https://www.whatifsports.com/forums/Posts.aspx?topicID=466091&page=4&TopicsPage=0

Based on these posts made in 2013 (I don't know if hitter fatigue is different now, but I doubt it), it's non-linear and affects fielding more than hitting early on. I've usually prioritized keeping pitchers at 100%, position players at 93%+ (with a few exceptions).

Posted by RedRaiderLaw on 1/1/2022 3:18:00 AM (view original):
Going back to the example in my first post, same league, there are 2 instances of 2021 Frank Schwindel. First is full season for the one being played despite fatigue (home stadium is Busch II (.94)); the second example is on a team where his fatigue is managed to keep him at 100% (home is Exposition Park (.98)). Neither of these are on my team; I'm simply making observations as I try to learn more about the game..

Regular Season Batting Stats

Date	Opponent	%	AB	R	H	2B	3B	HR	RBI	BB	SO	SF	SH	HBP	SB/SBA	AVG	OBP	SLG	Box
12/8 am	AAA Heroes	100	1	0	0	0	0	0	0	0	1	0	0	0	0/0	.000	.000	.000	view
12/8 pm	AAA Heroes	100	4	1	0	0	0	0	0	0	2	0	0	0	0/0	.000	.000	.000	view
12/9 pm	@Rolling the Dice	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.000	.000	.000	view
12/9 pm2	@Rolling the Dice	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.000	.000	.000	view
12/10 am	Heroes & Zeros	100	1	1	1	0	0	0	0	0	0	0	0	0	0/0	.125	.125	.125	view
12/10 pm2	Heroes & Zeros	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.111	.111	.111	view
12/11 am	@Osoria Gorge	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.100	.100	.100	view
12/11 pm	@Osoria Gorge	100	1	1	1	0	0	0	1	0	0	0	0	0	0/0	.182	.182	.182	view
12/11 pm2	@Osoria Gorge	100	0	0	0	0	0	0	0	1	0	0	0	0	0/0	.182	.250	.182	view
12/12 am	Scrub a dub dub	100	1	0	1	0	0	0	0	0	0	0	0	0	0/1	.250	.308	.250	view
12/12 pm	Scrub a dub dub	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.231	.286	.231	view
12/13 am	Scrub a dub dub	100	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.286	.333	.286	view
12/13 pm2	AAA Plus One	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.267	.313	.267	view
12/14 pm2	@Russ & Chuck	100	1	1	1	1	0	0	1	0	0	0	0	0	0/0	.313	.353	.375	view
12/15 am	Russ & Chuck	100	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.353	.389	.412	view
12/15 pm	MINOR LEAGUE SURPRISE	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.333	.368	.389	view
12/15 pm2	@MINOR LEAGUE SURPRISE	100	1	0	0	0	0	0	0	0	1	0	0	0	0/0	.316	.350	.368	view
12/16 am	@Insufficient Funds	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.300	.333	.350	view
12/16 pm	@Insufficient Funds	100	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.333	.364	.381	view
12/17 am	@Insufficient Funds	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.318	.348	.364	view
12/17 pm	@Do You Feel Lucky?	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.304	.333	.348	view
12/17 pm2	Do You Feel Lucky?	100	3	0	1	0	0	0	0	0	0	0	0	0	0/0	.308	.333	.346	view
