Strategy guides, model methodology, Betfair signal analysis, honest betting-tool reviews and bilingual slam previews from the fault.bet research team. Built on 1.6 million ATP and WTA matches.
120 settled picks, 44 winners, +20.7u at flat stakes — the full month audited, including the five-day losing run and the −5u day. Why the entire profit came from longshots.
Read the full auditSinner defends cold after skipping every warm-up, Alcaraz is out, and Zverev arrives a slam champion at last. The model's read on the draw, the serve-and-grass edges, and where the value sits. Updated 10 June.
Read the ATP previewSwiatek defends under pressure, Mirra Andreeva arrives as French Open champion and Race leader, and Rybakina is the model's quiet favourite. The draw read and the value picks for the most open Slam of the year. Updated 10 June.
Read the WTA previewThe full grass calendar from Stuttgart and 's-Hertogenbosch through Queen's, Halle and Berlin to Wimbledon. Why the surface breaks the form book, the model's grass win-rate leaders — Djokovic 91%, Alcaraz 88%, Sinner 76% — and the value angles that only exist for three weeks a year.
Read the complete guideAll 16 meetings, surface by surface, every Grand Slam and final. Alcaraz leads 9–7 — but Sinner has won 3 of the last 4 and leads finals 4–3. Plus the deciding-set pattern nobody prices right, and the serve, return and clutch data on grass.
Read the full breakdownHonest, hands-on reviews of the betting & trading tools we actually rate — tested properly, with real pros and cons and no affiliate fluff.
The strongest value & sure betting tool for global/European bettors — no-card trial, profit guarantee, and what its 30%/month claim really means.
Read the full review →The most powerful +EV, arbitrage and middles toolkit for US/Canada bettors — data, pricing, realistic profit, and the account-limiting catch.
Read the full review →The friendliest, best-value matched betting tool — the matcher suite, 0% Smarkets deal, pricing, realistic profit, and how it compares to Outplayed.
Read the full review →The UK's biggest matched betting platform, tested in full — tools, training, pricing, realistic profit and the gubbing catch nobody warns you about.
Read the full review →The data, the features and the modelling behind fault.bet — surface-adjusted Elo, choke index, projected hold, and how the signals are priced against Betfair.
Read how it works GUIDE · STAKINGHow to stake tennis value bets sensibly — Kelly and fractional Kelly, bankroll management, and getting the most from each daily signal without blowing up on variance.
Read the staking guide ANALYSIS · MODELWhere the in-play market gets pressure wrong, why the Markov assumption breaks under tension, and how the choke index turns that into an edge.
Read the analysisBrandon Nakashima holds at 78%, Jack Draper breaks at 23%. Full serve, return, and pressure breakdown for tomorrow's Lexus Eastbourne Open match on grass.
Read preview Daily PreviewAlexandra Eala holds at 65%, Elise Mertens breaks at 40%. Full serve, return, and pressure breakdown for tomorrow's Bad Homburg Open powered by Solarwatt match on hard.
Read preview Daily PreviewAryna Sabalenka holds at 74%, Nikola Bartunkova breaks at 35%. Full serve, return, and pressure breakdown for today's VANDA Pharmaceuticals Berlin Tennis Open match on hard.
Read preview Daily PreviewAryna Sabalenka holds at 74%, Nikola Bartunkova breaks at 35%. Full serve, return, and pressure breakdown for tomorrow's VANDA Pharmaceuticals Berlin Tennis Open match on hard.
Read preview Daily PreviewAlexander Zverev holds at 87%, Yannick Hanfmann breaks at 14%. Full serve, return, and pressure breakdown for tomorrow's Terra Wortmann Open match on hard.
Read preview Daily PreviewEkaterina Alexandrova holds at 63%, Aryna Sabalenka breaks at 42%. Full serve, return, and pressure breakdown for tomorrow's VANDA Pharmaceuticals Berlin Tennis Open match on hard.
Read preview Daily PreviewAnna Kalinskaya holds at 61%, Elina Svitolina breaks at 44%. Full serve, return, and pressure breakdown for tomorrow's VANDA Pharmaceuticals Berlin Tennis Open match on hard.
Read preview Daily PreviewJoao Fonseca holds at 84%, Yannick Hanfmann breaks at 14%. Full serve, return, and pressure breakdown for tomorrow's Terra Wortmann Open match on hard.
Read preview Daily PreviewHarry Wendelken holds at 79%, Adam Walton breaks at 28%. Full serve, return, and pressure breakdown for today's HSBC Championships match on hard.
Read preview Daily PreviewElena Rybakina holds at 76%, Tatjana Maria breaks at 34%. Full serve, return, and pressure breakdown for today's The HSBC Championships match on hard.
Read preview Daily PreviewIva Jovic holds at 67%, Amanda Anisimova breaks at 46%. Full serve, return, and pressure breakdown for tomorrow's The HSBC Championships match on hard.
Read preview Daily PreviewElena Rybakina holds at 76%, Tatjana Maria breaks at 34%. Full serve, return, and pressure breakdown for tomorrow's The HSBC Championships match on hard.
