'Itsuka Dekiru Kara Kyou Dekiru' became the 18th single of Nogizaka46 in succession to top the Oricon weekly singles chart since the group's 2nd single 'Oide Shampoo' released in May 2012. With this, Nogizaka46 is ranked second idol group with the highest number of singles who successfully topped the Oricon weekly singles chart top under AKB48 with 36 singles.
The weekly sales of 'Itsuka Dekiru Kara Kyou Dekiru' decreased by 29,018 copies from 18th single 'Nigemizu [逃 げ 水]' which sold 880,018 copies in the first week.
For the Japanese version of Billboard, single 'Itsuka Dekiru Kara Kyou Dekiru' sold as many as 988,768 copies for the first week and also decreased from single 'Nigemizu' which sold 1,028,543 copies in a week.
Nogizaka46 single sales ranking in first week [Oricon]
Nigemizu: 880,018
Influencer: 874,528
Itsuka Dekiru Kara Kyou Dekiru: 851,000
Sayonara no Imi: 827,717
Harujion ga Sakukoro: 749,706
Haadshi de Summer: 728,189
Ima, Hanashitai Dareka ga Iru: 626,905
Taiyou Knock: 609,202
Inochi wa Utsukushii: 500,297
Nandome no Aozora ka: 478,788
Kidzuitara Kataomoi: 457,837
Natsu no Free & Easy: 421,622
Barrette: 395,127
Girl's Rule: 337,138
Kimi no Na wa Kibou: 242,053
Seifuku no Mannequin: 232,961
Hashire! Bicycle: 186,613
Oide, Shampoo: 155,677
Guru Guru Curtain: 136,309