Swimming (Baseline Measurement) 35:00 
Move the training to Friday.
Friday: my body was once again completely stiff. I did suffer from the first minute till the last one and only managed to get to 650 meters. I was not physically tired but specially my shoulders and arms were as hard as a rock.
15 minutes - 650 meters
After this is was difficult for me to get any speed on the tests:
50m - 46 seconds
100m - 1' 44''
200m - 3' 42''
I think I should repeat this test in a couple of weeks!!