For discus athletes, it would be good news if the venue is located in a city near the equator. Because in these cities, they will be more likely to break the world record. Why is this?
There are many different interpretations of this. Generally speaking, the object near the equator is the farthest from the center of the earth, and the attraction to the earth is the smallest, where the centrifugal force of the moving object is the largest.
In addition, the region’s geodetic bias is zero, so not only discus throwers, but also long jump, triple jump and high jump, etc., it is easier to get athletes to achieve good results here.