She could easily get into a Diamond League 5K the issue is that there isn't one this weekend. Only distance race in Monaco is steeple and there is only a b-level non-diamond league 3k in London. I also think she doesn't want to run a 3k only a 5k to improve her time. I think this is a smart move to run in Heusden because she can run in a race that is set up entirely for her, instead of having to be in no man's land to run a 14:40 in a 14:20 race like Rabat.