TY JOUR TI A model for evaluating the effectiveness of sporting events (using the example of esports) KW sports management KW esports KW evaluation of the effectiveness of sports events KW integral index KW social profitability KW resource efficiency KW media coverage KW esports events KW computer sports KW marketing in sports JO Russian Journal of Information Technology in Sports AU Beresneva, V.A. AU Ivanova, E.D. PY 2026 IS PB Russian Association of Computer Science in Sport