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What Is a Ballpark Estimate?

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  • Written By: Malcolm Tatum
  • Edited By: Bronwyn Harris
  • Last Modified Date: 29 November 2016
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    Conjecture Corporation
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A ballpark estimate is a term used to identify an approximation of an outcome that is based on the information that is readily available to the person or group who is making the estimate. Unlike a guess, a ballpark estimate takes into consideration data that can be verified with relative ease and employs expertise in making rational projections based on that data, coming up with an answer that is reasonable in light of all known factors. By contrast, a guess is tends to rely more on subjective understandings and less on verifiable data.

The fanciful name for the ballpark estimate comes from the allusion to many types of sports that are played in a ballpark. The concept has to do with coming up with an estimate that, like the ball that is struck with a bat and lands somewhere within the contained area of the park, is within reasonable distance from the goal. While not considered an actual quotation or covenant, the estimate serves as a guideline for determining whether to move forward with a project, or to abandon it in favor of some other activity.

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With a ballpark estimate, the data available for analysis and consideration in forming the estimate provides the essential range of values necessary to come up with a reasonable answer. Within the scope of that estimate, it is understood that should other relevant information appear during the project, the outcome could be changed in some manner. For example, a car insurance agent may present a ballpark estimate to a potential client, based on the known details about the customer. If the agent finds out later that the customer has several tickets over the last couple of years and an accident or two that was not reported at the time the estimate was requested, this will make an impact on the final premium that the agent extends to that client.

While a ballpark estimate is not the final word, it will take into consideration enough information to make a reasonable guess at the final outcome. In actual practice, an estimate of this type may be very close to the outcome, especially if no previously unknown factors arise that have any real bearing on the result. At other times, the appearance of a significant amount of information that was not taken into consideration previously can render the estimate more or less useless. Typically, a ballpark estimate is not considered binding and serves only as a guideline until it is possible to determine the outcome more precisely.

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Reminiscence
Post 2

I once tried to get an online insurance quote, and the site asked me to answer a few general questions. It actually said I would receive a ballpark figure in a few minutes, based on my answers. If I was happy with that car insurance estimate, I could fill out a more detailed application and a real life insurance agent would contact me with a more specific set of numbers.

I guess a lot of people were more interested in getting ballpark estimate from several different insurance companies than getting specific numbers from agents. I know there are times when all I want from a repairman or contractor is a rough estimate.

Inaventu
Post 1

I remember when I needed to get some repairs done on my house, I called a general contractor and he started listing all of the things that needed attention. It was a much longer list that I anticipated. I asked him to give me a ball park estimate on the cost of repairs, and he said $20,000 or so. That's a mighty big ballpark, but at least I knew how much to borrow from the bank if he did everything on that list. The actual cost turned out to be much less, but at least the ballpark figure prepared me for the worst.

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