Will Krause sneak into the women's steeplechase final? Who will make the cut in the women's 800m? And just how many Ingebrigtsens will there be in the men's 1500m?
The questions ahead of the long and middle distance events in the final two Road To The Final meetings of 2019 are not quite endless, but we have a few nonetheless.
While a lot of athletes have already booked their tickets to Zurich or Brussels, there are still plenty of places up for grabs, so here is your discipline-by-discipline breakdown of who needs what in Birmingham and Paris.
Birmingham
There will be no points up for grabs in the men's middle and long distance in Birmingham, but there are still plenty of decisions to be made in the women's events.
The women's 800m remains the most open of the lot, with only Ajee Wilson having qualified thanks to her win in Stockholm and podium finishes in Doha and Eugene. The American looks likely to be joined by the likes of Habitam Alemu and compatriot Raevyn Rogers.
Lynsey Sharp and Olya Lyakhova could also take a big step towards qualification with a big points haul in Birmingham, while Natoya Goule and Halima Nakaayi will be looking to sneak into the top eight.
The women's 800m Diamond League Final will take place in Brussels on September 6.
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In the women's mile, there will be points up for grabs in the women's 1500m final, for which 12 athletes qualify. Of those running in Birmingham, only Gabriela Debues-Stafford has already secured qualification, while Axumawit Embaye is just a few points short in eight place.
All of the rest of the field could sneak into the top 12 with a win, though for the likes of Konstanze Klosterhalfen and Jemma Reekie, a solid top-five finish in Birmingham may well be enough.
The women's 1500m Diamond League Final will take place in Zurich on August 29.
Beatrice Chepkoech, Celliphine Chespol and Norah Jeruto will all be in Birmingham, but each of them have already amassed enough points to qualify for the women's 3000m steeplechase final.
From the rest of the field, Daisy Jepkemei and Winfred Yavi both currently in the top 12, but both Genevieve Lalonde and Gesa Krause will fancy their chances of picking up enough points to edge into a final spot. The Canadian and the German currently sit a point adrift of qualification in 13th and 14th.
The women's 3000m steeplechase Diamond League Final will take place in Zurich on August 29.
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Paris
In the men's 1500m, Diamond Trophy holder Timothy Cheruiyot has long been sure of his place in the 2019 final thanks to victories in Stockholm, Eugene and Lausanne. Ayanleh Souleiman, Vincent Kebet and Jakob Ingebrigsten have also already qualified, with both having chalked up a handful of podium finishes on the Road To The Final.
Filip Ingebrigsten looks a safe bet to join the four finalists with 11 points in fifth place, while the likes of Bethwell Birgen, Elijah Motonei Manangoi and Marcin Lewandowski will also be confident of a place in the top 12. Further down, John Gregorek and Ronald Musagala might be looking over their shoulders as they sit just a point or two clear of the chasing pack, with Craig Engels, Clayton Murphy and Ronald Kwemoi all hoping to knock them out of the top 12.
The men's 1500m Diamond League Final will take place in Brussels on September 6.
There are just five places left up for grabs in the men's 3000m steeplechase, with big names such as Soufiane El Bakkali and Benjamin Kigen among the seven who have already secured qualification.
As it stands, the only question is whether 13th placed Takele Nigate, or indeed any athlete who is yet to pick up any points, can squeeze in at the bottom of the top 12 with a good showing in Paris.
The men's 3000m steeplechase Diamond League Final will take place in Brussels on September 6.
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In the men's 800m and both 3/5000m disciplines, the Road To The Final is already complete. <link https: www.diamondleague.com iaaf-diamond-league external-link-new-window internal link in current>You can view the full provisional list of finalists for these disciplines on our standings page.
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