Rudisha is back but beatable, Farah now owns all the British records, the 800m is a different event this year, and Caterine Ibarguen's 38 win streak in the triple jump came to an end.
He hadn't lost since the London Anniversary Games last year. Marquise Goodwin won in 8.42m.
Harrison won the 100H in 12.46 while James ran 44.23. English Gardner got a big win over Dafne Schippers in the 100 (11.02) while Andre De Grasse won the 200 in 20.16. Ameer Webb was a surprising non-factor in 6th.
The last time Ibarguen lost was the London 2012 Olympics and here she lost to the same woman that beat her then, Kazakhstan’s Olga Rypakova who jumped 14.61m.
Rudisha is back but beatable, Farah now owns all the British records, the 800m is a different event this year, and Caterine Ibarguen's 38 win streak in the triple jump came to an end.
Kiprop asked for 1:51 through 800 (Hicham El Guerrouj was 1:50.7 when he set the WR).
Women's 100H will be interesting with Keni Harrison fresh off her 12.24 AR facing Brianna Rollins and Sally Pearson in her comeback race.
A Semenya-less 800 will see Francine Niyonsaba take on Ajee Wilson and Lynsey Sharp. Jairus Birech vs Conseslus Kipruto in the steeple, Vivian Cheruiyot and Mercy Cherono in the 5K. Non-distance action includes  Ameer Webb taking on Trayvon Bromell and Andre De Grasse in the 200, Kirani James (400) and Greg Rutherford (LJ).
Asher-Smith will be in the 100 against Dafne Schippers, Tianna Bartoletta and English Gardner.
*Athletics Weekly's "Ones To Watch" In Birmingham
Greg Rutherford, Marquise Goodwin, World indoor champ Marquis Dendy and Christian Taylor.
Sub 44-second men Yousef Masrahi and Isaac Makwala are also in the race.
Pearson was only 7th place and nearly a second off her PB, but still feels she can medal in Rio.
*Good Read: Pearson Says She "Retired In Her Mind" When She First Broke Her Wrist Last Year “Getting home from Italy and realising I wasn’t going to the World Championships [later that summer] I cried probably every morning for a week or two. I had a torn calf that was about 14cm long which actually caused me to get the wrist injury so I couldn’t walk, I couldn’t cut my food properly and the little things really got to me. To be honest when I first did my wrist, I retired in my head. I didn’t want to come back to the sport and hated everything about the world. I was just sick of getting injured. I felt like that for a while but then I felt myself getting unfit and losing strength so I started training again."