SCHEDULEDDate confidence: SCHEDULEDGiven as scheduledHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all SCHEDULED pins75% CONFIDENCEOverall confidence: 75%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or betterThe Tokyo Marathon Foundation's page gives Sunday 7 March 2027, and The Running Channel's[2] 2027 guide lists the same date.
The Tokyo Marathon, the first World Marathon Major of 2027, runs on Sunday 7 March 2027 for its 20th edition, with entries taken between 24 June and 28 August 2026.
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