The United States of America have strength in depth in seemingly every department of their athletics setup.
The emergence of Christian Coleman has revitalised their sprinting arsenal, while the likes of fellow youngsters Fred Kerley and Donavon Brazier have kept the more experienced athletes on their toes.
Perhaps their biggest threat in recent years lies in the strength in depth of their sprinters and short distance runners, where there is seemingly an endless production line of talent.
Earlier this year, US collegiate Michael Norman broke the 400m world record indoors in what was only his third ever race, shaving 0.05s off the previous record, held since 2005 by Rio 2016 400m hurdles gold medallist, Kerron Clement.
The relay teams are equally as effective across both the 4x100m and 4x400m, with the latter finishing as the fastest in the world each year outdoors since 2013, until Trinidad and Tobago pipped them by 0.5s at last year’s IAAF World Championships in London.
Of their female athletes, the 100m hurdles has become one of their main specialisms with Kendra Harrison their standout performer.
She broke the world record in London in 2016, but has stiff competition in Sharika Nelvis, Nia Ali and Jasmin Stowers pushing her all the way last year, not to mention the likes of Christina Manning.
Allyson Felix remains the big name in terms of their 400m setup, winning all bar one of the major 400m finals she took part in last year.
In the field, there is even more strength in depth with the men’s shot put being an event they have controlled in the last century, with Ryan Crouser, Joe Kovacs and Darrell Hill locking out the top ten places last year.
Brittney Reese and Tianna Bartoletta have had command of the women’s long jump outdoors standings every year since 2011, while they have also emerged as one of the top shot putting countries with Raven Saunders, Daniella Hill and Michelle Carter showing the depth they have. With Sandi Morris adding the pole vault world indoor title and Sam Kendricks the reigning world outdoor champion in the men’s equivalent, there are an embarrassment of riches in the field events for the American team.
Did you know?
Only once in the last 16 years has an American not finished the outdoor season having thrown the furthest distance in the men’s shot put.
Facts from IAAF World Championships London 2017