THUNDER dOWNUNDER will beat Mindfreak and seize the $2500 prize in the Upper Bracket Semifinal at the 2026 ESL Challenger League Season 52 Oceania Cup 1. The teams will clash in a Best of 3 on August 28, 2026, with unranked THUNDER overcoming the gap against Mindfreak, who sit at #148 in the CS2 Wo…