[48] Grimsby confirmed they would play both Port Vale and UAE Pro League side Al-Ain FC at the Real Club de Golf Campoamor Resort in Alicante.

[49] Win Draw Loss Fixtures Last updated: 10 February 2024 Source: Soccerway

Source: Soccerway On 22 June, the EFL League Two fixtures were released.

[59] Win Draw Loss Fixtures Grimsby were drawn away to Mansfield Town in the first round.

[60] Win Draw Loss Fixtures In the group stage, Grimsby Town were drawn into Northern Group F alongside Barnsley, Bradford City and Manchester City U21.