12/18 am	@Farrell/Ferrell	100	5	0	1	0	0	0	0	0	0	0	0	0	0/0	.290	.313	.323	view
12/18 pm	Farrell/Ferrell	100	5	2	4	1	0	0	2	0	0	0	0	0	0/0	.361	.378	.417	view
12/18 pm2	Buckle Up, Buddy	100	5	0	0	0	0	0	0	0	1	0	0	0	0/0	.317	.333	.366	view
12/19 am	Buckle Up, Buddy	100	5	0	2	0	0	0	0	0	2	0	0	0	0/0	.326	.340	.370	view
12/19 pm	Buckle Up, Buddy	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.319	.333	.362	view
12/19 pm2	@Miserly	100	5	2	2	0	0	0	0	0	1	0	0	0	0/0	.327	.340	.365	view
12/20 am	Miserly	100	4	0	0	0	0	0	0	0	1	0	0	0	0/0	.304	.316	.339	view
12/20 pm	@Maya Buttreeks	100	4	0	0	0	0	0	0	0	1	0	0	0	0/0	.283	.295	.317	view
12/20 pm2	Maya Buttreeks	100	4	1	1	0	0	1	1	0	0	0	0	0	0/0	.281	.292	.359	view
12/21 am	@Ed & Lance	100	4	0	1	0	0	0	0	0	1	0	0	0	0/0	.279	.290	.353	view
12/21 pm	@Ed & Lance	100	4	0	2	0	0	0	1	1	0	0	0	0	0/0	.292	.311	.361	view
12/21 pm2	@Ed & Lance	97	4	0	1	0	0	0	0	0	0	0	0	0	0/0	.289	.308	.355	view
12/22 am	The Splinter, Eck and pray for a Wreck!	94	3	1	1	0	1	0	1	0	0	0	0	0	0/0	.291	.309	.380	view
12/22 pm	The Splinter, Eck and pray for a Wreck!	92	3	0	3	0	0	0	2	2	0	0	0	0	0/0	.317	.349	.402	view
12/22 pm2	The Splinter, Eck and pray for a Wreck!	88	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.325	.356	.410	view
12/23 am	@Lucky AAA ~~~	90	4	2	1	0	0	1	2	1	0	0	0	0	1/1	.322	.359	.437	view
12/23 pm2	@Lucky AAA ~~~	88	4	0	0	0	0	0	0	0	1	0	0	0	0/0	.308	.344	.418	view
12/24 am	@Say When	86	1	1	1	0	0	0	1	0	0	0	0	0	0/0	.315	.351	.424	view
12/24 pm	Say When	87	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.312	.347	.419	view
12/24 pm2	Managing Chaos	88	5	1	2	0	0	0	0	0	1	0	0	0	0/0	.316	.350	.418	view
12/25 am	@Managing Chaos	85	5	1	1	0	0	0	1	0	1	0	0	0	0/0	.311	.343	.408	view
12/25 pm	@Heroes & Zeros	81	4	0	0	0	0	0	0	0	0	0	0	0	0/0	.299	.330	.393	view
12/25 pm2	@Heroes & Zeros	79	4	0	1	0	0	0	0	0	0	0	0	0	0/0	.297	.328	.387	view
12/26 am	@Heroes & Zeros	77	4	0	2	1	0	0	1	0	0	0	0	0	0/0	.304	.333	.400	view
12/26 pm	@Scrub a dub dub	75	4	2	4	1	0	0	0	1	0	0	0	0	0/0	.328	.360	.429	view
12/27 am	@Scrub a dub dub	75	4	0	0	0	0	0	0	0	1	0	0	0	0/0	.317	.349	.415	view
12/27 pm	@AAA Plus One	73	5	1	1	1	0	0	1	0	1	0	0	0	0/0	.313	.343	.414	view
12/27 pm2	@AAA Plus One	70	5	4	5	0	0	3	5	1	0	0	0	0	1/1	.338	.371	.504	view
12/28 am	@AAA Plus One	67	4	0	1	0	0	0	0	0	1	0	0	0	0/0	.336	.368	.496	view
12/28 pm2	Insufficient Funds	67	5	0	3	0	0	0	2	0	1	0	0	0	0/0	.345	.376	.500	view
12/29 am	Insufficient Funds	65	6	0	0	0	0	0	0	0	0	0	0	0	0/0	.331	.361	.480	view
12/29 pm	Walsh's Wombats	62	4	0	0	0	0	0	0	0	1	0	0	0	0/0	.322	.352	.467	view
12/30 pm	Rolling the Dice	65	4	0	2	1	0	0	0	0	0	0	0	0	0/0	.327	.356	.474	view
12/30 pm2	Rolling the Dice	63	5	0	2	0	0	0	1	0	0	0	0	0	0/0	.329	.357	.472	view
12/31 am	@AAA Heroes	61	4	1	0	0	0	0	0	1	0	0	0	0	0/0	.321	.353	.461	view
Season Totals		--	165	23	53	6	1	5	23	8	19	0	0	0	2/3	.321	.353	.461	--

