What I've found and spot treated is hardly what I'd call overtaken. I'm not giving up this fight!!

I have it being watered by Orbit B-Hyve smart timer, and have let it manage the irrigation since last fall. With temps in the 80's, it'll go off about once a week, for 4 x 9 minutes = 36 minutes. It kicks off twice a week, sometimes a third, when the temps get into the 90's. (As an aside, I will give the B-Hyve system thumbs up for keeping my lawn green without seeming to go more than I would have done setting it to run on a fixed 3x per week, 20 min schedule, though it does have some quirks).

I don't think the gardeners are mowing too low. I wouldn't consider this scalped and the grading is pretty even since it would have been leveled off when the sod was put in. I suspect the bermuda comes from seeds from the common-use mower. I don't think any of my neighbors have a full lawn of bermuda. Most is sod (fescue, I'd guess) since a lot of homes on my street get torn down and flipped. But pre-em will be on my plan for the future once I get this taken care of.

Here's a picture of the spots that I've found and treated. I'm sure there are probably more spots, but I have looked pretty thoroughly around these for runners.

Raking your grass pulls up the runners. Then you can carefully paint on full-strength round up. I use a tin foil pie pan and small paint brush. Wear gloves. Get some orange marking paint and spray small spot next to it so you can find it again to make sure it is dead. I know from painful experience that digging it out doesn't work.

OK, I'll try with raking. I used a kind of leaf rake before, but maybe a harder prong'd cultivator will get down to the soil. Yes, I know from painful experience too that digging out doesn't work - ruined my grading and ended up with ruts and hills that would get scalped with the mower. Ended up taking that section out (was on the sidewalk strip) and redoing it with sod.

I have this SAME problem in my small front yard in PA. I have a BEAUTIFUL thick, lush, dark green back yard. My tiny front yard and front flower beds are getting attacked by this "bermuda" style runners and it's UGLY blades of brass. I have dark Tall Fescue, and this thinner light green "Bermuda" runners. UGH! What are my options? Raking? I use weed killer when it comes into the flower bed, but it just goes in a different direction then. Is there a broad sweeping "weed killer" that I can use that will not harm the good fescue I already have?

lilylchen, your project mishap sounds like one of mine. :) I just purchased an Ames Thatching rake for $30 at the Big Box. It works very well but be prepared for a serious workout.