u/Cheztempo

Getting ready for Chicago this weekend. I’ve done a couple chi’s before, I know my watch is going to be off for the first half, take manual splits etc. But has anyone played around with GPS settings to get accurate splits during a downtown marathon? Seems like for how advanced these watches have gotten, we should be able to figure out the skyscraper problem. Any advice is appreciated! Garmin forerunner 970 for reference