The professional wrestlers of the Raijin stable are racking up their wins, and so is Matsutaro for that matter. But as to the beginner-level wrestlers, their nerves are getting the best of them; none of them are winning.
The reason you're not winning is, 
since the season has just begun,
Der Grund, warum ihr verliert, ist,
 weil die Saison erst begonnen hat.
La razón por la que no ganan es 
porque la temporada apenas empieza.
La razón por la que no ganáis es 
porque la temporada acaba de empezar.
Vocês ainda não venceram porque 
a temporada acabou de começar.