Vishvaa Rajakumar, a 20-year-old college student from India, won the Memory League World Championships 2025 and rose to No.1 in the Memory League's World Rankings. Rajakumar memorised 80 numbers in 13.50 seconds and 30 images in 8.40 seconds, among other challenges. Rajakumar said building an imaginary "memory palace" helps him in memorising sequences.