His laptop screen was a maze of worksheets.

By building this yourself in Excel, you understand your own betting habits better than any app could teach you. This is the "best" way to approach Iddaa analysis.

: Potential payout, net profit/loss, and Return on Investment (ROI). Analysis & Statistical Tools :

Use Drop-down Menus (Data -> Data Validation) for categories like "League" or "Result". This ensures your data stays clean and makes future analysis much easier.

Create a third sheet called "Database." Every time you finish a match analysis, copy the row from Input to Database. Over a season, you will have thousands of data points to analyze trends (e.g., "Does Team X score more in the second half?").

: Build a section to calculate implied probabilities for different outcomes. This helps you identify if a bookmaker's odds offer "value" (when the implied probability is lower than the actual likelihood).

| A (Date) | B (League) | C (Bet Type) | D (Odds) | E (Stake) | F (Result) | G (Net Profit) | H (Bankroll) | |----------|------------|--------------|----------|-----------|------------|----------------|---------------| | 10-Mar | Süper Lig | MS1 | 2.10 | 100 | Kazandı | =E2*D2-E2 | =previous + G2 | | 11-Mar | Premier L. | ÜST 2.5 | 1.85 | 100 | Kaybetti | =-E3 | =H2+G3 |