Website Enhancement （Mar 31st 2025 ） / Request for Credit Card Re-registration (from April 1st 2025)
DoubleBlue will be performing website enhancement for the r…
Notice of Introduction of Credit Card Identity Verification Service “3D Secure 2.0(from April 1st)
Thank you always for using DoubleBlue. DoubleBlue will intro…
The 31st JIN CUP Squash Tournament
JIN CUP, organized by “Sports Station Jin” will be held at D…
Notice of renewal opening and squash coat usage fee change
Squash Court Fee（per 10 minutes） Mon-Fri 10：00～18：00 480（+…
Regarding the change of consumption tax rate from October
Thank you always for enjoying Squash at doubleBlue. Due to c…