Open Side Menu Go to the Top
Register
2018 Fantasy Baseball Thread 2018 Fantasy Baseball Thread

04-05-2018 , 05:48 AM
What are some good fantasy baseball podcasts? Gonna check out fangraphs later today
2018 Fantasy Baseball Thread Quote
04-05-2018 , 05:49 AM
Quote:
Originally Posted by cs3
In 5x5 roto Id way rather Margot and Hamilton than Belt, just for the SB upside. And that's coming from a guy who 100% disregards steals in every draft.
Plus Margot might actually hit more HR than Belt.
And he probably doesn't work concussion therapy into his daily routine!

Seems like Donaldson can hit just fine. I guess he can DH indefinitely if needed.
Agree with this although I would probably do the deal as is.
2018 Fantasy Baseball Thread Quote
04-05-2018 , 06:37 AM
Quote:
Originally Posted by IRAZERIVER
What are some good fantasy baseball podcasts? Gonna check out fangraphs later today
Flags fly forever
2018 Fantasy Baseball Thread Quote
04-05-2018 , 07:17 AM
Quote:
Originally Posted by IRAZERIVER
What are some good fantasy baseball podcasts? Gonna check out fangraphs later today
Sleeper and the Bust is good. My favorite is BaseballHQ Radio.
2018 Fantasy Baseball Thread Quote
04-05-2018 , 08:40 AM
Quote:
Originally Posted by Rococo
Curious to know what people think about the following rant:

The easiest way to come up with player values is to project a static set of stats, assume 100% certainty in achieving the projection, and then derive a value. As best I can tell, this is what every tout does. I'm not sure whether HQ and BP do the exercise correctly, but they probably get close. For those who play poker, this is similar to putting your opponent on his most likely hand, and designing an optimal strategy against that specific hand. It's not simple to model, especially for beginners, but you can do it without too much effort.

Like opponents in poker, baseball players have a range of outcomes (hands), not just a mean or median outcome (hand). Proper valuation should be based on the entire range of outcomes (hands), not the mean or median. HQ and BP seem to be only vaguely aware of this issue. HQ assigns health grades and reliability grades, but it is not clear how, if at all, they factor into HQ's player values. Shandler also has talked for a few years about his Mayberry method, which basically amounts to disregarding minor differences in player projections. (That's an illogical solution to the problem but at least demonstrates awareness that values should correlate to a range of outcomes.) BP's player cards purport to show projections for the top 0-10% of the possible range, top 10-20% of the possible range, etc. I doubt that there is much science behind those ranges and I don't see how, if at all, they are included in BP's valuation projections. In sum, at best, BP and HQ seem to arrive at values based on some projection of the mean production for a particular player.

The range of outcomes is different (i.e. broader) and less predictable for certain stat categories than it is for others. This is due to two factors. First, some stat categories (wins, for example) are more influenced by chance than others. Second, some skills (not statistical results, but skills) presumably are harder to replicate year over year than others.

Variation in outcome among players is harder to address, but you can nibble on the edges rather easily. For example, the range of outcomes surely is broader for Luis Severino than it is for Max Scherzer, if only because of age and length of track record.

I suspect that most experienced fantasy players intuitively attempt to account for these issues, but I am aware of no serious effort to incorporate these issues into a player valuation model. I am not sure how the breadth of ranges would impact value. Common sense suggests that, if you have two players with the same mean outcomes, the player with the narrower range of outcomes should be worth more. Maybe that's correct, but maybe not. You need significant positive deviations from expectation in order to win a large competitive league. Put another way, maybe the answer depends on the strength of one's keeper list.

This sort of modeling would be beyond elementary for a Wall Street trading desk. They have been using probabilistic models for decades.
The static set of stats you see is a range. Just an average of those to make it easier to read.

Most "projections" are some sort of weighted average of the last three seasons with some factors placed in for advanced statistics (ie increasing flyball rate, better eye %, increasing hard hit %) and of course for the feeling of the projector.

The idea is not to take them as gospel but as a guide. I need stolen bases so I'll take this guy projected to steal 25. My power guys have poor BA, I'll take this guy projected to hit .295.

