How does a data race differ from a race condition?

Race condition — is a situation in a multithreaded or concurrent environment where the outcome of a program depends on the order of operations, which can lead to unpredictable behavior.

Data race — a specific case of race condition, where two or more threads access the same variable simultaneously, and at least one thread performs a write without proper synchronization. This leads to undefined data states and errors.

In other words:

• Race condition — a more general term about issues with execution order.
• Data race — a specific problem with concurrent access to data without synchronization.

In Go, data races can be detected using the go run -race tool.