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Bartosz Zmarzlik defends his motorcycle speedway world championship title, it was his fourth world Speedway

Published October 1, 2023· Updated October 28, 2026·1 min read

Context: 2023 Speedway Grand Prix.

Bartosz Zmarzlik defends his motorcycle speedway world championship title, it was his fourth world Speedway World Championship won overall.

Event summary via Wikipedia Current Events (2023-10-01).