Built by quants, for bettors
Zaiov applies institutional-grade quantitative methods to sports prediction markets — surfacing edge on Kalshi, DraftKings, and FanDuel where the model meaningfully disagrees with the market.
Mission
Stop relying on subjective opinions and instead, understand the true probabilities of sporting outcomes. Zaiov leverages a sophisticated machine learning system combining XGBoost and Bradley-Terry models, rigorously calibrated with isotonic regression, to identify pricing inefficiencies within Kalshi prediction markets. Our backtesting demonstrates a consistent 83% win rate on qualifying picks at the Phase F gate, a level of performance demonstrably superior to traditional “gut-feel” tipsters. This data-driven approach, built on robust statistical modeling, creates a durable edge by systematically extracting predictive signals from the market itself, rather than relying on human bias.
How it works
ML Ensemble Models
XGBoost + LightGBM + Bradley-Terry with isotonic calibration, retrained weekly via Optuna hyperparameter search.
Quant Scoring
Phase F gate system: convergence, confidence, and market agreement scores. Only picks with QS ≥ 65 earn Quant Select status.
Verified Track Record
Every prediction is timestamped before game time and resolved against official results. Nothing is cherry-picked.
Edge Detection
Model probability vs Kalshi orderbook mid-price. Positive edge with tight spread and strong liquidity = actionable signal.
The Team
Samyam Kafle
CEO & CTO · Co-Founder · ML & Quantitative Systems
Leads the quantitative modeling pipeline — Bradley-Terry ensembles, XGBoost/LightGBM training, isotonic calibration, and the Phase F scoring system. Architected the full prediction infrastructure from data ingestion to Kalshi edge detection.
samyam1kafle@gmail.comChaitanya Vazrala
Co-Founder · Engineering & Infrastructure
Drives backend engineering, server infrastructure, and deployment systems. Oversees the Docker orchestration, CI/CD pipeline, and the data collection architecture that keeps the prediction engine running 24/7.
v.chaitureddy@gmail.com4
Sports covered
NBA · MLB · NCAAM · NCAAWB
1,086+
Picks tracked
Verified & timestamped
83.1%
Backtest QS WR
Phase F qualifying picks
2024–
In operation
Continuous live tracking