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Best closing line value (CLV) trackers in 2026: how to track CLV on your bets
Closing line value (CLV) is how much better your price was than the closing price, the last price before the game starts. To track it, Betstamp's free bet tracker records CLV on every main-market bet you log, Pikkit Pro works it out on bets synced from your sportsbook accounts, and Betwatch keeps the closing line at every book for every finished game across 42 odds sources, free, so you can check any bet against the close yourself.
We open live odds right after you sign up.
Free during beta. No card. Google or email, about a minute.
By the Betwatch team. Published Nov 10, 2026, updated Nov 10, 2026.
The list
At a glance
How to work out CLV on one bet
Turn your price and the closing price into win chance, then subtract. A bet at +150 is a 40.0% chance. If the line closes at +130, that is 43.5%. You bought a 43.5% shot at the price of a 40.0% one, so your CLV is +3.5 points.
Spreads and totals can be read in points too. Over 224.5 that closes at 226.5 gave you two points more room than the market ended up giving.
| Bet | You bet | Close | CLV |
|---|---|---|---|
| Celtics moneyline | +150 | +130 | +3.5 pts |
| Over 224.5 (-110) | 224.5 | 226.5 | +2.0 |
| Knicks -3.5 (-110) | -3.5 | -2.5 | -1.0 |
One bet proves nothing. The signal is the average over a hundred bets or more of the same kind. A positive average means you keep paying less than the market ends up asking.
Which closing line to compare against
Pick one and keep it. The close at the book you bet shows whether you beat that book. The best close across books is a harder test. The sharpest test is a sharp book's close, such as Pinnacle's, with the vig taken out, because that is the market's most informed price.
Trackers differ here. Betstamp compares your bet with the close at the book you bet and with the best price at the close. Pikkit lets you pick the best available price, no-vig fair odds, books you choose or the book you bet.
How we picked
Shows the closing line it compares your bet to, and which book it comes from.
Covers the markets you bet: sides, totals and player props.
Says whether bets sync from your sportsbook or you enter them.
Says what is free and what is paid.
We make Betwatch, so we list it first on criteria we state above. The other entries are described from their own sites.
1. Betwatch
Best for: Looking up the closing line at every book for any finished game.
Betwatch records every price change at 42 odds sources (27 sportsbooks, 9 prediction markets and exchanges and 6 pick'em apps) from the opening line to the close, and finished games keep their historical odds, so the closing line at each book, Pinnacle included, is there to check any bet against. Game pages list each book's price at the open, 24 hours ago and now, the Live Board charts every move up to the close, and the free odds converter and no-vig calculator turn both prices into win chance.
Cost: Free during beta, with no credit card. Free: Game pages and the line movement page need no account. The Live Board needs a free account.
www.betstamp.com
2. Betstamp
Best for: A free bet tracker that records CLV on each bet.
Betstamp says it tracks CLV for every main-market bet you track in its app. You add a bet by picking it and entering the amount, and bets placed from its PRO odds screen go to the tracker on their own. It compares each bet with the close at the book you bet and with the best price at the close.
Cost: Free bet tracker. Betstamp PRO is a paid odds screen. Free: The bet tracker, with CLV on main-market bets.
pikkit.com
3. Pikkit
Best for: CLV worked out on bets synced from your sportsbook accounts.
Pikkit syncs bets from your sportsbook accounts through BookSync, so there is nothing to log by hand. Pikkit Pro adds CLV on straight bets, props and parlays where it has odds, against the closing line you choose: best available, no-vig fair odds, books you pick or the book you bet. Same-game parlays get no CLV.
Cost: The app and basic tracking are free. CLV is Pro: $29.99 a month or $199.99 a year, 7-day trial. Free: Bet tracking synced from your books.
www.actionnetwork.com
4. Action Network
Best for: A free synced bet tracker, if you check CLV yourself.
Action Network's app has a free bet tracker that syncs bets from your sportsbook accounts with BetSync, and its paid EDGE tier adds bet tracking analytics. Its pages do not say it works out CLV, so pair it with a source of closing lines.
Cost: Free bet tracker. EDGE is a paid tier. Free: Bet tracking, with BetSync from your sportsbooks.
What happens when you sign up
Create your free account
Google or email. About a minute, no card.
We open live odds
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.
Best closing line value (CLV) trackers in 2026: how to track CLV on your bets: questions
How do I track closing line value on my bets?
Closing line value is the gap between the price you bet and the closing price, in win chance. To track it, log each bet with its price, look up the closing line for the same market after the game starts, convert both to win chance and average the difference. Betstamp and Pikkit Pro do this for you; Betwatch keeps every book's closing line to check against.
Is there a free CLV tracker?
Betstamp's free bet tracker records CLV on main-market bets you log. Pikkit tracks bets for free, but its CLV is part of Pikkit Pro. A spreadsheet plus Betwatch's closing lines and free calculators costs nothing.
Where can I find the closing line for a game?
Betwatch records every price change at 42 odds sources and keeps finished games, so each book's closing line is there to look up, including Pinnacle's.
Which closing line should I use?
Use one benchmark and keep it. A sharp book's close with the vig removed, such as Pinnacle's, is the strictest test. The close at your own book is the easiest to beat.
Does beating the closing line mean I will win?
No. A bet can beat the close and lose. CLV measures how good your prices are over many bets, not the result of one.
How many bets do I need before CLV means something?
A hundred or more in the same kind of market gives a usable average. A handful of bets is noise either way.
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".