Chochim guides

Things worth knowing before you hit the booking button.

• Ticket resale scams and how to avoid them: what to check before you pay, and how to reportFake escrow pages, endless "fee" requests, account-transfer tricks, and what to check before you pay.
• Winning course registration: syncing to your school's server clock and using the course cartSync to your school's server clock, use the course cart well, and what to do when a class fills up.
• 2026 KBO playoff tickets: schedule, where to buy and box office rulesWhere to buy, when sales open, the four-ticket limit and same-day box office rules.
• Getting Korean Series tickets: from the day before to game dayWhich games are where, "if necessary" games, day-of returns and the tougher scalping law.
• What is server time, and why is it different from your clock?Sales open on the seller's clock, not yours. Why they drift apart and how we measure it.
• Concert ticketing in Korea: from the day before to paymentPrep the day before, when exactly to click, queues, seat picks, payment and returns.
• Holiday train tickets in Korea: booking KTX for Seollal and ChuseokHow Korail's holiday booking works, what to set up early, payment deadlines and returns.
• How fast are human reactions? Averages, measurement and getting fasterThe 0.2-second average, the 0.1-second false-start rule, and why online tests read slow.