The official start to the outdoor season is just weeks away! Throughout the season, many team championships will come down to the 4x400m. We wanted to see which teams we should look out for when it comes to this epic relay.
So, we took a look at each team's top four 400m athletes from the 2019 season to get a look at an estimated average and total time we could expect from these 4x4's in 2020.
One thing to keep in mind is that often 4x4 relays are made up of middle distance athletes, some of which, race the open 400m very little over the course of a season.
Here are our predictions.