And I use starters in relief and start relievers all the time (just watch those PCs on relievers as starters, in-game fatigue is a killer, so keep their IP/G in mind).

a pitcher at 100% should perform the same no matter how he was used in the past.
I often use SP in relief. Higher ip/g and sometimes priced better.
I tend to get more total innings from the SP role and believe they fatigue at a slightly faster rate in the relief role. though others have disagreed with this observation. Many years ago Admin claimed this was true at the time.

Do you have the post when admin agreed with this?

the role in which a pitcher throws shouldn’t matter with fatigue - the only exception being due to appearance fatigue. But that’s not due to the role but the usage.

that was definitely true in LIVE, starters would get tired more quickly when used as relievers.

Hmm, that’s interesting. I wonder what the reason was for live. I never played much live so I can’t speak much to that.

probably to prevent people from starting a lefty and then pulling him after one batter for a righty starter to then pitch the whole game against the vs LHP lineup

i've always operated under the assumption the LIVE fatigue model was the same as the non-LIVE, having two separate ones would be more work than you'd think WIS would put in.

I think I need to build a team to test this.

https://www.whatifsports.com/forums/Posts.aspx?topicID=490061&TopicsPage=0

FWIW. An old thread on this topic I saved to my favorites way back when.

I’m curious if it is just a live feature…idk why pitchers would fatigue differently because they came in relief vs starting. But will see what happens!

thanks for that post jmcraven

Posted by rbow923 on 2/15/2022 2:41:00 AM (view original):
a pitcher at 100% should perform the same no matter how he was used in the past.
I often use SP in relief. Higher ip/g and sometimes priced better.
I tend to get more total innings from the SP role and believe they fatigue at a slightly faster rate in the relief role. though others have disagreed with this observation. Many years ago Admin claimed this was true at the time.

I think this is due to the way appearance fatigue works and how most starters are used when put in relief

Posted by just4me on 2/15/2022 7:39:00 PM (view original):

Posted by rbow923 on 2/15/2022 2:41:00 AM (view original):
a pitcher at 100% should perform the same no matter how he was used in the past.
I often use SP in relief. Higher ip/g and sometimes priced better.
I tend to get more total innings from the SP role and believe they fatigue at a slightly faster rate in the relief role. though others have disagreed with this observation. Many years ago Admin claimed this was true at the time.

I think this is due to the way appearance fatigue works and how most starters are used when put in relief

Saw the old thread, which I remember reading back then, but mostly disregarding as its impact was mostly inconsequential. It is not as I surmised above related to the effect of appearance fatigue. It does appear to be a different rate of fatigue impact, still mostly inconsequential and something that would rarely be encountered except for with some of the 500+ IP guys or if tandems count as relievers in the coding... That said, it's something I'd like to explore more now...

I periodically move a SP to the pen to give relievers a breather. I try to keep their usage to 30-40 pitchers if possible. I rarely see significant falloff fatigue wise. Only in postseason when I might go with a shorter rotation do I stretch them out.

I am 99% sure that WIS considers Tandem B pitchers to be STARTERS, not relievers. For example, it is not necessary to check the relief box for a tandem B pitcher - he will still be used appropriately. I use tandems a lot and if there are any fatigue effects beyond what is known based on IP/G, they are not apparent to me for pitchers used in tandem.

I use starters as relievers frequently, but usually on short PCs as I'm usually trying to get them into as many games as possible, not maximize their pitches per game. So I usually have them on 15-30 PC ranges, not nearly enough to trigger what's discussed in the linked thread.

Only time I could see that come into play is like when I had the bounty for an 80 win pitcher and alot of people were using a 500+ IP guy in relief, but when I used Baldwin, Johnson, King, etc I didn't notice anything that seemed amiss or like their was a performance decline, but that also might be because they weren't coming into the game until the 3-5th inning, so they still weren't throwing enough pitches to be relevant to what was linked above.