投资回报率计算器 - 博彩ROI计算
免费博彩ROI计算器。根据投注历史计算投资回报率、净利润和每注利润。
如何使用此计算器
- 输入您的总投注金额(所有投注的总和)
- 输入总返还金额(获胜支付包括投注)
- (可选)输入下注次数以获取每注的指标
- 查看利润、ROI%和每注统计数据
公式
净利润 = 总返还 − 总投注
ROI = 净利润 / 总投注 × 100%
平均投注 = 总投注 / 投注数
每注利润 = 净利润 / 投注数
5-10%以上的持续ROI是1000+次投注的强劲体育投注者的典型;小样本中超过20%通常是方差,而不是技能。
常见问题
What is a good ROI in sports betting?
Professional sports bettors typically aim for a long-term ROI of 5-10%. Anything above 3% over a large sample (5000+ bets) is considered exceptional. Sharps often run thinner (2-3%) on bigger volumes; recreational winning bettors run at 5-15% with smaller volumes but more variance.
How is ROI different from yield?
Yield is another name for ROI in betting context. Both measure profit as a percentage of total wagered. The terms are interchangeable — yield is more common in horse racing and European betting, ROI more common in US sports betting and matched betting.
Why does sample size matter?
Short-term ROI is dominated by variance, not skill. A 20% ROI over 50 bets means almost nothing — random variance can produce that easily. To distinguish skill from luck you generally need 1000+ bets with consistent staking and odds before ROI starts to reflect your true edge.
Should I track ROI by sport, market, or bet type?
Yes — track each segment separately. Total ROI may hide that you’re profitable on NHL totals but bleeding money on NBA spreads. Granular tracking is the foundation of any improvement loop in long-term betting.