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Sabermetrics 101

An Introduction to Sabermetric Theory

Small Sample Sizes and Player Defense: OAA Might Just Be Okay

The game is evolving, and a longstanding trope of sabermetrics is beginning to fall

An Idiot’s Guide to Advanced Statistics: FIP > ERA

Simple but important.

An Idiot’s Guide to Advanced Statistics: wOBA and wRC+

These two stats are at the core of much of our hitting analysis here at LL, but how do they work?

What stats to pay attention to during Spring Training

Spring training stats don’t matter, until they do.

An Idiot’s Guide to Advanced Statistics: The Basics - WPA and WAR

I’m here to learn y’all some things, real simple-like.

The Season's Over. Let's POWER RANK Office Formats

Improve your day-to-day life, because the Mariners aren't going to make you happy.

LL year in review: The new era begins

The games stopped, Jerry Dipoto got hired, and we all got down to waiting.

WPA and those charts we use

Ever wondered what the charts are that we post after most games? Here you go.

FAME and the Mariners

A theoretically fun, pragmatically useless new statistic that measures not how good a player was, but how good people thought they were.

Sabermetrics 101: Wrap-Up (And Announcement!)

Sabermetrics 101: Wrapping up the series.

Sabermetrics 101: Fielding

Sabermetrics 101: Fielding

Sabermetrics 101: Batting

Sabermetrics 101: Batting

Sabermetrics 101: Pitching

Sabermetrics 101: Pitching and the Evaluation Thereof

Sabermetrics 101: Data

Sabermetrics 101: Data

Sabermetrics 101: WPA and Leverage Index

Sabermetrics 101: WPA and Leverage Index

Sabermetrics 101: Splits

Sabermetrics 101: Splits

Sabermetrics 101: Sample Sizes

Sabermetrics 101: Sample Sizes

Sabermetrics 101: Aging Curves

Sabermetrics 101: Aging Curves

Sabermetrics 101: League Equivalencies

Sabermetrics 101: League Equivalencies

Sabermetrics 101: Park Factors

Sabermetrics 101: Park Factors

Sabermetrics 101: Positional Adjustment

Sabermetrics 101: Positional Adjustment

Sabermetrics 101: The Isolation Problem

Sabermetrics 101: The Isolation Problem. Why we separate a player's performance from his teammates, and when.

Sabermetrics 101: Replacement Level

Sabermetrics 101: Replacement Level

Sabermetrics 101: Financial and Roster Constraints

Sabermetrics 101: Financial and Roster Constraints.

Sabermetrics 101: Rate vs. Counting Stats

Sabremetrics 101: Rate vs. Counting Stats

Sabermetrics 101: BaseRuns

Sabremetrics 101: Baseruns. How do we derive a more accurate run estimator?

Sabermetrics 101: Linear Weights

Sabermetrics 101: Linear Weights. Converting events on the baseball field to runs.

Sabermetrics 101: A Win is A Win is 10 Runs (Or Thereabouts)

Sabremetrics 101: A Win is A Win is 10 Runs (Or Thereabouts). But how did we get there?

Sabermetrics 101: Expected Wins and Losses

Sabermetrics 101: Expected Wins and Losses. Pythagorean Theory Explained.

Sabermetrics 101: Environment

Sabremetrics 101: Environment. Why do we need park and league factors?

Sabermetrics 101: Correlation

Sabremetrics 101: Correlation. What does it mean, and how do we use it?

Sabermetrics 101: Value and Wins

Sabermetrics 101: Value and Wins