The evolving landscape of rugby union, shaped by rule changes that encourage faster and more dynamic gameplay, has redefined key performance indicators (KPIs) for team success. This study explores the role of linebreaks as a critical KPI by analysing 34 matches from the 2018/2019 season of a consistently high-performing team. We distinguish between dynamic linebreaks, occurring in open and unstructured phases of play, and static linebreaks, which emerge from set pieces such as scrums and lineouts. Using detailed match data and video analysis, our results reveal that dynamic linebreaks are strongly associated with larger score differentials, regardless of match location, emphasizing their decisive impact on team success. In contrast, static linebreaks are more effective in home games, suggesting a home-field advantage in executing structured plays. These findings underscore the growing importance of fast-paced, open-play strategies in modern rugby. By prioritizing dynamic play phases, teams can enhance their adaptability and offensive efficiency across various competitive environments. This study provides practical insights for coaches and performance analysts, offering a strategic framework to optimize attacking play and maximize success in professional rugby.
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