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I Added Park Factor Correction to My NPB Bayesian Prediction Model — Backtest Validation & 2026 Forecast

I Added Park Factor Correction to My NPB Bayesian Prediction Model — Backtest Validation & 2026 Forecast

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4 min read

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I Calculated NPB Park Factors for 10 Years — Stadium Renovations Revealed

I Calculated NPB Park Factors for 10 Years — Stadium Renovations Revealed

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6 min read
Did Bayesian Projection (Stan/Ridge) Predict the 2021 NPB Last-to-First Upsets?

Did Bayesian Projection (Stan/Ridge) Predict the 2021 NPB Last-to-First Upsets?

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4 min read
Park Factors, OAA, and Stuff+ in One Line of Python (savant-extras v0.3.2–v0.4.1)

Park Factors, OAA, and Stuff+ in One Line of Python (savant-extras v0.3.2–v0.4.1)

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3 min read
Beyond Marcel: Adding Bayesian Regression to NPB Baseball Predictions — A 15-Step Journey

Beyond Marcel: Adding Bayesian Regression to NPB Baseball Predictions — A 15-Step Journey

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4 min read
Does Exit Velocity Come from the Front Foot? Exploring Driveline Motion Capture Data

Does Exit Velocity Come from the Front Foot? Exploring Driveline Motion Capture Data

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5 min read
Last Place to Champions: What Marcel Projection Reveals About 2021 NPB Yakult and Orix

Last Place to Champions: What Marcel Projection Reveals About 2021 NPB Yakult and Orix

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6 min read
Why Two Pitchers with the Same Arm Speed Differ by 10 mph — A Motion Capture Analysis

Why Two Pitchers with the Same Arm Speed Differ by 10 mph — A Motion Capture Analysis

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4 min read
Annual Auto-Retraining for NPB Baseball Predictions with GitHub Actions

Annual Auto-Retraining for NPB Baseball Predictions with GitHub Actions

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4 min read
HTTP 200 but Your Streamlit App Is Still Sleeping — Why GET Requests Don't Work and How Playwright Fixes It

HTTP 200 but Your Streamlit App Is Still Sleeping — Why GET Requests Don't Work and How Playwright Fixes It

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4 min read
3D Skeleton Detection from Baseball Motion Capture Data with Driveline C3D

3D Skeleton Detection from Baseball Motion Capture Data with Driveline C3D

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3 min read
Why Marcel Beat LightGBM: Building an NPB Player Performance Prediction System

Why Marcel Beat LightGBM: Building an NPB Player Performance Prediction System

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8 min read
I Built a Python Package for Every Baseball Savant Leaderboard

I Built a Python Package for Every Baseball Savant Leaderboard

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2 min read
MLB Bat Tracking Dataset (2024-2025)

MLB Bat Tracking Dataset (2024-2025)

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3 min read
Draw Baseball Fields and Spray Charts in matplotlib: baseball-field-viz

Draw Baseball Fields and Spray Charts in matplotlib: baseball-field-viz

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4 min read
Track SIGNATE Competition Scores with W&B: signate-wandb-sync

Track SIGNATE Competition Scores with W&B: signate-wandb-sync

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2 min read
Automate SIGNATE Competition Submissions with a CLI Tool: signate-deploy

Automate SIGNATE Competition Submissions with a CLI Tool: signate-deploy

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2 min read
Track Kaggle Experiments with W&B — Even Without Internet Access

Track Kaggle Experiments with W&B — Even Without Internet Access

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3 min read
Deploy Kaggle Notebooks with git push — I Built a CLI Tool for It

Deploy Kaggle Notebooks with git push — I Built a CLI Tool for It

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3 min read
I Built a WBC 2026 Scouting Dashboard with MLB Statcast Data

I Built a WBC 2026 Scouting Dashboard with MLB Statcast Data

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4 min read
Git-Driven Kaggle: Manage Notebooks in GitHub, Auto-Deploy via Actions

Git-Driven Kaggle: Manage Notebooks in GitHub, Auto-Deploy via Actions

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3 min read
OpenClaw Intro: Building a Twitter Bot with Raspberry Pi and Gemini

OpenClaw Intro: Building a Twitter Bot with Raspberry Pi and Gemini

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4 min read
Kaggle Code Competitions : GitHub Actions + Kaggle API Cloud Workflow

Kaggle Code Competitions : GitHub Actions + Kaggle API Cloud Workflow

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3 min read
I Tried Streamlit for the First Time and Built an MLB Bat Tracking Dashboard

I Tried Streamlit for the First Time and Built an MLB Bat Tracking Dashboard

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4 min read
Yusei Kikuchi's Pitching Evolution: A Statcast Analysis (2019-2025)

Yusei Kikuchi's Pitching Evolution: A Statcast Analysis (2019-2025)

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8 min read
Kodai Senga's Ghost Fork Analyzed with Statcast Data (2023-2025)

Kodai Senga's Ghost Fork Analyzed with Statcast Data (2023-2025)

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8 min read
I built savant-extras: Date Range Support for Baseball Savant Data

I built savant-extras: Date Range Support for Baseball Savant Data

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3 min read
Shota Imanaga's Sophomore Year: What Statcast Data Reveals (2024-2025)

Shota Imanaga's Sophomore Year: What Statcast Data Reveals (2024-2025)

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5 min read
Yu Darvish's Pitching Evolution (2021-2025): A Statcast Data Analysis

Yu Darvish's Pitching Evolution (2021-2025): A Statcast Data Analysis

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5 min read
How I Moved Flutter Android Builds to GitHub Actions (Low-Spec PC)

How I Moved Flutter Android Builds to GitHub Actions (Low-Spec PC)

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2 min read
What a Non-Engineer Built with Claude Code in One Month

What a Non-Engineer Built with Claude Code in One Month

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3 min read
MLB Statcast + Bat Tracking Dataset (2024-2025)

MLB Statcast + Bat Tracking Dataset (2024-2025)

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3 min read
MLB Pitcher Arsenal Evolution Dataset (2020-2025)

MLB Pitcher Arsenal Evolution Dataset (2020-2025)

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2 min read
Japanese MLB Players Statcast Dataset (2015-2025)

Japanese MLB Players Statcast Dataset (2015-2025)

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3 min read
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