolyU CTF Qualifier 2023 was held on 22 Sep to 24 Sep 2023. It was a 48-hours online event, please refer to the following poster for more information.

The PolyU CTF Qualifier 2022 was held on 2 Oct 2022, please find the below poster for your information.

The PolyU CTF Qualifier 2021 was held on 30 Oct 2021, please find the below poster for your information.

The PolyU CTF Qualifier 2020 was held on 9 Jan 2021, please find the below poster for your information.