Hello hydrosloth I’ve been on some swim focused training last 3 months and I’m no great swimmer but here is a few things I can say as someone of about ur level: 32min 1900m 1.04ish IM
1 swim 3 times a week stay same 4 times minor improvements 5 times mod improvement
2 every work out every length every stroke is meaningful and should be done with purpose. The intervals are less relevant than the focus. Eg warm up is very slow and easy after initial 100m at very easy pace then it’s concentrate on counting strokes and 1 input at a time eg rotation. Breathing timing. Hand position during rexovery. Correct hand entry each stroke. Almost 11 no rush the catch. Good streamline off the wall. One focus each 25 or 50m until locked in then to the next. Total warm up all easy maybe 400-600m. Count strokes regularly throughout
3 drills every workout if u can. Finger drag, underwater recovery, side kick, fist swimming sculling etc. Every drill with a purpose no rushing. Can mix into warm up or as a part before u step up to 4. Also learning the other strokes and can add a medley into the warm up or a few lengths of something else
4 towards end of warm up speed changes a few lengths with either 10m hard rest all dap pace or vice versa.
5 use gear sparingly. Kickboard sometimes but better to kick no board. Pull bouy only once u get leg fatigue or if bike double session so u can keep going. Paddles near end extra load. Flippers only to lock in speicifc movement eh body dolphin. I personally rate ankle bands for emphasising front quadrant not rushing the catch and snorkel for drills. That’s sbout it
6 main set. Vary it 10x100 20x50 6x300 8x250 pyramid etc. Vary from short send off highspeeds to very hard longer rests etc, that’s beyond me to comment.
u say u doing 300s. What is purpose of this. If I had to guess it’s to learn 2 things 1 swim efficiently at race pace and 2 know your sustainable race pace, hit that andalso be able to shift gears between overpacing eg pulling up to a person to draft or a bouy, race pace and easier all day pace. Swim fast requires a lot of time at race pace. Not z2 unlike running or cycling. So that might look like 6x300m broken into 100m all day pace into 150m race pace into 50m overpace with 15sec rest. 6x300m all at race pace if u can handle that 15sec rest. Or 50m hard then 250m race pace 4ecovery during race pace
Every interval every length mindful to hit same pace thinking about 1 thing same as during warm up. No cross over, almost 11 not rush the catch high elbow recovery etc etc. Count strokes sometimes
After finish all that then do a kick set but kicking many lengths I kind of don’t see the point to do 300m of kicking especially with fins. 4x50m maybe enough.
The thing I’ve learned is to think more like a swimmer and it’s helped me a lot to always be thinking why and what rather than my previous way of just show up and knock out 3km or whatever. Different way, mentally more draining but stops the cycle of my ultra s++t technique covered up by strong endurance fitness and good body shape
Hope this beginner viewpoint helps. I find a lot of real swimmers are super helpful