During the Katowice 2015 CS:GO Championship, players have the ability to participate in The Katowice 2015 Pick'Em Challenge. Much like The Dreamhack 2014 Pick'Em Challenge, players can buy directly the team stickers they want to pick winners of upcoming matches. Additionally, the ESL One Katowice 2015 Legends (Holo/Foil) and ESL One Katowice 2015 Challengers (Holo/Foil) capsules were available to buy, containing Holo or Foil versions of the team stickers. Picking a team with a team sticker during the tournament locked the sticker and made it unavailable to use, trade, or sell until the event day was complete. Undoing a pick did not unlock the sticker until the event day was complete.