Thank you!We don't know the course 100% yet, but if the HM course is the same as 2022, then there are four hills totaling ~80 ft gain according to my Garmin data from last year.
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One under the water at the Contemporary, one on the on-ramp at World Dr to EPCOT center drive, one on EPCOT center drive, and one heading towards EPCOT just off EPCOT center drive (the last three are within miles 10-11.5). By in large the course is considered flat.