Daily MLB analysis by LyDia
A moneyline model read for every game — the math, the market, and the reasoning, shown.
Every morning LyDia scores the full slate, checks the price against the market, and only labels official picks when both model probability and Lab Rating clear the stricter gates. Results stay visible, wins and losses included.
Today's status
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$30/month. Cancel anytime. Every result is graded in public.
🧪 LyDia's Lab
Pitcher matchups, bullpen fatigue, and LyDia vs Market — research tools built to help members understand the full daily card before reading the picks.
📊 Team Stats
Live MLB standings with run differentials and Pythagorean expected win percentage — a quick read on which teams are over- or under-performing their true talent.
📖 Strategy Articles
Guides on the fundamentals of finding value: understanding the vig, why closing line movement matters, and how MLB's unique structure creates betting opportunities.
How LyDia works
How to Bet on MLB: The Complete Guide
Start here — every market explained, the pitcher economy, bankroll rules, and the five traps that empty new accounts.
Model
Team strength, recent form, home field, and starting-pitcher context are scored every morning against the day's real slate.
Market
Every official pick is checked against the market's no-vig probability. No edge over the price means no pick — discipline is the product, not volume.
Accountability
Every preview is archived and every pick is graded the next day on the public Results page. Wins and losses alike — nothing is deleted.
The methodology, in plain English
Every morning, before any picks are published, the model pulls the day's real MLB schedule, current standings, and probable starters, then works through the same process for every game on the slate. First, each team gets a strength number blending its Pythagorean win expectation — an estimate of true win percentage derived from runs scored and allowed — with its last-10-game form, weighted so a hot or cold recent stretch nudges the number without overwhelming the full-season signal.
Those two team strengths are combined head-to-head using a log5 calculation, with a modest home-field adjustment. From there, the starting pitching matchup shifts the number. Each starter's season ERA is compared to league average, with a floor for low-innings starters and clamps for extreme ERA values so one outlier start cannot distort the projection.
The current official model is moneyline-only. Totals and run lines may still appear in older historical records from earlier model versions, but they are not part of the current official pick engine. Current official picks require a market edge, a model win probability of at least 72%, a Lab Rating of at least 8.0/10, pitcher support, and no major bullpen caution.
Lab Rating is not win probability. Win probability estimates how often LyDia thinks a team wins. Lab Rating grades setup quality: model edge versus market, pitcher support, bullpen condition, market availability, and risk checks. A high Lab Rating with a low win probability becomes a value watch, not an official pick.
Guides
The concepts behind the model and betting markets, explained in full.
What Is Edge in MLB Betting?
What edge actually means, where it comes from, and how to calculate it yourself.
No-Vig Odds Calculator Guide
How to strip the sportsbook's margin out of any price to see the market's fair probability.
How to Find Value in MLB Moneylines
A repeatable, five-step process for spotting value instead of chasing hunches.
Closing Line Value in MLB Betting
Why closing price movement can help evaluate whether a process is identifying useful numbers.
MLB Run Line vs. Moneyline
A legacy guide explaining market structure and why moneyline and run-line logic should not be mixed casually.
MLB Bullpen Fatigue and Betting
How to spot an overworked bullpen before a game, and why it is hard to model automatically.
MLB Park Factors Betting Guide
A full table of all 30 ballparks' run environments, from Coors Field to Oracle Park.
MLB Pitching Metrics for Betting
ERA vs. FIP vs. xFIP vs. SIERA — what each measures and which actually predicts.
Frequently asked questions
How does LyDia's MLB model work?
LyDia blends each team's Pythagorean win expectation with last-10 form, combines the two teams head-to-head with log5 and home-field adjustment, then shifts the number based on the starting pitching matchup. It then compares that moneyline probability to the market.
Is LyDia's model always right?
No. The model publishes a probability and compares it to the market's fair price. When the probability, price edge, or Lab Rating is not strong enough, it explicitly passes or labels the game as research only. Every graded pick, win or lose, stays visible on the public Results page.
Is LyDia free to use?
The public site includes daily previews, archived recaps, and transparent results. Membership adds direct delivery, market movement notes, and the daily research workflow built around LyDia's Lab.
What markets does LyDia cover?
The current official LyDia model is moneyline-only. Older historical records may include legacy totals and run-line outputs from earlier versions.