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Posts by David Appelman

We will get that fixed.

2 days ago 3 0 1 0
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The Community Blog Is Back! The Community Blog is back, and we’re looking for submissions.

We do still publish community research! blogs.fangraphs.com/the-communit...

5 days ago 2 1 1 0
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We're soft launching a new FanGraphs Lab tool, "Paired Pitches." If you're enough of a baseball degen to follow me on social media, you're our target audience. I'd love to hear what you think:
www.fangraphs.com/lab/paired-pitches

6 days ago 60 12 13 5

We've been sporadically having some issues with bots and have needed to make site access stricter on a number of occasions this season so that the site is still usable. If you run into this in the future, best advice is to try again later. We'd generally like to not do this, but we kind of have to.

1 week ago 1 0 1 0

We update KBO / NBP around midnight ET, so we have games from 4/3, but not the completed 4/4 games yet.

1 week ago 1 0 0 0

I see what you mean. I just removed that ad until we can make sure it has a close out button. I might take 10-15 minutes to propagate the change, depending on your location.

3 weeks ago 0 0 1 0

The video ads should have a close out button. If you are having issues please send a screenshot to support@fangraphs.com and I’ll investigate.

Membership continues to be the only real way to sustain FanGraphs if you care about it. It’s completely ad free and has lots of Members features.

3 weeks ago 1 0 1 0
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Introducing the FanGraphs Lab The Lab is a collaboration between the writing team and the engineering team here at FanGraphs, a joint effort to create more ways to sort through and visualize the huge crush of data that pervades…

Introducing the FanGraphs Lab blogs.fangraphs.com/introducing-...

1 month ago 45 12 3 13

This is for all pitchers who had at least 50% GS/G.

2 months ago 1 0 0 0
Starting pitchers by IP bucket, projections vs actual playing time.

Starting pitchers by IP bucket, projections vs actual playing time.

There's definitely some over projection in the 125-175 range, but I don't think it's that crazy.

2 months ago 0 0 2 0
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I'm not saying there isn't a better way, but since this is a closed system, it's going to matter less since it's internally consistent. Like, if I over project wOBA in a projection system by 20% for everyone and then run projected standings off that system, it's not going to change much.

2 months ago 0 0 0 0
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An Even Newer Way of Looking at Depth Let’s revisit our method for measuring each team’s ability to withstand injury.

And it will just compress things. Team depth is hard to simulate, but we tried this very thing: blogs.fangraphs.com/an-even-newe...

2 months ago 0 0 1 0
Projected number of players in each plate appearances bucket vs actual plate appearances.

Projected number of players in each plate appearances bucket vs actual plate appearances.

This was the actual breakdown last year of projected PA vs actual PA buckets. When you're doing this, you're going to overshoot some bucket, I would think, because you can't predict injuries. You can just give everyone a bit less playing time, but the end result is going to look similar.

2 months ago 0 0 2 0

The actual percentages are listed here: www.fangraphs.com/teams/blue-j... for instance. Someone could come up with their own method of turning these into PA / IP if they wanted and then prorate whatever projection system they choose.

2 months ago 0 0 1 0

They're the same. We just take the percentages and turn them into plate appearances. Also, each projection system doesn't use the same playing time projections. Any of the "Depth Chart" projections use our projections, along with OOPSY, but Steamer, ATC, ZiPS, and THE BAT/X use different ones.

2 months ago 0 0 0 0

The playing time projections are done specifically with the projected standings in mind, even if there is over projection on the back end. They're done via playing time percentages, not plate appearances so we're sure not to over projecting any team or position.

2 months ago 0 1 1 0

Please send a note to support@fangraphs.com with the link where things aren't working and I'll take a look. The standard settings seem to be working, so it might be something very specific to your league.

2 months ago 1 0 0 0
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The Retro FanGraphs Sweatshirt and Women’s Quarterzip Sweater Are Now Available! Get yours while supplies last!

InstaGraphs: The Retro FanGraphs Sweatshirt and Women’s Quarterzip Sweater Are Now Available! blogs.fangraphs.com/instagraphs/...

2 months ago 27 3 0 13
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Major League Leaderboards - 2012 to 2025 - Batting | FanGraphs Baseball

There isn't a way on the player pages yet. You would have to do something like this on the leaderboards: www.fangraphs.com/leaders/majo...

3 months ago 1 0 1 1
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David Appelman’s FanGraphs Walk-Off results.

David Appelman’s FanGraphs Walk-Off results.

👀

4 months ago 6 1 0 1

Statcast xwOBA doesn't exist prior to 2015, so it's only for his 2016 playoff appearance.

5 months ago 1 0 1 0
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The new scoreboard is launched 🎉

6 months ago 12 3 0 0

That’s a 403 forbidden error. We have had serious problems with bots in the past couple months and when it’s impacting site usability we’ve had to block all automated traffic. It’s not permanent and you should typically be able to try again in a couple hours and it will work.

6 months ago 0 0 1 0
The new, new black FanGraphs mug.

The new, new black FanGraphs mug.

New mugs!

6 months ago 6 0 1 0

Who wants a really, really hard job at a really, really good place to work?

7 months ago 19 9 2 0
A FanGraphs Members Only jacket.

A FanGraphs Members Only jacket.

Testing out new FanGraphs merch ideas....

7 months ago 27 0 1 0

If FanGraphs were to offer the option to place a custom message on a player page (or even a section of the site) is that something you would be interested in? We are exploring ways of supplanting advertising revenue with more direct ways of funding our efforts.

10 months ago 3 1 6 0

This is a bit of a mystery on our end too. I'm going to have to ask our image provider about it.

11 months ago 1 0 1 0
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Sorry, made a mistake here. For 2024 Coors is .99. Diamondbacks with roof open is 1.14, so Coors is definitely a lot lower. I was looking at an adjusted air density calculation that doesn't give a correct picture.

1 year ago 1 0 0 0

Average air density for 2025 games in AZ (measured near Chase) is considerably lower at 1.141 than the average at any park location during game time in-season. Lowest is 1.173 and that's Chase and that's only when the roof is open.

1 year ago 1 0 1 0