{"version":"1.0","type":"rich","title":"Boston Marathon 2018 Level 4 Plan","description":"This visualization presents a runner’s training plan for the Boston Marathon 2018 as a calendar heatmap, generated from an iCalendar export. Each day is color-coded by workout type (easy run, tempo, intervals, rest) and labeled with the scheduled activity summary. The example uses the raw ICS data to demonstrate parsing calendar events and mapping them to a visual timeline, highlighting the structure of a 16-week marathon training cycle.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-1b4036607737cdc12b726cd16ed96c7d?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}