Last year, Wanjiru produced a commanding display to clinch the women's title in Berlin, slicing through the tape in 2:21:05.
For Serem, the national showpiece was primarily a dress rehearsal ahead of the Paris showdown.
Cheruiyot has endured a mixed campaign on this year's Diamond League circuit, managing just one podium finish so far.
While Lyles had the upper hand in Rome, Omanyala insists he is upbeat and relishing the opportunity for a rematch in the French capital.
Kiriago dominated Sunday evening's 23km up-and-down race, taking victory in a course-record time of 1:42:59.
The 2026 Commonwealth Games are scheduled for July 23 to August 2 in Glasgow, Scotland.
A successful mock run signals readiness for the charity
Ndangiri was in imperious form at the Athletics Kenya National Championships/Commonwealth Games trials, powering to victory in 39:14.0.
Omanyala produced the fastest men’s 100m time of the day, cruising to victory in his heat in 10.22 seconds ahead of Maxwel Chingili (10.75) and Roomey Wayne (11.00).