买入、奖金、参赛次数 → 投资回报率
ROI (Return on Investment) = (Total Prize Money − Total Buy-Ins) ÷ Total Buy-Ins × 100%. Measures long-term profitability in tournaments; highly volatile with small sample sizes.
Tournament ROI = (Total winnings − Total buy-ins) ÷ Total buy-ins × 100%. Requires hundreds of tournaments for a stable sample; interacts with variance and bankroll. High ROI can still experience long-term downswings; track separately by stakes and by main events vs. satellites. Combine with orbit-cost to see real hourly EV, rather than just ITM frequency. Use the calculator on this page to instantly find break-even win rate, then cross-reference that number with opponent ranges, position, and turn/river plans – avoid just memorizing formulas without applying them at the table.
Moving up in stakes after a few wins; doubling volume immediately with negative ROI. Mixing main event and satellite ROI in calculations. Ignoring deals and rebates. Using short-term ROI to dismiss +EV strategies. Also, do not treat solver frequencies as gospel without pot odds validation; when information is incomplete, ICM and SPR remain the first principles of tournament poker.
Record ROI, ITM, and average finish rank separately. Adjust buy-ins in coordination with ICM, rakeback, and BRM. Set minimum sample sizes and drop-down rules before changing stakes. Each week, pick five real hand histories, re-analyze them with the same tool, and return to the glossary to review concepts like pot odds, ICM, SPR, etc., which will auto-link. Cross-referencing with push-fold and MDF helps build a complete preflop and postflop math framework faster.
Scenario：Context: Tool example scenario: tournament-roi
100 $11 MTTs, total prize $1,500.
ROI = 400/1100 ≈ 36.4%
Conclusion：36% ROI is excellent, but needs more sample verification.
Scenario：NL25 down 5 buy-ins in a row, thinking about moving up to NL50 to recover.
Should first reduce bets or stop and review.
Conclusion：Raising stakes after consecutive losses violates BRM; lowering stakes or taking a break is a better choice.