How likely is it for one miner to mine a Bitcoin block?
The chances of a single sole miner finding a Bitcoin block are extremely slim. When on June 5, 2025, a solo miner succeeded and earned more than $ 330 thousand, it was an achievement against very difficult conditions. At that point, Bitcoin’s weight required finding the correct hash among more than 126 trillion possibilities. Even with a temporary increase in power to about 259 petahash per second, the probability of success was only 1 in 3,050. Given that the network is dominated by large mining pools, such individual cases are very rare, but they still happen occasionally.
Source: cointelegraph
Prize of $ 330 thousand
Bitcoin mining basically means confirming transactions and adding new blocks to the blockchain. A miner takes a set of transactions, forms a block, and then constantly changes a small number (called a nonce) until it finds a hash that satisfies the network target. Whoever finds a valid hash first gets a reward – in this case, more than $330k in Bitcoin. To maintain the stability of the network and the issuance of new coins, the Bitcoin protocol adjusts the difficulty every 2,016 blocks (roughly every two weeks) to keep the average block duration around 10 minutes. By the time block number 899,826 was found, the difficulty was at its highest level up to that point, and the global network was processing more than 600 exahashes per second – meaning 600 quintillion attempts every second to find the next block.
Source: cointelegraph
How a solo miner mined a block of 899826
On June 5, 2025, a solo miner managed to mine Bitcoin block number 899,826 and earn more than $330k in the process. There were 3,680 transactions involved in the block, and the reward totaled about 3,151 BTC (3,125 BTC subsidy + 0,026 BTC fees). What makes this case special is the fact that the block was found through Solo CKPool, a platform that allows individuals to search for the entire block on their own without sharing the reward. According to CKPool administrator Con Kolivas, only one “worker” was active at the time of discovery, which clearly shows that this is not a permanent mining operation but a temporary attempt. The miner reached a peak power of about 259 petahashes per second, which was likely achieved with rented computing power from the cloud mining market. This tactical burst approach – increasing the hashrate in the short term to increase the chances of winning – is becoming an increasingly common strategy among independent miners.
Source: cointelegraph
Solo vs Pool Mining
The main difference between solo and pool mining lies in the distribution of rewards and the level of risk. In mining pools, multiple participants pool their computing power, and rewards are distributed in proportion to each miner’s contribution. This reduces risk and ensures a stable, albeit smaller, income. With solo mining , the situation is completely different – the miner either finds the entire block and keeps 100% of the reward, or gets nothing. This makes solo mining riskier, especially when using hired computing power, but also significantly more attractive due to the potentially large gains. In this case, it was this approach that brought success: by combining the right moment, rented hashrate and a solo reward model, the miner was able to turn a small statistical chance into a win worth more than $ 330 thousand.
Source: cointelegraph
When an individual beats the net
When block 899,826 was mined, Bitcoin’s weight was at an all-time high, making this and similar cases particularly interesting. In 2025 alone, there were two more similar solo successes – on February 10 and April 10 – and each brought a prize of more than $300,000. Although rare, such events show that solo mining still remains possible, especially when using short-term leased computing power. The implications of these examples go beyond the news itself: they pave the way for small-scale miners to win potential rewards through temporary access to strong infrastructure, they suggest space for hybrid strategies to mining pools, and cloud mining brings the growing demand for on-demand solutions to the market And while the network is still dominated by large operations, such strategic solo attempts show that individuals can also leave a mark even under record-breaking challenges.
Source: cointelegraph
What does this tell us about solo mining?
Events like this show how Bitcoin mining is constantly adapting. The increasing difficulty confirms the maturity and security of the network, but at the same time proves that solo mining has not disappeared – it is just changing thanks to new tools and tactics. Platforms like Solo CKPool, once understood as a “mining lottery,” are now behind rare but significant wins. At the same time, cloud hashrate markets allow miners without their own infrastructure to implement targeted, short-term strategies that, while risky, can yield exceptional rewards. Whether such successes will become more common is difficult to say because they require a combination of capital, the right moment and technical performance. But the fact that they are still possible provides an important contrast to the idea that mining is reserved only for industrial giants. Increasingly, success depends not only on the power of the hardware, but also on strategy and flexibility. The chances remain slim – but they are clearly not zero, which is enough incentive for others to keep trying.
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