The user’s query appears to be asking about the release date or timing for Race Across the World Series 20 (likely the 20th season or a future season). Here’s what I can share based on the latest publicly available information and typical release patterns:

• Race Across the World (the BBC reality travel series) has run multiple seasons since 2019, with new editions typically announced by the BBC and released on BBC channels and iPlayer. The most recent publicly discussed seasons have included 2024–2025 cycles, with announcements about start dates and routes.
• As of the last updates, a fifth season (often referred to as Season 5) was discussed for 2025, with various media outlets confirming a return and potential air dates in 2025. Some sources pointed to a late-April 2025 start for Season 5, with routes spanning thousands of kilometers across multiple countries. However, exact air dates can vary by region and platform, and BBC scheduling can adjust.
• If “Race Across the World 20” refers to a hypothetical or upcoming season beyond Season 5, there has been no official, widely publicized confirmation accessible in mainstream outlets up to now. Release timing for subsequent seasons would typically be announced by the BBC or the show’s official social channels, with details including start date, route, and participating teams.

If you’d like, I can search for the most current official announcements or media coverage to confirm the exact air date for the specific season you have in mind. Would you like me to look up the latest updates and provide a precise date if available?