Day 2 of my Ironman Arizona build. Finished a 3k swim with a 750m TT to get some numbers and see what I need to work on. Used my tempo trainer to try to stay under 1:20/100m pace. It would beep every 40 seconds and hopefully I would have swam 50m in that time. I was on pace until about 400m and then I started slowing down and not finishing my stroke.
This has been an issue of mine when I get tired- I want to keep my stroke rate up and I sacrifice fully finishing my stroke to maintain that. It results in much slower times! I will be (and have been) working on it more and more. I could also tell today I need to spend some more time working my upper swim limits. Getting more into <1:10/100m paced intervals will greatly help TT sessions like today feel much easier to finish my stroke and stay on pace.
Make every session have a purpose!