My attempt at improving the run-in for this race, which involves rotating the circuit through 180º.
First, Arkale from Errenteria with 47km to go. Then ride to Hondarribia and climb the eastern side of Jaizkibel:
Yes, I know it averages less than the west side which is far more famous, but the 9% kilometre there is a nice springboard for attacks, with the summit at almost exactly 30km from the finish. We then descend the normal side of Jaizkibel, and head along the run-in via the outskirts of town and the seafront until crossing the finish line with 11,3km remaining. Then we head to the east of town and climb up to Monte Igeldo:
Simple, small climb; it's not steep enough that everybody will leave everything to this climb, and with Jaizkibel only 30km out it will not stop it being a prospective springboard for attacks. Igeldo crests 8km out, then it's gentle descent and then about 5km circling Donostia to finish facing the correct direction on the Kontxa.