Poker ROI: How to Calculate It, What It Tells You, and What It Does Not

The Formula and What It Actually Measures

ROI is calculated as:

ROI % = ((Total Winnings – Total Buy-ins) / Total Buy-ins) x 100

If you invest $10,000 in buy-ins over 200 tournaments and your total winnings are $11,500, your ROI is +15%. If your winnings are $9,200, your ROI is -8%.

What ROI measures is your average profit per dollar invested across all tournaments in the sample. A 10% ROI means that for every $100 you put into buy-ins, you return $110 on average. It does not tell you how much money you made in absolute terms, how long it took, or how sustainable that return is – which is why it should always be read alongside buy-in level, sample size, and hourly rate.

ROI Is Useless Without Sample Size

This is the most important caveat about poker ROI and the one most players ignore. MTT variance is extreme. A player with a true long-run ROI of 0% can show +40% over 100 tournaments. A player with a genuine +15% edge can show -10% over the same period. Neither result means anything on its own.

The general guidance in the MTT coaching community is that 500 tournaments is the minimum for ROI to start becoming statistically meaningful at a given buy-in level, and 1,000+ is where you can start drawing real conclusions. Below 200 tournaments, the number is almost entirely noise – it reflects variance far more than skill.

ROI vs. Hourly Rate: Which One to Use

ROI tells you how efficiently you are converting buy-in investment into profit. A 15% ROI is good regardless of whether you are playing $11 or $109 buy-ins – the percentage tells you about relative performance at that stake level.

Hourly rate tells you how much you are actually earning per hour of play. A 40% ROI in 90-minute hyper-turbos may generate less actual income per hour than a 12% ROI in 8-hour deep stack events, depending on buy-in level and how many tournaments you can play simultaneously. When choosing between formats or scheduling sessions, $/Hour is the more actionable metric. ROI is better for evaluating performance within a format.

What a Good ROI Looks Like in Practice

• 0-5% ROI: Marginal – technically profitable but vulnerable to rake increases and soft field changes. Requires high volume to generate meaningful income.
• 5-15% ROI: Solid – consistent with a genuine skill edge at micro to mid-stakes online MTTs. Sustainable with proper bankroll management.
• 15-30% ROI: Strong – typically seen at lower buy-in levels where field quality is weakest relative to a skilled player’s edge.
• 30%+ ROI: Exceptional or small sample. Very high ROIs over large samples are rare at buy-ins above $50. At micro stakes with recreational fields they are more achievable.

ROI without buy-in level and volume is an incomplete picture. A player grinding $5 turbos with a 35% ROI may be earning $2/hour. A player grinding $215 events with a 10% ROI may be earning $40/hour.

Common ROI Mistakes

• Comparing ROI across different buy-in levels. A 20% ROI at $11 buy-ins and a 20% ROI at $215 are very different achievements. Always specify the buy-in level when discussing ROI.
• Drawing conclusions from samples under 300 tournaments. Short-run ROI is dominated by variance. One or two deep runs can inflate it dramatically. Wait for a meaningful sample before adjusting your game or your stakes.
• Using ROI to compare yourself across formats. Your ROI in turbos and your ROI in deep stacks are not directly comparable. Use hourly rate for cross-format comparisons.
• Ignoring rake in your ROI calculation. ROI is calculated on total buy-ins including rake. Compare effective ROI after rake when evaluating networks.