New World Cup Ball 'Trionda' May Impact Long-Distance Kicks, Researchers Suggest

The next FIFA World Cup tournament, hosted by the US, Canada, and Mexico, marks several firsts, including more participating teams and its distribution across three host nations. As with previous tournaments spanning over 50 years, it will introduce a brand-new soccer ball design: the Trionda.

Researchers, who have been studying the physics of World Cup balls for the past two decades, recently examined the Adidas-manufactured Trionda. This ball features four red, green, and blue panels adorned with deep grooves and emblems representing the host countries, such as a maple leaf, a green eagle, and stars.

Through wind-tunnel experiments, the research team found that while the Trionda improves upon earlier designs in some respects, long-distance kicks may not achieve the same range as in the past. John Eric Goff, a member of the research team and an incoming professor of engineering practice at Purdue University, stated that the Trionda "may very slightly punish extreme distance, but it should reward clean technique and predictable flight."

Adidas has been responsible for designing new balls for each World Cup since the 1970s. Earlier design changes often focused on aesthetics, while some structural improvements included upgraded foam cores and enhanced water resistance. However, a significant shift occurred with the 2006 World Cup in Germany, which introduced the +Teamgeist ball featuring 14 thermally bonded, curved panels instead of the traditional 32 stitched pentagonal panels.

This change led to a ball that absorbed less moisture, preventing it from becoming heavier during play. Since then, Adidas has continued to evolve its ball designs with varying surface textures and fewer panels, changes substantial enough to affect gameplay. The researchers' experiments, conducted consistently at the University of Tsukuba in Japan, involve attaching the ball to a metal rod connected to a force balance to measure aerodynamic forces like drag and lift at speeds typical of a real soccer game (seven to 35 meters per second).

According to MIT Technology Review, each Trionda ball costs $170, limiting the number of orientations that can be tested, as each test can effectively destroy the ball.