At the Tokyo Stadium in Chofu City, Tokyo, where the five modern pentathlons of the Tokyo Olympics are held, a large amount of ice is thrown in so that the water temperature of the pool on the pitch does not rise while the strong sunlight shines. I did.
The modern pentathlon is a competition in which one person performs "laser run", which is a compound event of "fencing", "swimming", "equestrian", "running" and "shooting".
At the venue, Tokyo Stadium, pools, equestrian obstacles, and fencing pistes are usually set up on the pitch where soccer and rugby are played so that all events can be played.
Of these, the special 25-meter pool does not have a function to adjust the water temperature, so the staff throws a large amount of ice in full force 1 hour and 45 minutes before the start of the competition so that the water temperature does not rise while the strong sunlight shines. The we.
According to the person in charge of the organizing committee, the rule book stipulates that the water temperature of the pool is 25 to 28 degrees Celsius, and on the 6th, it was adjusted by adding ice to 27 degrees Celsius, which is easy for athletes to swim. ..