One or two referees will call the athletes to call the roll at the registration office and strictly check whether the athletes' numbers, clothes, spikes, hands and fingers are covered with tape. Then lead the athletes to the competition venue. After entering the venue, announce the order and matters needing attention of the trial jump to the athletes, and organize the athletes to practice the trial throw once or twice in turn.
Record the call sign that the referee is responsible for during the competition, and record the test throw results in the long-distance record table of field events. After the game, carefully check the results and rankings, and hand them over to the throwing referee and the venue referee for signature.
The referee (the leader of the infield referee group) is responsible for checking whether there is any foul in the throwing area and kissing the national flag. Try to throw the white flag up successfully, throw the red flag up if you fail, and don't try to throw the red flag flat again. Two referees are responsible for measuring the results, and one of them is responsible for the results bulletin board in the infield. When measuring the results, a referee must check and check in the starting throwing area.
Rules and judgment methods of throwing events;
1, draw lots to decide the throwing order of athletes.
2. If there are more than 8 athletes, no one is allowed to try throwing 3 times. The top 8 athletes with the best effective results can try to throw three times after entering the final, and the order of trying to throw should be opposite to the order of the first three attempts. When the number of players is only 8 or less, each player can try to throw 6 times.
3. Before the start of the competition, athletes can enter the competition venue to try throwing, and the practice should be carried out in the order of drawing lots and under the supervision of the referee.
The shot put should be pushed from the throwing circle.
5. Don't use bandages or adhesive tapes on your hands, except when you are injured and need dressing. Gloves are not allowed; In order to better hold the shot put, athletes can use a suitable substance (such as magnesium powder), but only by hand; In order to prevent wrist injury, athletes can put a bandage on their wrists; In order to prevent spinal injury, athletes can use belts; Athletes are not allowed to spray any substance in the circle or sole.
6. After the athlete enters the circle and starts throwing, if any part of the athlete's body touches the ground outside the circle or touches the toe board, or pushes the shot put thrown in an irregular way, it will be judged as a throwing failure.
7. The shot put must completely fall within the angle line of the landing area.
8. After each effective trial throw, the results should be measured immediately. Take a straight line from the nearest point of the trajectory of the shot put circle to the inner edge of the throwing circle, and the measuring line should pass through the center of the throwing circle.
9. Athletes can only leave the throwing circle after the equipment falls to the ground. You must leave the throwing circle from behind the white line.
10, each athlete's best throwing performance, including the trial throwing performance due to the same result as the first place in the final ranking, should be regarded as his final decision.