Looks like the ladies splits were Quigley 407, Cranny 410, Schweizer 404, Holihan 405.
Shows that Schweizer is no fluke. Will she be better than Shelby in 2021 when things actually may matter?
"Quigley completed her stage just inside 4:08 before handing over to Elise Cranny, who reached halfway in 8:18. At this point they were a couple of seconds outside the pace needed to break the record of 16:33.58 set by Kenya at the 2014 World Relays.
Karissa Schweizer ran the third leg in about 4:04 to put the team back on world record schedule, handing over to Shelby Houlihan. "
https://www.worldathletics.org/news/report/trieste-reekie-pozzi-4x1500-world-record