HQ does have a health grade which is generally hard to understand because of the randomness of injuries. Last year a poor health grade and injury history kept people away from Stanton. Plays 155 games and smashes. Draft Mad Bum and his A+ health grade and you get half a season in 1 1/2 years.
2018 Fantasy Baseball Thread Quote
04-05-2018 , 09:02 AM
Quote:
Originally Posted by Sluss
Sleeper and the Bust is good. My favorite is BaseballHQ Radio.
Quote:
Originally Posted by NDfan
Flags fly forever
Thanks guys. I'll check these out.
2018 Fantasy Baseball Thread Quote
04-05-2018 , 08:38 PM
It took me several years to realize this, but the CBS fantasy baseball podcast is infinitely superior to the ESPN fantasy baseball podcast
2018 Fantasy Baseball Thread Quote
04-05-2018 , 11:46 PM
Hopefully no one in this thread drafted knebel in the 6th
2018 Fantasy Baseball Thread Quote
04-06-2018 , 09:29 AM
Quote:
Originally Posted by movieman2g
I feel like this is where the wheels come off for you.

Also it doesn't sound like you watch or have ever watched baseball before?
I don't think you read my post. I'm not arguing that the bolded is the correct way to value.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 09:32 AM
Quote:
Originally Posted by Sluss
The static set of stats you see is a range. Just an average of those to make it easier to read.

Most "projections" are some sort of weighted average of the last three seasons with some factors placed in for advanced statistics (ie increasing flyball rate, better eye %, increasing hard hit %) and of course for the feeling of the projector.

The idea is not to take them as gospel but as a guide. I need stolen bases so I'll take this guy projected to steal 25. My power guys have poor BA, I'll take this guy projected to hit .295.

HQ does have a health grade which is generally hard to understand because of the randomness of injuries. Last year a poor health grade and injury history kept people away from Stanton. Plays 155 games and smashes. Draft Mad Bum and his A+ health grade and you get half a season in 1 1/2 years.
Of course I don't take projections as gospel. Even weighted averages fail to properly account for volatility. Take the following two players as an example, using HRs as the relevant stat and three possible outcomes:

Player A -- 20 HR (50% chance), 15 (25% chance), 25 HRs (25% chance)
Player B -- 20 HRs (20% chance), 10 HRs (40% chance), 30 HRs (40% chance)

The projected number of home runs for each player using a weighted average is 20, but the error bar in the projection, on both the high and the low side, is much wider for Player B than for Player A. And the size of the error bar affects value.

Last edited by Rococo; 04-06-2018 at 09:40 AM.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 09:35 AM
Quote:
Originally Posted by Iwreckshop
Sounds like a Monte Carlo simulation
This is pretty much what I have in mind. I don't think that any tout's player valuations are based on Monte Carlo simulations.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 09:37 AM
Relative no0b to fantasy baseball here. In a weekly league what do I do with Othani now that he's raking? Do I play him an just accept that he's only hitting 3-4 times in the week? Or is his AB volume too low to put him in a lineup that is set for the entire week?
2018 Fantasy Baseball Thread Quote
04-06-2018 , 11:33 AM
You can't play him in weekly unless you know hes going to DH a minimum 4 games, and that's pretty unlikely.

Plus, it's been 3 games. No doubt the tools are for real, but lolsample size.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 12:28 PM
Quote:
Originally Posted by Rococo
I don't think you read my post. I'm not arguing that the bolded is the correct way to value.
I did read your post, I was making what's commonly known as a joke.

In poker there are 52 cards in a deck, so you can make more scientific/analytical decisions. That's just not the same in fantasy sports, especially baseball. Like Sluss said, there's a of data and then guess work. But at the end of the day, you have to combine stats, injuries, managerial decisions, your own personal strategy, and then over time, your own gut. And watching the game helps more than you think.

I always like remembering this quote too:

"They give you a round bat and they throw you a round ball and they tell you to hit it square." - Willie Stargell
2018 Fantasy Baseball Thread Quote
04-06-2018 , 02:12 PM
Quote:
Originally Posted by movieman2g
I did read your post, I was making what's commonly known as a joke.

In poker there are 52 cards in a deck, so you can make more scientific/analytical decisions. That's just not the same in fantasy sports, especially baseball. Like Sluss said, there's a of data and then guess work. But at the end of the day, you have to combine stats, injuries, managerial decisions, your own personal strategy, and then over time, your own gut. And watching the game helps more than you think.

