«Mario Kart Tour Delayed to Summer 2019»(en inglés). 31 de enero de 2019. «Financial highlights from Nintendo reveal the game, which was originally slated to release before March 2019, has been pushed back to "summer 2019," which ranges between June and September in the Northern Hemisphere.»
«Nintendo of America official Mario Kart Tour announcement»(en inglés). 26 de junio de 2014. «The checkered flag has been raised and the finish line is near. A new mobile application is now in development: Mario Kart Tour! #MarioKartTour Releasing in the fiscal year ending in March 2019.»