Turkiye Klinikleri Journal of Sports Sciences

.: ORIGINAL RESEARCH
Comparison of Average Minutes Played and Usage Rates of Domestic and Foreign Players in Turkish Basketball Super League: A Descriptive Research
Türkiye Basketbol Süper Ligi'ndeki Yerli ve Yabancı Oyuncuların Ortalama Oyun Sürelerinin ve Top Kullanma Oranlarının Karşılaştırılması: Tanımlayıcı Araştırma
Eyüp Anıl DUMANa
aMarmara University Faculty of Engineering, Department of Metallurgical and Materials Engineering, İstanbul, Türkiye
Turkiye Klinikleri J Sports Sci. 2025;17(2):91-9
doi: 10.5336/sportsci.2024-106476
Article Language: EN
Full Text
ABSTRACT
 Objective: This research aims to examine the differences between domestic and foreign players in the Turkish Basketball Super League in terms of average playing time and usage rates. Material and Methods: For this analysis, the 6 most recent seasons under the 5+1 foreign player rule were examined. The 2019-2020 season was excluded due to its incompleteness caused by the coronavirus disease2019 pandemic. Consequently, 5 seasons (2018/2019-2023/2024) were analyzed. Data on average usage rates and playing time were collected from realgm.com. The distribution of each season's statistics was tested for normality using the Shapiro-Wilk test. The comparison was conducted using the independent samples t-test for normally distributed variables and the Mann-Whitney U test for the variables that did not follow a normal distribution in the R programming environment. Results: Despite variations in the ratio of domestic and foreign players each season, no statistically significant difference was found in the average number of games played. Conversely, statistically significant differences were found in both average playing time and average usage rates between domestic and foreign players in each analyzed season (p<0.01). Conclusion: In each investigated season, foreign players demonstrated significantly higher average playing time and usage rates compared to domestic players. These results suggest that further analysis is necessary to assess their impact on club performance and national team success.

Keywords: Basketball; basketball player analysis; player performance; recruiting athletes; usage rate
ÖZET
 Amaç: Bu çalışmanın amacı, Türkiye Basketbol Süper Ligi'nde mücadele eden yerli ve yabancı oyuncuların aldıkları sürelerin ve top kullanma oranlarının karşılaştırılmasının yapılmasıdır. Gereç ve Yöntemler: Bunun için çalışmada 5+1 yabancı kuralının uygulandığı son 6 sezondan koronavirüs hastalığı-2019 pandemisi nedeniyle tamamlanmayan 2019-2020 sezonu çıkartılarak, toplamda 5 sezon (2018/2019-2023/2024) analiz edilmiştir. Çalışmada kullanılan istatistikler realgm.com web sitesinden alınmıştır. Her bir sezon istatistiğinin dağılımının normal dağılıma uyup uymadığı Shapiro-Wilk testi ile incelenmiştir. Karşılaştırma, normal dağılım gösteren değişkenler için bağımsız örneklem t-testi, normal dağılım göstermeyen değişkenler için ise Mann-Whitney U testi kullanılarak R programlama dilinde gerçekleştirilmiştir. Bulgular: Her bir sezonda yerli ve yabancı oyuncu dengesinde değişimler olmasına rağmen, oynadıkları ortalama maç sayılarında istatistiksel olarak anlamlı bir fark olmadığı tespit edilmiştir. Buna karşın incelenen her sezonda yerli ve yabancı oyuncular arasında hem ortalama oyun sürelerinde hem de ortalama top kullanma oranında istatistiksel olarak anlamlı farklılık tespit edilmiştir (p<0,01). Sonuç: İncelenen her sezonda ortalama oyun sürelerinde ve top kullanma oranlarında yabancı oyuncuların yerli oyunculara üstünlük kurduğu tespit edilmiştir. Bu sonuçların, kulüp performansları ve milli takım başarıları üzerindeki etkilerini değerlendirmek için daha kapsamlı analizler yapılması önerilmektedir.

Anahtar Kelimeler: Basketbol; basketbol oyuncu analizi; oyuncu performansı; devşirme oyuncular; top kullanma oranı
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