Some of our training plans give you two workouts per day on certain days. On these days, does it matter what order you do them in? Are they set intentionally in that order?
I intentionally plan the workouts to be done in the order given, to maximise recovery for the next day.
This is especially true with swim and run days, because I believe swimming helps the legs to feel a little less sore after a run. It is not quite so important on bike/swim days to do the sessions in a particular order.
However I also know that people are bound by their family and work schedules, as well as pool lane availability. So don't worry if you can't always do the workouts in the perfect order. Just do your best but don't sweat it.
Another thing to add is that you should always split the two workouts up (unless it specifically says “run off the bike”). Do one workout in the morning and one in the afternoon or evening. This gives you more time to recover between workouts, meaning you can execute each one more effectively.