What happened to my Deadlift?

[StrongWant]

I've recently gotten into powerlifting, raised my squat to 355x3, 225x1 Bench, and 440x1 Dead. However, recently my deadlift just crapped out on me. I've been PRing my back squat every week, and for the last four sessions I almost couldn't lock 315-365 out. Should I not be squatting and deadlifting in the same day anymore?

Routine is Powerlifting to Win: Transitioning Intermediate Auto Regulated

Monday is Pause squat, pause bench, deficit dead, cgbp

Wednesday is Front Squat, Incline Bench

Friday is Squat, Bench, Deadlift (9 RPE day)

(I low bar squat) + I'm 6'4 230 and 19 years old.

[BLK00TJ]

I tried putting heavy squats and heavy deadlifts together and it didn't go well at all for me. I can mix them at different intensities, but not both high. I lowbar as well so my backside is smoked when I'm done with squats.

[cirion0000]

Seconded on DL. My DL has tanked hard ever since I started trying to do DL and squat heavy same day. While I know I probably can't do 435 lb as converted from my max reps, I should at least be able to pull 405... and yet I failed to even do 355 despite 15 rep max 295 (the 15 rep max was done back when I did DL by itself, no squats).

Probably also gonna be forced to split DL away from squat days.

[StrongWant]

It's weird how I just can't do it suddenly! Have noticed form breakdown too at low weights. I guess I'm super fatigued from the squats. May try heavy squats monday and deads friday.

[breathinglife]

You're tired. I haven't had much luck DLing more than once a week, but that's just me.

It's not a bad idea to train deadlifts after squats, especially for newbies, just so you aren't super disappointed when you have to do that in competition and pull a lot less than you expect.

[eatcravemove]

I'm doing the 5x5 program right now and at most the program recommends deadlifting 2x/week, 1 set of 5 reps. This is intentional since overdoing the deadlift can be detrimental to your body.

Still new to weightlifting, but maybe try deadlifting first in your workout instead of at the end? For most lifters I've talked to, the first exercise they do tends to be the best since their muscles are fresh and not drained at all - then it just goes downhill from there. Likewise, is there a difference when you wait longer in-between sets in terms of how much you can lift? When I first started out I was doing sets as quickly as I could load/unload weights with my lifting partner. The moment I slowed down a bit and took longer breaks in-between sets, then the better I did.

[OldBobScoo]

Your cns is probably fried and youre not recovering enough. Doing heavy deads and squats the same week is gonna fry you after a while. Space it out. I do 5/3/1 and space out my heavy 5/3/1 DL day to be on a different week than my squat. Makes a big difference.