Oh, to add...
re the women's 4x400m, if Klaver makes the w400m final, she wont run the 4x4 hts, because they are on the morning of the w400 final (ridiculous scheduling)
I'm quite sure they will run Bol. It is the morning after the 400mh final, yes, but I think the lesson they learned at the European Championships was crucial: it's too risky to not run her. So I fully expect Bol to be on the last leg in the w 4x4 heats. If Peeters makes the 400mh final too, they may rest her (she is needed for the final for sure: 50.5 relay leg in the Bahamas). Otherwise she will run too.
As it stands, the NED optimum 4x4 team looks to be Peeters > Klaver > Lisanne DW > Bol