Brief - The attached analysis shows side by side comparisons of the tracks through the water for all the competitors in the 2019 Marion to Bermuda race. Select the yacht in the left column to show her plot. Each image illustrates, for one boat, two tracks:
The images are saved from the Expedition display. A few comments on that display:
H0 GRIB file - The wind file being used for optimal routing is a string of "Hour Zero" models of the wind as created by NOAA using observations. These are NOT forecasts. Each Hour Zero record is concatenated with subsequent records throughout the race. Because H0 does not use forecasts the file used for optimal routing of a boat is not available until after the boat finishes.