Kickball Day is held on April 17. This event in the second decade of the month april is annual.
Jackie Robinson Day on April 15 (United States);
East Meets West Day on April 25 (Many kinds of sports team hold annual East vs. West games. );
World Nordic Walking Day on May 16 (is a day of unified commemoration of the Nordic Walking Family around the world. It is for everyone, of all ages and abilities);