Group 1 - Zhang Shuihua signed a contract with a major sports brand, becoming their signed runner shortly after signing with a sports eyewear brand on her 35th birthday [1] - The signing with the sports eyewear brand on February 10 marked Zhang's first commercial collaboration since transitioning to a full-time runner, generating significant interest in the running community [1] - The rapid succession of endorsements highlights Zhang's growing prominence in the sports industry [1]