With a duration of around five hours, this is one of the most extensive sessions of the World Championships. It could feature the qualification in the high jump of two good friends, Gianmarco Tamberi of Italy and Mutaz Barshim of Qatar, who shared the Olympic gold medal in Tokyo. Tamberi is known as the fans’ favourite showman and Barshim made history in Hungary when he almost broke Javier Sotomayor's world record at the Gyulai Istvan Memorial a few years ago.
You might see two world record-holders as the 110m hurdles could feature USA’s Grant Holloway, who holds the indoor world record in the 60m hurdles and has competed many times in Hungary, where he had his first ever overseas competition. The 400m hurdles world record-holder Karsten Warholm from Norway will also be trying to secure his place in the next round.
Next up on the track will be some of the best women’s 100m sprinters in the world: Shelly-Ann Fraser-Pryce, Elaine Thompson-Herah and Shericka Jackson all begin with the heats as they build towards another superb sprint showdown.
In the women's discus, a European-US duel is expected. The qualification round should be an easy warm-up for Croatia's two-time world, two-time Olympic and six-time European champion Sandra Perkovic and for USA’s Olympic champion Valarie Allman. In the heptathlon, the situation will become clearer, with Nafissatou Thiam and her rivals taking on their fifth and sixth events.
The first round of the men's and women's 400m could feature stars like Michael Norman, Kirani James, Wayde van Niekerk, Marileidy Paulino, Natalia Kaczmarek and Lieke Klaver. Look out for Olympic champion Shaunae Miller-Uibo in the 200m (starting on day five) instead, as she now intends to focus on the half-lap event in major competitions after her 400m success.
Women's discus qualification:
Sandra Perkovic, two-time Olympic champion, two-time world champion, six-time European champion • Valarie Allman, Olympic champion • Feng Bin, world champion
Women's 400m heats:
Marileidy Paulino, Olympic and world silver medallist • Sada Williams, world bronze medallist • Natalia Kaczmarek, European silver medallist • Lieke Klaver, world mixed 4x400m silver medallist
Nafissatou Thiam, multiple Olympic, world and European champion • Anouk Vetter, Olympic and world silver medallist • Adrianna Sulek, European silver medallist, world indoor silver medallist
Men’s 400m heats:
Michael Norman, world champion • Kirani James, Olympic and world gold medallist • Wayde van Niekerk, world record-holder, 2016 Olympic champion, two-time world champion • Steven Gardiner, Olympic champion
Men's high jump qualification:
Gianmarco Tamberi, Olympic champion, two-time European champion • Mutaz Barshim, Olympic champion, three-time world champion • Woo Sanghyeok, world indoor champion
Men's 400m hurdles heats:
Karsten Warholm, world record-holder, Olympic champion, two-time world champion, two-time European champion • Alison dos Santos, world champion • Rai Benjamin, Olympic and world silver medallist
Women's 100m heats:
Shelly-Ann Fraser-Pryce, three-time Olympic champion, 10-time world champion • Elaine Thompson-Herah, five-time Olympic champion • Shericka Jackson, three-time world gold medallist • Dina Asher-Smith, 2019 world 200m champion, four-time European champion • Ewa Swoboda, European U23 champion • Gina Luckenkemper, European champion
Men's 110m hurdles heats:
Grant Holloway, two-time world champion, world record-holder in the 60m hurdles • Devon Allen, 0.04 off the world record • Trey Cunningham, world silver medallist • Hansle Parchment, Olympic champion • Sasha Zhoya, world and European U20 champion