Sike “z4kr” Zhang is a Chinese professional Counter‑Strike player who has been among the top performers in his region. Over just more than six years on the pro scene, he has played in over 100 tournaments, competed in approximately 350 matches, and earned around US $47,000 in prize money.
He started his career in April 2019 with 8EASY, participating in several events and qualifiers, but without notable success. In September 2019 he joined Lynn Vision Gaming, where a new and more successful chapter began.
Shortly after the transition, he won his first major title at WESG 2019 China: Northern Circuit – Beijing. Before the year ended, he added gold medals at WESG 2019 China: Northern Circuit and WESG 2019 Greater China, silver at 5EPLAY Pro League – 2019 Season 4 (Week 3 and Week 4), and bronze at the Nantong Silk Road Esports Invitational 2019.
In the following three years, Zhang continued to deliver results for Lynn Vision. He collected championship titles at ThunderFire Asia Championships, CS:GO_ProHouse Wuxi Villa Cup Season 2, Hyperion x OEL Launch, Perfect World Arena Premier League Season 2 (Professional Division), and ESL Challenger League Season 43: Asia‑Pacific. He also earned silver medals at ImbaTV CSGO Professional League Season 1, CS:GO_ProHouse Wuxi Villa Cup Season 1, Funspark ULTI 2021: Asia Season 1, and eXTREMESLAND Festival 2022.
At the start of 2023, Zhang renewed his contract and continued to win. His notable victories include ESL Challenger League Seasons 44, 47, and 49: Asia, XSE Pro League 2023, Perfect World Arena Premier League Season 5: Professional Division, and CS Asia Championships 2023. He was also runner‑up at Perfect World Arena Premier League Season 3, ESL Challenger League Season 45 & 48: Asia, eXTREMESLAND 2023, and Asian Champions League 2025.
He also posted strong placements at several major tournaments, finishing 21–28th at ESL Pro League Season 18, 13–16th at IEM Sydney 2023, 20–22nd at PGL Major Copenhagen 2024, 9–12th at IEM Chengdu 2024, 4th at MESA Nomadic Masters Spring 2024, 20–22nd at ESL Pro League Season 21, and 13–16th at Intel Extreme Masters Dallas 2025.
Currently, Sike “z4kr” Zhang plays in the main CS2 lineup for Lynn Vision Gaming.