I always like remembering this quote too:

"They give you a round bat and they throw you a round ball and they tell you to hit it square." - Willie Stargell
I watch plenty of baseball. Sadly, I'm pretty sure it is useless when it comes to doing well at fantasy sports. And I'm not really asking questions for the purpose of managing my own fantasy teams.

There are a significant number of pay sites out there that will generate auction values according to the parameters of your specific league. As best I can tell, the values always are tied to the projected performance for those players. I guess I'm proposing that all those models are flawed for more or less the same reason -- because they fail to account for volatility. Put another way, even if those models are based on excellent projections of weighted average outcomes, the valuations don't account for dispersion around the projected outcome. I'm not sure that this flaw is pronounced enough to make a competing model noticeably superior to the existing models, but I'm quite certain that failing to account for dispersion is a flaw.

One relatively simple shortcut would be to project performance in deciles, come up with a valuation for the projected performance in each decile, and then take compute the weighted average of the player values for each decile. That would be imperfect, but almost certainly more accurate than current models.

Last edited by Rococo; 04-06-2018 at 02:19 PM.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 05:06 PM
Quote:
Originally Posted by Rococo
There are a significant number of pay sites out there that will generate auction values according to the parameters of your specific league.
The best one I've found is free on fangraphs. Why would anyone pay for something inferior?



RE: volatility
Basically, who cares?
There are so many more important but unpredictable parameters in baseball that I can't see trying to create a model based on volatility being worthwhile at all.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 05:30 PM
i honestly didnt even know there were paid sites
2018 Fantasy Baseball Thread Quote
04-06-2018 , 09:49 PM
Man I'm not feeling all that great about Castillo right now.
He's only my SP4 in the one league managed to get him, but I expected a lot more here in the early going. Seems pretty hittable so far.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 10:15 PM
yeah i just traded for him and watched most of the game too, didnt seem like that much bite on his stuff. hopefully it's just cause it was rainy the whole game? but not super confident about him.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 10:30 PM
I thought the price was a little too high in most of my drafts, so also only ended up with 1 share of Castillo. I wouldn't worry too much yet; he has 4 legit pitches and usually pretty good command. A lot of young pitchers just don't have much experience throwing in cold weather and a baseball can have a completely different feel. I'll be trying to buy if owners are ready to cut him loose this early.
2018 Fantasy Baseball Thread Quote
04-06-2018 , 11:04 PM
Quote:
Originally Posted by LFC_USA
Relative no0b to fantasy baseball here. In a weekly league what do I do with Othani now that he's raking? Do I play him an just accept that he's only hitting 3-4 times in the week? Or is his AB volume too low to put him in a lineup that is set for the entire week?
Quote:
Originally Posted by cs3
You can't play him in weekly unless you know hes going to DH a minimum 4 games, and that's pretty unlikely.

Plus, it's been 3 games. No doubt the tools are for real, but lolsample size.
soooo I could be wrong...

He just hit another absolute bomb just left of dead center. Went completely over the batters eye, well up into the rock pile. Swing looked effortless too. Amazing!
2018 Fantasy Baseball Thread Quote
04-06-2018 , 11:52 PM
Castillo had 2 really bad match ups so far between the Nationals who are a good hitting team and today the combo of weather/ump/pirates not being a high strikeout team so I wouldn't worry about his results too much. That being said I watched today's game and his control was worrisome especially on his change up.
2018 Fantasy Baseball Thread Quote
04-07-2018 , 09:18 PM
So glad I got gerrit Cole this year....he's dealing
2018 Fantasy Baseball Thread Quote
04-08-2018 , 09:52 AM
I've stared at this too long. Please help and eliminate two of the following for next week. 5x5 roto.

Lester vs. PIT (Brault)
Morton vs. TEX (Hamels)
Tanaka @ BOS (Price)
Porcelllo vs. NYY (?)
Manaea @ LAD (Wood)
Nola vs. CIN (Bailey)

My current plan is to sit Nola and Porcello.
2018 Fantasy Baseball Thread Quote
04-08-2018 , 10:02 AM
Porcello manaea
2018 Fantasy Baseball Thread Quote

      
m