The most recent World Baseball Classic (WBC) before the current 2026 tournament was held in 2023.

  • The 2023 WBC ran from March 8 to March 21, 2023 , with games in Japan, Taiwan, the United States, and others.
  • The championship game of that last WBC was played on March 21, 2023.

So if you’re asking “when was last WBC” in March 2026, the previous completed edition finished on March 21, 2023.