Regular Season Batting Stats

Date	Opponent	%	AB	R	H	2B	3B	HR	RBI	BB	SO	SF	SH	HBP	SB/SBA	AVG	OBP	SLG	Box
12/8 pm	The Splinter, Eck and pray for a Wreck!	100	3	1	1	0	0	1	2	2	0	0	0	0	0/0	.333	.600	1.333	view
12/8 pm2	The Splinter, Eck and pray for a Wreck!	100	5	2	2	2	0	0	1	0	1	1	0	0	0/0	.375	.455	1.000	view
12/10 pm2	AAA Heroes	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.333	.417	.889	view
12/11 pm	@Ed & Lance	100	1	0	0	0	0	0	0	0	1	0	0	0	0/0	.300	.385	.800	view
12/11 pm2	@Ed & Lance	100	1	0	1	0	0	0	1	0	0	0	0	0	0/0	.364	.429	.818	view
12/12 pm	@AAA Plus One	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.333	.400	.750	view
12/12 pm2	@AAA Plus One	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.308	.375	.692	view
12/13 pm	@Scrub a dub dub	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.286	.353	.643	view
12/13 pm2	@Scrub a dub dub	100	1	1	1	0	0	0	0	0	0	0	0	0	0/0	.333	.389	.667	view
12/14 pm	@Scrub a dub dub	100	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.375	.421	.688	view
12/14 pm2	@Say When	100	2	1	1	0	0	0	2	0	0	0	0	0	0/0	.389	.429	.667	view
12/15 pm	Walsh's Wombats	100	1	0	1	1	0	0	0	0	0	0	0	0	0/0	.421	.455	.737	view
12/15 pm2	@Walsh's Wombats	100	1	1	1	1	0	0	3	0	0	0	0	0	0/0	.450	.478	.800	view
12/16 am	No Whammies	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.429	.458	.762	view
12/16 pm2	No Whammies	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.409	.440	.727	view
12/17 pm	@Managing Chaos	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.391	.423	.696	view
12/17 pm2	Managing Chaos	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.375	.407	.667	view
12/18 pm	Maya Buttreeks	100	1	1	1	0	0	0	0	0	0	0	0	0	0/0	.400	.429	.680	view
12/19 am	Heroes & Zeros	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.385	.414	.654	view
12/19 pm	Heroes & Zeros	100	4	1	1	0	0	0	0	1	1	0	0	0	0/0	.367	.412	.600	view
12/19 pm2	@Russ & Chuck	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.355	.400	.581	view
12/20 am	Russ & Chuck	100	1	0	0	0	0	0	0	0	1	0	0	0	0/0	.344	.389	.563	view
12/20 pm	@Do You Feel Lucky?	100	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.364	.405	.576	view
12/21 pm	@Buckle Up, Buddy	100	4	0	1	0	0	0	0	0	1	0	0	0	0/0	.351	.390	.541	view
12/21 pm2	@Buckle Up, Buddy	100	1	0	1	0	0	0	1	0	0	0	0	0	0/0	.368	.405	.553	view
12/22 am	Osoria Gorge	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.359	.395	.538	view
12/22 pm	Osoria Gorge	100	1	0	0	0	0	0	0	0	1	0	0	0	0/0	.350	.386	.525	view
12/22 pm2	Osoria Gorge	100	1	1	1	0	0	0	0	0	0	0	0	0	0/0	.366	.400	.537	view
12/23 am	@Rolling the Dice	100	5	0	0	0	0	0	0	0	1	0	0	0	0/0	.326	.360	.478	view
12/23 pm	@Rolling the Dice	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.319	.353	.468	view
12/23 pm2	@Rolling the Dice	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.313	.346	.458	view
12/24 am	@Interesting Conundrum	100	4	0	0	0	0	0	0	0	1	0	0	0	0/0	.288	.321	.423	view
12/24 pm	Interesting Conundrum	100	0	1	0	0	0	0	0	1	0	0	0	0	0/0	.288	.333	.423	view
12/24 pm2	Farrell/Ferrell	100	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.302	.345	.434	view
12/25 am	@Farrell/Ferrell	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.296	.339	.426	view
12/25 pm	@AAA Heroes	100	5	1	2	0	0	0	1	0	0	0	0	0	0/0	.305	.344	.424	view
12/25 pm2	@AAA Heroes	100	1	0	1	1	0	0	0	0	0	0	0	0	0/0	.317	.354	.450	view
12/26 pm	AAA Plus One	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.311	.348	.443	view
12/27 pm	Scrub a dub dub	100	4	0	0	0	0	0	0	0	2	0	0	0	0/0	.292	.329	.415	view
12/27 pm2	Scrub a dub dub	100	1	0	0	0	0	0	0	0	1	0	0	0	0/0	.288	.324	.409	view
12/28 am	Scrub a dub dub	100	4	0	0	0	0	0	0	0	0	0	0	0	0/0	.271	.307	.386	view
12/28 pm	@No Whammies	100	5	2	3	0	0	1	2	0	1	0	0	0	0/0	.293	.325	.440	view
12/28 pm2	@No Whammies	100	1	0	0	0	0	0	0	0	1	0	0	0	0/0	.289	.321	.434	view
12/29 am	@No Whammies	100	1	0	1	0	0	0	0	0	0	0	0	0	0/0	.299	.329	.442	view
12/29 pm	Toad, the Wet Sprocket	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.295	.325	.436	view
12/29 pm2	@Toad, the Wet Sprocket	100	5	0	1	0	0	0	0	0	0	0	0	0	0/0	.289	.318	.422	view
12/30 pm	Lucky AAA ~~~	100	4	0	1	0	0	0	0	0	0	0	0	0	0/0	.287	.315	.414	view
12/30 pm2	Lucky AAA ~~~	100	0	0	0	0	0	0	0	1	0	0	0	0	0/0	.287	.323	.414	view
12/31 am	@The Splinter, Eck and pray for a Wreck!	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.284	.319	.409	view
12/31 pm2	@The Splinter, Eck and pray for a Wreck!	100	5	3	3	3	0	0	1	0	0	0	0	0	0/0	.301	.333	.452	view
1/1 am	Ed & Lance	100	1	0	0	0	0	0	0	0	0	0	0	0	0/0	.298	.330	.447	view
Season Totals		--	94	16	28	8	0	2	14	5	13	1	0	0	0/0	.298	.330	.447	--

