Yes, they do exist, both nationally and internationally: filter coffee championships, also known as the Brewers' Cup. This is how the company history of Süssmund Kaffee began, for example, when Nikolaus won the Brewers' Cup in Austria twice with his home-roasted coffee, thus laying the foundation for his own coffee roasting business.
The 2016 World Brewers Cup Champion, Tetsu Kasuya, even collaborated with Hario to develop a specially shaped coffee filter for the V60. This model features curved grooves inside that are different from Hario's standard V60 coffee filter. The special shape allows the water to flow more slowly, promising a more stable and easier-to-control extraction. The coffee tastes even more aromatic and full-bodied.
We don’t want to withhold the winning recipe from the World Brewers Cup 2016 from you:
Hario V60 Kasyua coffee filter
20g coffee (coarse grind)
We recommend: La Divina, El Salvador, Kenya Variety, Natural processed
92°C water 300ml (0.3 ppm, PH 6.6)
45sec blooming (50ml)
0:45 Pour 70ml
1:30 Pour 60ml
2:15 Pour 60ml
3:00 Pour 60ml
3:30 Extraction finished