De Zwaan smashed Jarred Cole 4-1 with a 102 average to reach this stage.
Rydz saw off Luke Humphries in a 4-2 win and a scalp considering his opponent hit a 103 average in defeat.
There were also victories for the likes of Mike van Duivenbode who only just came through his tie with Jack Neary.
Wigan hosts the second of five weekends in this year’s
PDC Development Tour, which will each feature four £10,000 tournaments for players aged 16-23. The likes of Jeffrey de Zwaan, Luke Humphries, Bradley Brooks, Mike de Decker and Dawson Murschell have entered these events.
Click here for more information about the PDC Development Tour.