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How to determine your win number and create a perfect voter outreach plan

Published: Jul 27, 2023

1 Vote.  

One vote is all it took for Republican George Wiggins to defeat Democrat Fred Belair in the New Hampshire Senate elections in 1982. George Wiggins secured 5,352 votes whereas Fred Belair was able to secure only 5,351 votes. 

This example makes it quite clear that to win an election, you don’t need to convince a large number of people to vote for you, you just need to convince enough.

So how do you find out how many people are “enough”? That’s what we’ll be looking at in this article. 

What is a Win Number?

Your “Win Number” is the minimum number of votes you need to secure a majority and win an election. It’s as simple as that.

Every political campaign begins with determining a win number. 


Because your win number is the objective of the whole campaign (or at least it encompasses it). It is what you set out to achieve. 

So, how do you calculate the win number for elections you are competing for? 

How to calculate your win number

To get a better understanding of how to calculate your win number, let’s walk through a real example.

Imagine your candidate is competing for the US Senate in the 2018 midterm elections from the district of Wyoming. We will work with voter registration and turnout statistics given by the Wyoming Election Division here.

Another assumption we’ll be making is that your candidate is already through the primary and is now up in the general election. 

Here’s how you’d go about calculating your win number:

Step 1: Calculating the expected voter turnout

The first step towards determining your win number is getting an idea of how many people you expect to come out and vote. Not just for your candidate, but overall.

Why do you need it?

The expected voter turnout is an estimate of the number of eligible voters who will cast a ballot in the elections. This number will help you get the estimated number of votes you’ll need in your favor to win.

Since there are a number of factors in play that affect voter turnout, it’s nearly impossible to determine the exact number.

However, working with an expected number is good enough to set an objective for you. 

How to calculate voter turnout

Determining the expected voter turnout is quite a simple calculation. All you need is the voter turnout from the past few terms. 

Note on using election data for win number

Generally, voter registration and turnout data are available at the voter registrar office of the district. Most of the time, this data is also available online. 

Per our assumption, your candidate is competing in the general midterm elections. Going by the data we have for Wyoming from the sources above, here are the numbers: 

Wyoming Voter Data

The formula to calculate the expected turnout is quite simple:

Formula to calculate expected voter turnout

The % average expected ballots as per our data is:

(65%+91%+75%)/3 = 77%

Number of registered voters = 276,696

So, the expected voter turnout for the 2018 general midterm elections can be calculated as:

Calculated expected voter turnout

Now that you have an estimate of how many people will turn up to vote during the elections, you can move to the next step.

Step 2: Calculating the vote goal

The next step after determining the expected voter turnout is defining the vote goal. This is the approximate number of votes you’ll need to secure a clear majority and win. 

Why do you need it?

With a vote goal in mind, you’ll get an idea of the minimum number of voters you need to convince to support you. A vote goal will allow you to prioritize your target voters and plan out your outreach strategies.

For instance, if you’re planning to reach out to voters through phone banking, you know you only need to call a specific number of people (typically the swing voters) in an area and not everyone. 

This, in turn, is important to ensure that your campaign resources are utilized well. 

How to calculate your vote goal

In an ideal world, you’d only need 50% of all votes plus 1 to secure a majority. But since there are a number of factors in play during elections, it’s safe to take a margin of 3%. 

So getting 53% of the votes would actually be a good enough number to be sure of a win.

But again, you can’t be sure about successfully reaching out to exactly 53% of the population and converting everyone. Hence an extra safety margin of around 20% is taken into consideration.

You can increase the safety margin in states where you might not be a clear majority. 

Let’s assume a safety margin of 20% for our example. 

Bringing it all together, the formula to calculate your vote goal is as follows:

Formula to calculate basic win number

Based on this, our Vote Goal (also referred to as the Win Number) is calculated by:

Formula to calculate win number

So as per the data from Wyoming, the basic win number for your party competing in the 2018 elections would be:

Calculated basic win number

The Vote goal for the elections would be:

Calculated win number

Therefore, for your candidate to win the 2018 elections, they would have had to target at least 135,502 voters to gather their support and secure a majority.

Now, if we take a look at the actual numbers of the Wyoming 2018 general midterm elections, here is what we have: 

Wyoming acutal vs. calculated win number table

You can take a look at the results of the election here.

Now that you have your win number at hand, what do you do next? 

How to strategize your targeting based on your win number

To strategize voter targeting, your first step would be to classify all voters into different segments. Typically, these segments comprise of the following: 

  • Strong supporter
  • Supporter
  • Undecided (Swing Voter)
  • Not a supporter 
  • Strong Opposition

By running an effective voter identification campaign, you’ll be able to classify all registered voters into these segments. 

For more insights into how to run a voter identification campaign, you can refer to this article: How to run a voter id campaign with Votebuilder 

1. Party Supporters (% share):

This chunk of people comprises your strong supporters and supporters as per the above segments.

People who have been voting for your party or have shown a keen interest in your party’s objectives qualify for this segment. 

How to target them?

Strong supporters will not require a lot of effort to convince them to vote for you.

In fact, you can involve them in your campaigning efforts by encouraging them to help spread your message and draw in more supporters from their networks or communities. 

Supporters, on the other hand, consist of people who support your candidate, but might not be motivated enough to come out and vote.  Hence, your primary goal while targeting them would be to convince them to get out and vote on election day. 

A peer-to-peer texting campaign accompanied by a social media or email campaign would be a good way to motivate these supporters. 

2. Undecided or Swing Voters (% share):

This group of people would be those who don’t have a strong opinion of any of the parties.

Those who haven’t consistently supported a particular party in the past would be included in this segment. Even first-time voters or fresh voters can be included in this group. 

How to target them

This segment is the most crucial segment for your targeting efforts. A significant part of your campaign resources should be used to win over swing voters. 

For this group of people, your goal would be to get them to believe in your party’s objectives and inspire them to vote on election day. 

Targeting them would require you to conduct a good mix of online and offline targeting campaigns.

Your offline efforts would typically include phone banking, peer to peer texting, door to door canvassing, and community meetings/rallies.

Online efforts would be supported by media ads, social media campaigns, emails, and your party website. 

3. Opposition Supporters (% share)

People not rooting for you or strongly against you make up this segment. Individuals who are keen on the objectives of the opposition parties or those who strongly oppose your ideologies qualify to be in this segment. 

How to target them?

Targeting this group of people may not yield any benefit for your party. However, resources are not a restriction, you could target the “not supporter” segment to bring them on your side.

You will have to target this segment with highly personalized campaigns supported by phone banking or door to door canvassing.

To turn this group of people, your volunteers/candidate will have to address their issues in-person to understand the reasons they believe in the opposition and what you could do to get their support. 

>> For a more detailed understanding on how to persuade your target voters, check out this article: 3 step guide to persuading your target voters

Getting back to how this segmenting will help you with your vote goal. Well, let’s go back to the Wyoming election example.

Going by the party affiliation data as given by the Pew Research Center, here’s what we have:

Wyoming party affiliation data

In case you’re a candidate from the democratic party, here’s how you can plan your targeting:

Party supporters

25% X Expected voter turnout = 53,263 

You’ll be targeting this group of people using GOTV campaigns and encouraging peer to peer awareness campaigns. 

Swing Voters

18% X Expected voter turnout = 38, 349

You will have to reach out to this set of people using partisan campaigns. 

Based on this, your vote goal deficit comes out to

Vote goal deficit

Opposition supporters

18% X Expected voter turnout = 121,441

Number of voters to target for deficit

Hence, the vote goal allows you to better plan the type of outreach campaigns that you can employ to achieve that goal. 


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