Chris, I assume this is a 64C case - something like: Both sides revoked, so no rectification. - First revoke by N/S was on trick 2 - if it had not occurred, E/W (at that stage, following normal play) would have made 3 more tricks, so for equity, 3 tricks are transferred to E/W. - Second revoke by E/W on trick 5 - if it had not occurred, N/S (at that stage) would have made 1 more trick, so 1 trick is transferred back to N/S. - so, to restore equity, 2 tricks are transferred to E/W as the end result. (BTW, I think the use of the word "rectification" is poor in this context, as it seems to imply restoring equity - I think the old terminology of "penalty" would be clearer ) :unsure: pwg.