[MNBlue]

Sounds like your umpire didn't read it the way you did since your runner was only protected to 3B. His judgment vs yours. He wins.

I've told coaches (who've asked) that when obstruction is called, have your runner advance to the next base, since the obstructed runner can't be called out between the bases she was obstructed - keeping in mind that interference trumps obstruction. After reaching the next base, now you must coach the runner as if there was no obstruction since you can't read the umpire's mind to determine to where your runner is protected. If you think she can make the following base send her and live with the results. If not, hold her and be safe. If she was protected to the following base, the umpire will award her that base.