Compute the missing-event probability
Under a simplified independent-round model with fixed event probability p, the chance of zero hits in N rounds is (1 − p)^N. This is a model calculation, not a promise that a hit must follow the sequence.
Why context matters
One hundred rounds can be unusually long for a common result but unremarkable for a very rare one. Check the official rules and use the correct outcome probability before labelling any observed streak exceptional.
A sensible monitoring setup
Keep a live missed-round count and a last-seen timestamp. Configure an alert at a threshold chosen for observation, then review recorded history and feed quality before reacting.
Working with the historical data
For a useful comparison, specify the recording date, timezone, game table and observation window. A historical count without those details can easily be interpreted outside the circumstances in which it was measured. Distinguish theoretical probabilities described in game rules from estimated frequencies measured in a particular data source.
Record-based tools are most useful when they make observations reproducible. If a chart cannot be reconciled with the underlying event history, it needs a data-quality review before anyone treats its values as authoritative.
Frequently asked question
Does the probability rise after a miss streak?
In an independent fixed-probability model, the next-round probability remains p; observed streak length does not change it.