Read preview Daily PreviewMartin Landaluce holds at 80%, Taylor Fritz breaks at 18%. Full serve, return, and pressure breakdown for tomorrow's ATP Stuttgart 2026 match on grass.
Read preview Daily PreviewMika Stojsavljevic holds at 66%, Marta Kostyuk breaks at 50%. Full serve, return, and pressure breakdown for tomorrow's The HSBC Championships match on hard.
Read preview Daily PreviewKimberly Birrell holds at 64%, Magda Linette breaks at 33%. Full serve, return, and pressure breakdown for tomorrow's Libéma Open match on hard.
Read preview Daily PreviewAlexander Zverev holds at 87%, Flavio Cobolli breaks at 20%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewMirra Andreeva holds at 70%, Maja Chwalinska breaks at 56%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewAlexander Zverev holds at 87%, Jakub Mensik breaks at 19%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewMirra Andreeva holds at 71%, Marta Kostyuk breaks at 49%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewDiana Shnaider holds at 65%, Aryna Sabalenka breaks at 42%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewMarta Kostyuk holds at 68%, Elina Svitolina breaks at 42%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewNaomi Osaka holds at 67%, Aryna Sabalenka breaks at 40%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewBelinda Bencic holds at 69%, Elina Svitolina breaks at 41%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read preview Daily PreviewAnastasia Potapova holds at 63%, Coco Gauff breaks at 46%. Full serve, return, and pressure breakdown for tomorrow's Roland Garros match on clay.
Read previewSinner returns as defending champion at SW19. Alcaraz chasing his third title. Djokovic at the venue where he has won seven. Plus Hurkacz, Mensik and the model's read on a grass-specific field where surface form diverges from world rankings.
Read preview WIMBLEDON 2026 · WTASwiatek defending her 2025 breakthrough. Sabalenka at #1 with grass questions. Gauff under-priced on the surface. Rybakina's grass welo top of the field. Andreeva's choke index says she belongs in the conversation.
Read previewAndreeva 1.68, Kostyuk 2.34 on Betfair — but model and Polymarket both put the match closer to a coin flip. +11.6% expected return on Kostyuk @ 2.34 — full breakdown and free pick.
Read preview Model Read Match RecapMertens went off at 1.43, Pliskova drifted to 3.30. Hold and break rates were near-identical, but the choke index split (0.20 vs 0.30) was the value. Transparency note: 3.30 sat above our send filter.
Read recap Won Match RecapMarket priced this as a coin flip. Hold rates told a different story — Osaka 72.3% vs Osorio 65.6% on rolling clay form. Model had Osaka at 72.2% to win against the implied 52.4%.
Read recap Won Match RecapKasatkina the name-recognition favourite, Snigur the data favourite. Hold percentages of 80.4% vs 56.9% on clay made the price an inversion. 19.3% edge cashed in three sets.
Read recap Lost Match PreviewAn underdog clay-court call. The market had Fils a 1.30 favourite; the model said the gap was narrower. 11.2% edge at 3.35 on Etcheverry — full breakdown.
Read preview Won Match PreviewOur highest-confidence ATP call. Bublik is the higher-Elo player; Tsitsipas is the clay specialist. The surface does the work. Model gives Tsitsipas 54% vs market 40% — a 14.3% edge at 2.46.
Read previewThree markets, one model. A practical 3000-word guide to using fault.bet's tennis trading signals on Kalshi — with a live price comparison widget, an edge calculator, and the seven metrics that drive every pick.
Read the full guide PolymarketThree markets, one model, three different prices. How to use fault.bet's daily signals, premium dashboard, and API tier to find Polymarket value before it disappears. Real Python snippets, real Madrid final example.
Read guide API GuideHow to use the fault.bet API for Betfair trading, Polymarket predictions, journalism, fantasy sports, and model building. Real code examples and use cases.
Read guide WEATHER READRome bakes at 23°C and dry, Paris broods at 15°C with rain risk. The next 48 hours split cleanly. What each profile rewards on clay — plus one player at each venue whose stat profile lines up with the forecast.
Read the weather read StrategyWhy staking matters more than picks. Full breakdown of Kelly criterion, fractional Kelly, flat staking, Lucky 15s and Lucky 63s — with real examples from fault.bet signals.
Read article ModelBetfair's standard pricing assumes points are independent. Our data proves they're not. Here's what that means for lay signal generation and where the real edge comes from.
Read article APIBetfair prices lead Polymarket by 2–5 minutes. Our calibrated model identifies edges on both platforms simultaneously. How to use the fault.bet API for prediction market trading.
Read article ModelArchitecture, feature engineering, and results from building a tennis prediction system using LightGBM, Elo ratings, and 1.6 million historical matches.
Read article ResultsAll 3 fault.bet signals won on Saturday at prices of 3.90, 2.96 and 2.52. A £7 Patent returned £67. The maths on value selections and multiple bets.
Read article AnalysisFull fault.bet model analysis of the 2026 Miami Open. ATP and WTA value picks, choke index ratings for key players, and our top pre-match signals for the tournament.
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