Manchester Thunder and Hertfordshire Mavericks continued their perfect starts to the new Superleague season.
Thunder won 56-47 in the first game of the week in Loughborough, while the Mavericks were always comfortable as they won 51-38 at Yorkshire Jets.
Team Bath remain third after their impressive 58-28 win at home against Team Northumbria.
In the final match, 2015 champions Surrey Storm won 62-40 as they continued Celtic Dragons' losing start.
It means Dragons, Jets and Northumbria have all lost their opening four games of 2016 and sit on zero points.
Thunder remain top of the table on goal difference over the Mavericks and they travel to Hertfordshire in round five.
|Superleague 2016 round four results|
|Loughborough Lightning 47-56 Manchester Thunder|
|Team Bath 58-28 Team Northumbria|
|Yorkshire Jets 38-51 Hertfordshire Mavericks|
|Surrey Storm 62-40 Celtic Dragons|