Why Is “Umpire’s Call” A Thing In Cricket DRS?

The ball is hitting the stumps on replay. Fans are screaming for a wicket. And yet, the decision stays “not out.” If you’ve ever wondered why is “umpire’s call” a thing in cricket DRS, the answer comes down to one simple idea: technology predicts, it doesn’t guarantee.

The Decision Review System was built to correct clear umpiring errors — not to replace the umpire entirely. Umpire’s Call exists to protect that balance.

Umpire’s Call Breakdown

The Core Idea: Prediction, Not Proof

Systems like Hawk-Eye track the ball’s actual path up to impact, then predict where it would have gone afterward. That prediction is extremely accurate, but it still carries a small margin of uncertainty. When the ball-tracking shows a marginal result — say, just clipping the stumps — the system isn’t confident enough to override a human decision. So it defers to what the umpire originally called on the field.

Why Not Just Trust The Technology Fully?

This is where most of the controversy comes from. Legends like Sachin Tendulkar and Shane Warne have openly criticized Umpire’s Call, arguing that if the ball is shown hitting the stumps, it shouldn’t matter how marginally — out is out. Warne famously said the ball “cannot be out and not out at the same time.”

But ICC Cricket Committee chairman Anil Kumble has defended the rule, explaining that DRS was designed to fix clear, obvious errors while still preserving the umpire’s role as the primary decision-maker on the field. Umpire’s Call is the mechanism that keeps that balance intact, rather than letting a predictive model make every final call.

A Rule That Keeps Evolving

The margins for Umpire’s Call haven’t stayed static. The ICC has adjusted the wicket zone size over the years, and proposals have even floated reducing the required margin from 50% to 25% for an on-field decision to be overturned. Notably, the IPL scrapped Umpire’s Call altogether in 2021, showing that even cricket’s biggest stakeholders remain divided on it.

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