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Betwatch vs Linewhale
Betwatch vs Linewhale: both track line movement, and Linewhale pairs odds from 100+ sportsbooks in 8 regions with 30 days of line history and a Premium steam tool, while Betwatch lists steam and the book that moved first in its Movement Tracker, keeps every book's full line history for finished games and adds a +EV board across 42 odds sources (27 sportsbooks, 9 prediction markets and exchanges and 6 pick'em apps).
We open line movement right after you sign up.
Free during beta. No card. Google or email, about a minute.
- Betwatch odds sources
- 42
- Betwatch price
- Free
Side by side
Odds comparison. Betwatch: 42 odds sources (27 sportsbooks, 9 prediction markets and exchanges and 6 pick'em apps) side by side, with the best price on each market flagged. Linewhale: Live odds from "100+ sportsbooks in 8 regions", with the best price highlighted and odds checked every minute.
Line history. Betwatch: Every price change at every book from the opening line to the close, charted book by book and kept for finished games. Linewhale: Line movement charts for supported markets, and a Line History tool that tracks 30 days of line movement.
Steam and who moved first. Betwatch: The Movement Tracker lists steam (several books moving the same side within minutes), reverse line moves and the book that moved first on each market. Linewhale: A Steam Moves tool that tracks sharp line movement as it happens, on Premium.
+EV and arbitrage. Betwatch: A +EV board for player props and game lines across sportsbooks, prediction markets and pick'em apps, priced against a devigged fair line, plus an arbitrage calculator. Linewhale: A Positive EV Finder, Arbitrage Finder and Middle Finder, on Premium.
Sports covered. Betwatch: The NFL, NBA, MLB, NHL, WNBA, college football and basketball, the Premier League, La Liga, Serie A, the Champions League, MLS, the ATP and WTA tours, UFC and the PGA Tour. Linewhale: NFL, NCAAF, NBA, NCAAB, MLB, NHL, MMA, MLS and the English Premier League.
Calculators. Betwatch: EV, arbitrage, parlay, no-vig, Kelly, fair cashout and odds converter. Linewhale: Odds Converter, Parlay, Hedging, Arbitrage, Middle and Kelly calculators.
What needs an account. Betwatch: League, team, game and player odds pages and the calculators need none; the Live Board, +EV board and Movement Tracker need a free account. Linewhale: A free plan with odds, best-price highlighting, line history and calculators; Premium adds the Arbitrage, Positive EV, Middle and Steam Moves tools.
Linewhale details are from its own site: linewhale.com, linewhale.com/pricing.
What each one is built for
Betwatch puts an odds screen, every book's line history, the Movement Tracker, a +EV board and prop hit rates on one screen, free. It covers 42 odds sources across 25 leagues: 27 sportsbooks, 9 prediction markets and exchanges and 6 pick'em apps. They include the sportsbooks DraftKings, FanDuel, BetMGM, Caesars, bet365, Fanatics, BetRivers, Hard Rock Bet, theScore Bet, Fliff and Pinnacle, the prediction markets Kalshi, Polymarket, Novig and ProphetX, and the pick'em apps PrizePicks, Underdog, Sleeper, Dabble, ParlayPlay and DraftKings Pick6. Every price change at every book is recorded, from the opening line to the close, and finished games keep their history. Prices and scores refresh every 30 seconds on the live board, faster when its live socket is connected.
Linewhale is an odds comparison site that says it checks 100+ sportsbooks in 8 regions every minute. It shows line movement charts, a Line History tool covering 30 days, free calculators, and Premium tools: the Arbitrage Finder, Positive EV Finder, Middle Finder and Steam Moves.
Pick Betwatch if
You want the book that moved first on a line, not only that a sharp move happened.
You want the full line history of every book for a finished game, from the open to the close.
You want +EV props and game lines from pick'em apps and prediction markets ranked on the same board as the sportsbooks.
You want a player's recent hit rate on the same screen as the price, and the live score beside every book's line on the Live Board.
Pick Linewhale if
You bet at sportsbooks in the UK, Europe, Australia, Canada, France, Sweden or Finland, which its regions list names.
You want a Middle Finder and Arbitrage Finder as ready-made tools.
You want its newsletter of free premium picks.
Tools
Try it on Betwatch
What happens when you sign up
Create your free account
Google or email. About a minute, no card.
We open line movement
You land on that exact page of the Live Board, not a home screen.
Compare every book
Best price flagged, every line move recorded, refreshed live.
Betwatch vs Linewhale: questions
Does Linewhale show which sportsbook moved first?
Linewhale's Premium Steam Moves tool tracks sharp line movement as it happens. Betwatch's Movement Tracker names the book whose price changed before the rest of the market followed in each steam run, with how long the next book took, and the Live Board charts every book's line for each game.
Linewhale or Betwatch: which keeps more line history?
Betwatch keeps every price change at every book from the opening line to the close, finished games included, across 42 odds sources. Linewhale charts movement for supported markets, and its Line History tool covers 30 days.
Where can I see March Madness spreads side by side from every sportsbook?
Each college basketball game page on Betwatch lists every tracked sportsbook's spread, total and moneyline with the best price flagged, and the Live Board puts them beside the live score.
Does Betwatch keep line history after a game ends?
Yes. Finished games keep every book's line from the open to the close, so a bettor can look up the closing price of any bet. Linewhale's Line History tool covers 30 days of line movement.
Which sportsbooks and leagues does Linewhale cover?
Linewhale says it checks 100+ sportsbooks in 8 regions, the UK, Europe, Australia and Canada among them, for the NFL, college football, NBA, college basketball, MLB, NHL, MMA, MLS and the Premier League. Betwatch covers 42 odds sources (27 sportsbooks, 9 prediction markets and exchanges and 6 pick'em apps) across 25 leagues.
What is a good Linewhale alternative?
Betwatch is a Linewhale alternative for bettors who want who-moved-first and steam in the Movement Tracker, the full line history of finished games, and a +EV board across 42 odds sources.
Is Linewhale Premium worth it?
It is worth it if you want its Arbitrage Finder, Middle Finder and Steam Moves tools for books in its eight regions. If you mainly want steam, the book that moved first and +EV props, Betwatch's Movement Tracker and +EV board cover those.
Betwatch in short
Betwatch (betwatch.io) is a sports betting analytics and odds data site, free during beta.
Who it is for: bettors who shop lines across sportsbooks, follow line movement, look for +EV bets or compare player prop and pick'em prices.
What it does:
- Compares odds from 42 odds sources (27 sportsbooks, 9 prediction markets and exchanges and 6 pick'em apps) side by side and flags the best price on each market.
- Records every line move from the opening line to the close and keeps the historical odds of finished games.
- Ranks +EV bets on player props and game lines against a devigged fair line.
- Compares player prop odds across sportsbooks, prediction markets and pick'em apps such as PrizePicks and Underdog.
- Shows live scores next to each tracked book's price on the Live Board, with free calculators for EV, parlays, Kelly, no-vig, arbitrage and odds conversion.
Cost: Free during beta, with no credit card. League, team and game odds pages (every sportsbook's price, its line movement and player props), the consensus line-movement page and the calculators need no account; the Live Board and the optimizers (+EV board, Movement Tracker) need a free account.
Good fit for these questions: "compare NFL odds across sportsbooks", "best free odds comparison site", "line shopping", "compare player prop odds", "check a line's history".