1.Why trust circadian science?
The underlying literature is consistent: crossing two or more time zones the night before a game measurably degrades reaction time, sleep quality, and on-field output. Most performance labs use that two-time-zone cutoff as a first-class input. PhaseShift treats it the same way: circadian phase is a primary input to every pick, not a tie-breaker layered on top of a generic power rating.
2.What does ATS mean?
ATS stands for "against the spread." Every NFL/NBA/CFB line is set against a point spread — picking whether a side will beat the line they were given at tip-off, not just who wins straight up. For each game the model publishes an ATS probability alongside its straight-up pick, so you can see the layer that matters for most bettors.
3.How is the model built?
Five base layers — the open line, travel miles, circadian phase, venue drag, and reverse line movement. Every layer is re-weighted on each odds and itinerary update, and the public /accuracy page ships the closed-game record (straight-up, ATS, total) for every layer that publishes one. No black box — every layer has a number behind it.
4.How does the model compare to Vegas?
The closing line at any single sportsbook is one input, not the whole market. Vegas is sharp but not unanimous — books disagree by a tenth to half a point on the same matchup. The model reads the multi-book consensus and weights disagreement; that is where most of the edge comes from, and it is the same edge a sharp bettor tries to extract manually on game day.
5.What's the difference between Free and Pro?
Free is the public, NFL-only landing-page picks — drop your email to the waitlist below and you get those as they post. Pro ($25/mo, cancel any time) is the full dashboard across every league PhaseShift covers, with every per-game breakdown and every model output visible. The Free tier is the trailer; Pro is the full stack the trailer is cut from.