Nottwil in Switzerland and Arizona in the United States will both host World Para Athletics Grand Prix events this weekend.
Three days of track and field action will take place in Nottwil from tomorrow through to Sunday (May 26), while Arizona will stage a two days of competition starting tomorrow and concluding on Saturday (May 25).
In the past two years, 15 world records have fallen at Nottwil's renowned track adjacent to the Swiss Paraplegic Centre.
The Australian team is out in force in the sprints this time round with Evan O'Hanlon, Chad Perris, Scott Reardon, Rheed McCracken and Angie Ballard all vying for success.
For McCracken, a regular at the annual Swiss meeting, it will be a chance to check out his major rivals in the men’s T34 category.
Competing alongside him will be Tunisia’s Walid Ktila, the United Arab Emirates’ Mohammed Al Hammadi and Finland’s Henry Manni.
Together, the four wheelchair racers amassed 11 medals at the 2017 World Para Athletics Championships in London.
Dutchman Stefan Rusch, the winner of the men's 100 metres T34 gold medal at last year’s European Championships, will also be in action.
Great Britain’s Hannah Cockroft opened her season last weekend and will no doubt be hard to beat in the women’s 800m T34.
The 26-year-old 10-time world champion notched up four wins out of four in 2018, while the year before that she set the 1,500m T34 world record.
Germany will have numerous stars out in the field including Felix Streng, who competes in the long jump T64.
Streng will be joined by team-mates Niko Kappel, Daniel Scheil and Sebastian Dietz, all of whom compete in shot put events with Scheil also contesting the javelin.
Among those hoping to make their mark at the World Para Athletics Grand Prix in Arizona is Paralympic champion David Brown, who five years on from smashing the men's 100m T11 world record believes he has rediscovered the winning formula that will enable him to go even faster.
It comes with the Parapan American Games and the World Championships both taking place this year, and the clock ticking down to the Tokyo 2020 Paralympic Games.
Brown, who will compete in the men's 100m and 400m T11 events at Arizona State University, clocked 10.92sec in California in 2014 and became the first person in his class to go below 11 seconds.
"I’m getting back to race form – how I was in 2014," Brown said,
"Five years ago, I was only two years into my professional career.
"I was doing a lot of things, but not really understanding why I was doing them.
"I didn’t have a grasp on everything – I was still a baby.
"I even told my coach (Joaquim Cruz) this year that I feel like we’ve been training back in 2013 or 2014 time.
"He was like, just calm yourself, we’ve got a long way to go – firstly to November for the World Championships and secondly the overall goal in Tokyo.
"I still feel like I’m new, because I’m just – seven years in to this – discovering 'oh, this is what worked before, let’s get back to this'."