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BLAST Open Spring 2026

CompletedTier S

The BLAST Open Spring 2026 (also known as BLAST Open Rotterdam 2026) was the first tournament of the inaugural season of the BLAST series with its new format, and it was considered a (Valve Tier 1 / S-Tier) event in the game CS2.

Counter StrikeMar 18, 2026 – Mar 29, 2026Rotterdam, Netherlands🇳🇱 Netherlands$400,000BLAST

Format

Group Stage (March 18th – 23rd, 2026)

  • Structure: Two double-elimination format (GSL) groups.
  • Team Distribution: Each group consists of eight teams.
  • Match Format: All matches are Bo3 (Best of 3).
  • Playoff Qualification: The top three teams from each group advance to the Playoffs based on the following seeding:
  • Group Winners: Advance directly to the Semifinals.
  • Group Runners-up: Advance to the Quarterfinals as the High Seeds.
  • Group 3rd Place: Advance to the Quarterfinals as the Low Seeds.

Playoffs (March 27th – 29th, 2026)

  • Structure: Single-Elimination bracket.
  • Quarterfinals & Semifinals: Played as Bo3 (Best of 3).
  • Grand Final: Played as Bo5 (Best of 5).