If you're looking for a meeting place or a good stop around ½ or halfway between Duiven and Weert, you can try Uden, Netherlands, which is almost an hour southwest of Duiven, or almost an hour north of Weert.
Another possible place to stop near the midpoint is Veghel.
About ¼ or a fourth of the way, you can stop at Renkum, Netherlands. This is about 18 minutes west of Duiven.
About ⅓ or a third of the way, you can stop at Wijchen, Netherlands. This is about half an hour southwest of Duiven.
About ⅔ or two thirds of the way, you can stop at Son en Breugel, Netherlands. This is almost an hour southwest of Duiven, or about half an hour northwest of Weert.
About ¾ or three fourths of the way, you can stop at Eindhoven, Netherlands. This is almost an hour southwest of Duiven, or about half an hour northwest of Weert.
If you drive straight through without stopping at all, the total distance is 135 km. The distances shown above don't include local roads to get into each town, so if you're planning a long road trip, make sure you factor in traffic and road conditions, rest stop breaks, and interesting detours along the way. If you're in a rush, you can do the trip with zero stops, and your total travel time would be around 1 hour, 23 minutes.