I know adrenaline is a thing, but why does the race pace feel so much harder in a workout than a race?

I believe It has to do with the mental energy you put into a race vs an ordinary workout (plus of course adrenaline and taper) ... I mean when you start a track session you almost never have the mentality to push to your limits, you're always a bit conservative even if unconsciously. Probably the body reacts accordingly with a sort of "limiter" that prevents you from using 100% of your possibilities

Are you doing the same warmup for both? I always had a different warmup routine for races while I was in HS/College. I never questioned it and would say that I experienced what you described fairly often.

Nowadays I do basically the same warmup for workouts and races and they feel about the same.

Nobody effin knows. It is one of the most beautiful mysteries of running and a testament to the power of mindset on performance.

Spikes instead of trainers dummy.

It is not given that it is like this for everyone. With the wrong mental attitude, it can be the opposite. I would be happy that it is like this for two reasons:

1. that you then seem to enjoy and race well

2. that when it feels tough during training your are training your suffer ability well which can help when racing

So double good

Mixture of warm-up (if done correctly), tapering in the days or weeks prior, and adrenaline/environment.

I would agree with the poster above that warmup is probably as important as anything, which is why sometimes the middle or end of a workout feels easier than the beginning. But taper is also huge for me.

I wore trainers for my PR lol

Time of day

Level of Warmup

Adrenaline

Shoes

Mindset/Perception/Expectations

Rest

Prescence of other runners

For a lot of runners races are different from workouts for the above reasons. All these factors play a role, but mostly I think mindset/mentality has the biggest impact on why race v. Workout has a different feel.

The old "fight or flight" instincts kick in on race day.

And I often trained with my spikes lolol

It's the opposite for me.

You answered your own question in the thread title.

From my racing experience the mixture of tapering, adrenaline, carbo loading, pre-race rituals to get the mind focused, and taking extra steps to recovery in the days prior help me feel better maintaining a faster pace than what I do in workouts.

On the other hand, doing a workout after a long day of work with no taper, adrenaline, etc really does feel tough. It’s part of the magic of racing!

In practice, are you running your current times divided by 4 to get "race pace?" Or could you be running "goal pace" and calling it "race pace?"

^^^ This is how it should be. Always felt sorry for the ones who slayed workouts and were nowhere to be seen come race day. Definitely mental focus and the body knowing that it's go time and not just practice time. Pure beauty.

Agreed. I am definitely in the same camp as the original poster, but it's not true for everyone. Some of us feel it much more than others. I had a workout today doing 800s at 5K pace and it was flat out torturous. I always struggle with solo workouts. Put me in a race, though, and a switch flips and I can go so much faster effortlessly. For me it's all about competition and adrenaline. I'm a very competitive person. Sometimes this causes me anxiety which can be problematic, but overall, I reach a whole different level on race day.

But then of course you've got the workout heroes who always crush the workouts and tank the races.

I agree the first 400 of the mile always feels magical, but if it was too magical and you went out way too fast, it usually catches up with ya and makes the last 600 meters a struggle.

We called them "Wednesday World Champions"