When I save the map to my computer, it is fine. The file Nathan sent to Gene is just as you sent it to Nathan.
As Justin said, don't print from the viewing pane through the USATF site - download the png to your computer, and print from there.
It does not help legibility when you use a blue background. I advocated for using color on maps, but the specs were for no color backgrounds, and no screens. I see both on your map. At a glance, the map is attractive, but too many light-blue lines and text. Copy that map on a black-and-white copier, and you won't see many aspects of the map. That is what our test was when agreeing to specs - it had to be legible when copied on a black-and-white copier. The camel got its nose under the tent.
I have no problem saying: "Too many people have taken advantage of the allowance of color on maps, to the extent they are less legible, not more". I didn't want full-color maps that looked like posters when I discussed color maps being allowed. However, that is what is happening. I wanted maps to use colors to be more clear, not artistic competitions. Sorry, Gene.