Weather forecast for race day is 76 and sunny with virtually no wind, and that might be as good as it gets. He's obviously in shape to do 1:42-something off his race at Mt. Sac earlier.
Can he use Rudisha as a rabbit, or is David not in that kind of shape (nobody's going to know until the race is run)? If Duane plans to go out in 50, what's he going to do if Rudisha goes out in 49 (again)? What if Duane expects Rudisha to go out hard, but David's not ready for that yet? I'm going to say 1:42.45, but the unknowns are why I think Monaco is a better shot. It won't be a DL event in Monaco, but they will have an 800 (BYO Rabbits).