And also, to be fair, I this is a horrible league to use as an example of fatigue effects. Most of these teams play closer to $60m, not $80m, and a significant number of pitchers are low quality. My best pitcher is ‘96 Danny Darwin and my 100% ‘87 Ezra Sutton is hitting .353/.392/.471 through 166 PA.

I’d guess half the pitchers in the league are 4-5 effectiveness AAA pitchers. And (without looking) I’d guess the Frank at 100% has probably faced a greater share of the Ed Walsh’s in the league.

Grizzly Law: Even a small advantage is HUGE in the playoffs. It is why I go to extreme lengths to stay at 100% for all my starters. I mean, deep in he playoffs or TOC. You have to let them run obviously.

As for changing our mind? This LAW is the major component of why my play-off winning PCT is higher than my regular season.

I am running an OL team right now to test this.

It was once revealed that a .300 hitter loses .0015 in batting average for every 1% drop in stamina. If you believe everything we're told.
Might not be noticable in a small sample size.

Contrarian had a post about this once before, I think using George Brett as an example and using excel to simulate coin flips to show a “range” than can be expected.

But using that information (assuming it’s accurate), you could say that right now, instead of being a RL .373 hitter, Iglesias at 70% would be a .328 hitter. I think it’s perfectly reasonable for a “.328” hitter to perform well above that when playing in a hitters park like Baker Bowl.

Posted by ncmusician_7 on 1/2/2022 6:19:00 PM (view original):
https://www.whatifsports.com/forums/Posts.aspx?topicID=466091&page=4&TopicsPage=0

Based on these posts made in 2013 (I don't know if hitter fatigue is different now, but I doubt it), it's non-linear and affects fielding more than hitting early on. I've usually prioritized keeping pitchers at 100%, position players at 93%+ (with a few exceptions).

IMO, this is how it should be. Looking at real life - let's say a player has played in 20 straight games and is tired. It'll likely slow him a bit on the field (range) and the bases. But one AB at the plate doesn't really take a ton of physical effort. Most hitters can likely perform without much deficiency at the plate if they're tired.