Over my limited sample size (4 matches and about 100 condition loss in training) I found no significant differences between condition loss during match or training.
Basically I think you can apply the same TEF and calculate for 48 lost condition daily (8 daily increases of 6%) and however much you want to use with rests
For me the single unknown is the TEF, that you can only find out for sure by waiting a few days or wasting a few rest packs.
Great guides, Al!