Hi Ed,
When I first looked at your creation, I thought is was ABOK 2360, a standard Thump Mat knot. However, as knotsaver pointed out, it isn't ABOK 2360. It's closer to ABOK 1064, but there is one crossing that is different. It is also similar to ABOK 823, 1178, and 2257 at the start, but the finish is different.
I don't know if the knot you have is in The Ashley Book of Knots. It isn't a Turks Head, because it isn't symmetrical around the center, and it's not a bend because a bend joins two line together.
Pat