Who's Sacrificing?

[rod]

This is one of the more memorable deals from Monday's club game, a red point event. Doug was my partner. I'll just post a screenshot of the online results.

Screenshot from 2022-10-17 20-05-27.png (38.4 KiB) Viewed 11903 times

The auction proceeded:

West  Rod   East  Doug
1♥    2♦    3♣    3♦
4♣    4♦    5♣    5♦
Pass  Pass  6♣    Pass 
Pass  Dbl   All pass

I doubled figuring that if it makes we're getting a zero anyway. The contract actually does make with normal play, but East erred to go down one. Even with that he got 71% of the matchpoints!