How Long Can a TOTO Number Go Without Appearing?一个多多号码最长可以多久不出现？
Some numbers sit out for dozens of draws in a row. That is not a sign anything is "due" — it is what randomness looks like.
What Is a "Drought"?
A drought, as used on this site, is simply a stretch of consecutive draws in which a particular number did not appear among the 6 Winning Numbers. Every number in the 1–49 pool has its own history of droughts, long and short, scattered across the dataset.
How Long Gaps Can Get
Across the 1,215 official Singapore TOTO draws this site currently covers (draw #2995, 9 Oct 2014, through the latest draw, #4209, 17 Aug 2026), the longest gap observed for any single number was 83 consecutive draws with no appearance (for the number 13) before it appeared again. That is an unusually long stretch, but on the other end, most numbers' gaps between appearances are much shorter — on average, a number's typical (median) gap between appearances is around 4 to 5 draws.
As one example, the number 1 appeared 158 times in this dataset; its longest single gap without appearing was 30 draws, while its typical gap was 4 draws.
Why Long Gaps Are Normal in Random Draws
With 49 numbers and only 6 drawn each time, any single number has roughly a 1-in-8 chance of appearing in a given draw. Over many draws, occasional long stretches without a particular number showing up are a completely ordinary outcome of that kind of randomness — not a sign that something unusual, rare, or overdue is happening. Long gaps and short gaps both occur, purely by chance, across a large enough sample of draws.
The Gambler's Fallacy
It is tempting to think a number that has not appeared in a long time is somehow "due" to appear soon. This is a well-known reasoning error called the gambler's fallacy. Each TOTO draw is independent: the machine has no memory of past draws, and a number's recent absence does not change its odds in the next draw. A number that has gone 80 draws without appearing has exactly the same chance next time as a number that appeared in the most recent draw.
Where to Check a Number's Own History
This site's Statistics page lets you click any number from 1 to 49 to see its own appearance count over the last 10, 20 and 50 draws, its full history, and how many draws it has been since it last appeared — the same underlying data used for the figures above. See Hot and Cold Numbers: What Lottery Statistics Really Mean for more on why this kind of frequency data is descriptive, not predictive.
有些号码可能连续几十期都不出现。这并不意味着它「快要开出了」——这只是随机性本来的样子。
什么是「空窗期」？
本站所说的「空窗期」，指的就是某个号码在连续几期开奖中，都没有出现在6个开奖号码之中的这段区间。1–49号码池中的每一个号码，都有属于自己的、长短不一的空窗期历史，散布在整个数据集当中。
空窗期最长可以有多长？
基于本站目前覆盖的1,215期官方新加坡多多开奖记录（从第2995期，2014年10月9日，至最新一期第4209期，2026年8月17日），数据集中观察到的最长空窗期为连续83期未出现（号码13），随后才再次开出。这是一段相当长的空窗期，但从另一个角度看，大多数号码两次出现之间的间隔要短得多——平均而言，一个号码「典型」（中位数）的间隔期约为4至5期。
举例来说，号码1在本数据集中共出现过158次，其最长的单次空窗期为30期，而其典型间隔期为4期。
为什么长时间未出现在随机开奖中很正常？
49个号码中每期只开出6个，因此任意一个号码在某一期开奖中出现的概率大约是八分之一。在足够多的开奖期数中，某个特定号码偶尔连续多期未出现，是这种随机性下完全正常的结果——并不意味着发生了什么异常、罕见，或「该出现了」的情况。在足够大的开奖样本中，长空窗期与短空窗期都会纯粹凭运气发生。
「赌徒谬误」
人们很容易觉得，一个很久没出现的号码「快要该出现了」。这其实是一种被称为「赌徒谬误」的常见推理错误。每一期多多开奖都是相互独立的：开奖机器不会「记得」以往的开奖结果，一个号码近期未出现，并不会改变它在下一期开奖中出现的概率。一个连续80期未出现的号码，与一个刚刚在上一期出现过的号码，在下一期开奖中的机会是完全相同的。
如何查看某个号码自己的历史？
本站统计页面支持点击1至49中的任意号码，查看它在最近10期、20期、50期中的出现次数、完整历史记录，以及距离上次出现已经过去了多少期——与上文数据来源相同。关于此类出现频率数据为何只是描述性的、而非预测性的，可参阅《热门号码与冷门号码：彩票统计数据到底说明了什么》。
