Group 1 - The core viewpoint of the articles highlights the impressive performance and potential of 12-year-old Chinese swimmer Yu Zidi, who has advanced to the finals of the women's 200m individual medley at the 2025 Singapore Swimming Championships [1][2]. - Yu Zidi achieved a time of 2 minutes 11.90 seconds in the preliminary round and improved to 2 minutes 10.22 seconds in the semifinals, securing her place in the finals [1]. - The articles emphasize Yu Zidi's balanced skills across all four swimming strokes, making her a strong contender in both the women's 200m and 400m individual medley events [2]. Group 2 - Yu Zidi began her swimming journey at the age of 6 and faced challenges, including a moment of considering quitting due to pressure in 2024, but was inspired by her predecessor Ye Shiwen [2]. - In addition to the 200m individual medley final, Yu Zidi is set to compete in the women's 200m butterfly preliminaries on July 30 and the women's 400m individual medley preliminaries on August 3, facing tough competition [2]. - The articles convey Yu Zidi's awareness of the intense competition at the world-class level and her determination to perform her best despite the pressure [2].