When Japan’s bid committee successfully secured host status in 2013, it projected a relatively conservative budget of $7.3 billion (£5 billion).
They revised the total six years later in 2019, bumping it to $12.6 billion (£9.1 billion).
After the games have come and gone, even the budget committee’s prediction may fall short.
National newspapers Asahi and Nikkei have conducted independent analysis arriving at projected costs of $28 billion (£20 billion).
The individual projections from Japan’s financial publications would make the 2020 Olympics the most costly in modern memory.
The 2016 summer Olympics in Rio de Janeiro cost an estimated total of $13.7 billion (£9.9 billion).