Most days visiting Expos

The most days visiting Expos is 648 and was achieved by Tomiyo Yamada (Japan) as verified at Expo 2025 Osaka, Kansai, Japan, on 5 September 2025.

As of 5 September 2025, Tomiyo successfully attended Expo Osaka 1970, Expo Aichi 2005, Expo Zaragoza 2008, Expo Shanghai 2010, Expo 2012 Yeosu, Expo 2015 Milano, Expo 2017 Astana, and Expo 2022 Dubai and Expo 2025 Osaka. Additionally, Tomiyo visited the World Horticultural Expos held in Beijing (2019) and Doha, Qatar (2023).

For both the Shanghai and Yeosu expos, Tomiyo was honoured by the respective organising committees for attending every single day of the event—184 days in Shanghai and 93 days in Yeosu.