This is a list of songs that reached #1 on the RIAJ Digital Track Chart chart in Japan in 2010. The highest-selling digital singles in Japan are published by Recording Industry Association of Japan. PC downloads and ringtone downloads are not eligible for the chart, only cellphone downloads (Chaku-uta Full) count for the chart.
The chart week runs from Wednesday to Tuesday. The final week of 2009, starting December 29, was merged with the following week (12/30-1/5) due to New Year's celebrations (in a similar manner to Oricon).
Chart history Issue dateSongArtist(s)Reference(s)January 5"Hatsukoi"Masaharu FukuyamaJanuary 12"Butterfly"Kaela KimuraJanuary 19"Always"Mika NakashimaJanuary 26February 2"Butterfly"Kaela KimuraFebruary 9"Forever Love"Shota Shimizu x Miliyah KatoFebruary 16February 23"Best Friend"Kana NishinoMarch 2March 9March 16"Lion"YusukeMarch 23"Sakura"KetsumeishiMarch 30"Bye Bye"Miliyah KatoApril 6"Mata Kimi ni Koi Shiteru"Fuyumi SakamotoApril 13April 20"Daijōbu"HilcrhymeApril 27May 4"Tsubomi feat. Kusuo"leccaMay 11"Daijōbu"HilcrhymeMay 18"Aitakute Aitakute"Kana NishinoMay 25June 1"Loose Leaf"HilcrhymeJune 8June 15"Ring a Ding Dong"Kaela KimuraJune 22"Love Rain (Koi no Ame)"Toshinobu KubotaJune 29"Hello, Again (Mukashi Kara Aru Basho)"JujuJuly 6"Sunshine Girl"MoumoonJuly 13"Lollipop"Kumi KodaJuly 20"Moon"Ayumi HamasakiJuly 27"Ofutari Summer"KetsumeishiAugust 3"If"Kana NishinoAugust 17August 24"Heavy Rotation"AKB48August 31September 7"if"Kana NishinoSeptember 14"Motto Tsuyoku"ExileSeptember 21"Suki de, Suki de, Suki de."Kumi KodaSeptember 28"Motto Tsuyoku"ExileOctober 5October 12"I Wish for You"October 19"One Day"The RootlessOctober 26"Gee"Girls' GenerationNovember 2"Kimi tte"Kana NishinoNovember 9November 16November 23"Kono Yoru o Tomete yo"JujuNovember 30"Ryūsei"KobukuroDecember 7"Kono Yoru o Tomete yo"JujuDecember 14December 21"Can't Wait 'Til Christmas"Hikaru Utada
See also List of number one Reco-kyō Chart singles 2006–2009
References