Data analysis of financial burden index through KBO League FA pitcher's performance and contract amount size

Semin Kim, Kangsoo You


Due to the recent pandemic of COVID-19, sports events around the world are being hit hard in 2020. However, with the KBO League having been opened even though it is late, it has attracted the attention of baseball fans around the world as it becomes an overseas broadcast. However, since the Republic of Korea is also affected by the global economic crisis, the financial burden of professional baseball teams that rely on their parent company has become a hot topic. Therefore, in this study, we collected records such as IP, ERA, and WAR of KBO League FA pitchers and news related to FA contracts. Then, we preprocessed the data and analyzed it. To this end, we analyzed the performance and financial burden indicators according to the pitcher's age and contract years. In addition, it was found that the performance of athletes was maintained until their mid 30’s, and through rational FA contracts, the team and athletes were able to suggest win-win strategies. And with this basic data analysis in the sports industry, the possibility of utilizing these strategies was confirmed.


Big data of baseball; Sports data analysis; Performance; KBO league; Free agent

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ISSN 2088-8708, e-ISSN 2722-2578