Direct answer: Swiftest Showdown opens on November 4 at 07:00 UTC and runs until the November 18 maintenance. Its Time Attack Challenge content opens sequentially from Day 1 through Day 6.
What do I need to unlock it?
Complete the Main Quest “Open the Waterway”. Each day's challenge grants a Challenge Completion Reward, while the separate Time Attack missions award rewards for their own completion conditions.
What are the official maximum rewards?
- Challenge Completion Rewards: Star Fragment ×1,800 and Gold ×4,800,000.
- Time Attack mission rewards: Star Fragment ×600.
- Total maximum listed across all challenges and missions: Star Fragment ×2,400.
The official notice says rewards cannot be claimed after the event ends. It does not publish a universal time ranking, character tier result or pull recommendation.
Official source: Swiftest Showdown - Time Attack Challenge!.
Events schedule · November 5 maintenance · Leaderboard context