Meet Wagerlog — Every bet, one journal. CLV and EV, no spreadsheet
Wagerlog is a single private journal for every wager you place — across Kalshi, Polymarket, DraftKings, FanDuel, BetMGM, Caesars, a horse track, an office pool.
Finance
Wagerlog
Every bet, one journal. CLV and EV, no spreadsheet.
Every feature, from the first launch.
No account, no login, no cloud. Everything runs on your device and works fully offline — nothing in this post is hidden behind a wall.
What Wagerlog does
Wagerlog is a single private journal for every wager you place — across Kalshi, Polymarket, DraftKings, FanDuel, BetMGM, Caesars, a horse track, an office pool. You enter your stake, price, and side. When the event resolves, you log the outcome. Wagerlog computes EV, CLV (closing line value), and your true ROI by sportsbook + market type + sport.
What's in v1:
— Bet entry: book/platform, market (e.g. NBA moneyline, S&P close), side, stake USD, price (American odds or cents), expected resolution. — Resolution: outcome + final settled USD. — CLV input: when you have the closing line, enter it; Wagerlog computes whether you got CLV. — Roll-up: YTD ROI by book, by sport, by market type. Win rate, average odds, Kelly stake suggestion (for educational purposes only). — No broker integration. No social. Yours.
Free.
A look inside
Tap any screenshot to open the full-resolution version.
What's inside
- Multi-book bet entry — Every wager logged the same way.
- Resolution + CLV — Settle bets + compute CLV.
- Roll-up — ROI by book / sport / market type.
Why we built it
PDF: 100K+ Polymarket accounts have lost $1K+. CNBC May 2026: most prediction-market traders lose money. The single best discipline change is keeping a written journal. Existing apps (Action Network, Bet Tracker Pro) are betting-feature heavy; Wagerlog is the calm journal.
What makes it different
Wagerlog is platform-agnostic: it logs Kalshi event contracts the same way it logs DraftKings parlays. No bookmaker integration; no real-money handling; just the journal.
Who it's for
Freelancers, contractors, and small-business owners who want their numbers right at tax time without renting a SaaS to do it.
In one line: Every bet, one journal. CLV and EV, no spreadsheet.
Try it
See the Wagerlog app page for the full feature list, the info table, and support links.
Use Wagerlog, found a bug, or have a feature request? Comments are open below — anonymous is fine.
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