Now I'm supposed to do 2 x 100m each in 1:54min or less; and repeat it five times. That's not going to happen and indeed it didn't happen. The first pair of 100m were done in 1:56min/100m which I was very happy with. Unfortunately from then on my pace slackened until the best I could manage was 2:11min/100m. (As an excuse, the water was incredibly rough by the end of my session.)
I'd only just worked up to 9 of 10 100m sets at a sub 2:00min/100m pace so doubling up was destined to fail. Anyway I'll work at it and probably find after a few weeks that I'm struggling but could achieve an earlier goal readily.