Methodology & Data Sources

What is NatsStats?

NatsStats is an independent fan-built statistics site for the Washington Nationals. We focus on clear, fast access to rosters, schedules, team performance, and custom "NatsStats" metrics you won't find on the official scoreboard.

Data Refresh Schedule

• Traditional stats (rosters, hitting, pitching, standings, schedule): automatically synced every 30 minutes during the MLB season.
• Advanced & Statcast-style metrics: recomputed every 6 hours.
• Game-day pages may lag the live broadcast by a couple of minutes.

Data Sources

• MLB Stats API (publicly available endpoints)
• Baseball Savant / Statcast-style derivations
• FanGraphs-style sabermetric calculations

Custom NatsStats Metrics

Natitude Pulse (0–100)

Composite team vibe score combining winning percentage (40%), normalized run differential (30%), team OPS (15%), and bullpen ERA (15%).

Bullpen Stress Index

Estimated relief innings logged over the last 3 days. Higher = more taxed bullpen heading into the next series.

Lineup Balance Score (0–100)

Inverted standard deviation of OPS across regular hitters. Higher = production is spread more evenly across the lineup.

Luck Gap

wOBA minus expected wOBA. Positive = overperforming quality of contact (regression candidate). Negative = unlucky / breakout candidate.

Barrel %

Share of batted balls hit at the ideal exit-velocity / launch-angle combination.

Hard-Hit %

Share of batted balls hit at 95+ mph exit velocity.

Hot/Cold Score

Recent form vs season baseline. Positive = hot streak; negative = cold spell.

Pitch Arsenal Score (0–100)

Composite pitcher quality derived from K/9 and WHIP, normalized league-wide.

Methodology Notes

Standard counting stats are pulled directly from box scores. Rate stats follow MLB definitions. Where Statcast tracking isn't publicly exposed per-player, NatsStats uses well-defined proxies derived from season-level outcomes. Sample sizes under 50 PA / 20 IP should be interpreted with caution.

Frequently Asked Questions

What is Nats Stats?

Nats Stats is an independent, fan-built statistics site for the Washington Nationals. It provides rosters, schedules, team performance dashboards, and custom metrics like Natitude Pulse that you won't find on the official MLB scoreboard.

How often is Nationals data updated on Nats Stats?

Traditional stats (roster, hitting, pitching, standings, schedule) sync every 30 minutes during the MLB season. Advanced and Statcast-style metrics are recomputed every 6 hours.

What is Natitude Pulse?

Natitude Pulse is a 0–100 composite team vibe score combining winning percentage (40%), normalized run differential (30%), team OPS (15%), and bullpen ERA (15%).

Is Nats Stats affiliated with MLB or the Washington Nationals?

No. Nats Stats is a project by Maybee Creations and is not affiliated with, endorsed by, or connected to Major League Baseball, MLB Advanced Media, or the Washington Nationals Baseball Club.

How do I access advanced Nationals analytics?

Visit the Advanced page for a preview of Pro metrics. Unlock Nats Stats Pro for $19.99 lifetime (Founding Fans) or subscribe monthly — Natitude Pulse, GridPower Index, Thunderchase Index, Barrel Boss Board, Luck Gap, and more.