  Esports and high performance human-computer interaction are on the forefront
of applying new hardware and software technologies in practice. Despite that,
there is a paucity of research on how semi-professional and professional
championship level players approach aspects of their preparation.
  To address that, we have performed, transcribed, and analyzed interviews with
top-tournament players, coaches, and managers across multiple game titles. The
interviews range from competitive events occuring between 2015-2020. Initial
processing included transcription and manual verification. The pre-processed
interview data were then organized and structured into relevant categories,
touching on psychological, physical, and nutritional aspects of esports
preparation. Further, where applicable, interview responses where rated and
quantified via consensus judgement by a panel of experts.
  The results indicate that physical training was most often mentioned as a
relevant or consistent activity, while nutrition was indicated as relatively
unimportant. Qualitative analysis also indicated that consistency and
resiliency were noted as the most key factors recommended for upcoming esports
competitors. It is also clear that many players put emphasis on balancing their
gameplay time and with activities. Lastly, we identified important areas of
inquiry towards a deeper understanding of the mental and physical demands of
professional esports players.
