US President Election Odds: A Guide for Australians to the 2028 Race

Which US presidential election do the odds cover?

The 2028 US presidential election odds discussed here concern a process that begins well before election day. Parties choose nominees through processes that include primaries, caucuses and conventions. The general election follows, after which electors vote and Congress counts the electoral votes.

The Electoral College is important when interpreting an election-winner market. US voters generally choose electors pledged to presidential candidates, and the electoral vote determines who is elected. The candidate with the most votes nationally does not necessarily win the presidency.

Election terminology does not automatically define a bet. A market concerning the national popular vote asks a different question from one concerning the election winner. A market referring to the next person inaugurated as president may also have a different settlement definition.

The Federal Election Commission defines a presidential election cycle for administrative purposes, but that cycle does not establish that anyone listed in a betting market is a candidate or a party nominee.

• Primaries and caucuses: parties hold contests as part of choosing their nominees.
• Nominations: parties formally select their candidates.
• General election: voters choose among candidates on the ballot.
• Electoral votes and congressional count: the presidential result proceeds through the Electoral College process.

How to read election odds

Australian wagering providers commonly display decimal odds. The number represents the potential total return for each dollar staked on a winning selection, including the original stake.

For a simple hypothetical example, suppose a selection is offered at 4.00 and you stake A$10. If it wins, the total return is A$40: the A$10 stake plus A$30 profit. This is before any applicable fees or other adjustments. If the bet loses, the A$10 stake returns nothing in this example.

You can convert a decimal price into a raw implied probability by dividing 1 by the odds and multiplying by 100. At 4.00, the calculation is 1 ÷ 4.00 × 100, giving 25%. That is a price-implied percentage, not a promise that the selection has a one-in-four chance of winning.

A shorter decimal price indicates a higher raw implied probability than a longer price. For example, 2.00 implies 50%, while 4.00 implies 25%. Both outcomes remain uncertain, and the prices alone do not explain why a provider has offered them.

• Hypothetical stake: A$10
• Decimal odds: 4.00
• Winning total return: A$40, including the stake
• Winning profit: A$30 before applicable adjustments
• Raw implied probability: 25%

Margin, polls and forecasts

A bookmaker’s prices can include a margin. In a complete fixed-odds market, adding the raw implied probabilities for every possible outcome can produce a total above 100%. The excess is called the overround.

For example, three hypothetical, mutually exclusive outcomes priced at 2.00, 3.00 and 4.00 imply approximately 50%, 33.33% and 25%. Together they total about 108.33%, an overround of approximately 8.33 percentage points. This illustration assumes those three outcomes make up the complete market.

The raw 25% implied by a price of 4.00 is not necessarily the bookmaker’s estimate of the true probability. Removing a margin from individual prices requires further assumptions; it is not as simple as subtracting the whole overround from one selection.

Polls, forecasts and betting prices also answer different questions. A poll reports responses from a surveyed group at a particular time. A forecast may combine polls and other information in a model. A betting price is a term offered or traded, which can reflect margin, demand and trading conditions as well as expectations about events.

A poll showing support for a candidate should therefore not be treated as directly equivalent to that candidate’s price-implied chance of winning. Neither measure is an election result.

Common presidential election betting markets

Presidential election betting markets can concern a named person, a party or an earlier stage of the election process. Before comparing prices, establish that the selections refer to the same event.

Research for this guide found 2028 election-winner, winning-party and Democratic and Republican nomination markets displayed on Sportsbet’s Australian US politics page. That historical listing is an example, not a verified live price snapshot or a guarantee that any market remains open or accessible to a particular customer.

In an individual winner market, the selection is a named person who must satisfy the provider’s definition of the winner. In a winning-party market, the selection concerns a party. If a party replaces its candidate, those selections may be affected differently, depending on the applicable rules.

A nomination market concerns the earlier question of who becomes a party’s nominee. Hypothetically, a person could win their party’s nomination and then lose the general election. A successful nomination selection and an unsuccessful election-winner selection could therefore relate to the same person without contradicting each other.

A name appearing in any market does not prove that the person has declared a candidacy, secured a nomination or is eligible for office. Verify those matters separately rather than relying on a betting listing.

• Individual election winner: which named person meets the market’s winner definition?
• Winning party: which party meets the market’s specified outcome?
• Party nominee: which person meets the market’s nomination definition?

What can move US election odds?

US election odds can change as new information becomes available and as providers or market participants adjust their prices. A price offered well before nominations may reflect considerable uncertainty about who will ultimately run.

Possible influences include candidate announcements or withdrawals, polling releases, debates, nomination developments and other campaign events. Betting demand and a provider’s exposure may also affect the terms offered.

A price changing after a poll or announcement does not by itself prove that the event caused the movement. Other information and trading activity may have contributed at the same time.

To assess a reported movement, compare the same selection in the same market at the same provider, with reliable timestamps for both prices. A bookmaker’s current offer and an exchange’s last traded price are different measures; a gap between them is not, on its own, evidence that one price moved.

This guide does not identify a current favourite or quote live prices. A current comparison would need a fresh check of the provider, market, selection, price and observation time.

US election betting considerations for Australians

The research found US presidential markets displayed by an Australian provider that was identified on the Australian Communications and Media Authority’s register. That supports a qualified answer to the access question: some Australian-licensed wagering providers have listed these markets, but a listing does not mean every customer can access them or that a bet will be accepted.

Online wagering is intended for adults aged 18 and over. A provider may require an account and identity checks, and a market can be suspended, restricted or withdrawn. Check the provider’s current requirements and the precise market rather than assuming availability from an older listing.

The Commonwealth Interactive Gambling Act regulates interactive gambling services offered to people in Australia, and relevant operators are licensed by state or territory authorities. ACMA’s register is a useful starting point for checking an operator and its licensing authority. A register entry does not establish that every product or selection is available or authorised in every circumstance.

This is general information, not a state-by-state assessment or legal advice. If your circumstances or the market’s status are unclear, check with the provider and the relevant state or territory regulator.

• Check the operator and licensing authority on ACMA’s register.
• Confirm that the exact market and selection are currently available to you.
• Check account, identity and other eligibility requirements.
• Read the current market-specific rules before considering a bet.
• Consult the relevant regulator if you need jurisdiction-specific clarification.

Payment restrictions and gambling support

ACMA says credit cards and digital currency cannot be used to place bets under Australia’s online wagering credit ban. The rule should not be generalised to every gambling product: ACMA identifies exceptions for some other products, including lotteries.

Gambling involves a risk of losing money. Set a limit you can afford to lose, and do not treat election odds as a way to recover losses or generate income.

Free, confidential support is available through Gambling Help Online or the National Gambling Helpline on 1800 858 858. BetStop lets people self-exclude from Australian-licensed online and phone wagering services.

How election bets are settled

Settlement is the process by which a provider decides whether a bet has won, lost or should be voided under the applicable rules. For a presidential election bet, the market title alone may not tell you which event determines that decision.

Election night can involve media projections and candidate concessions before later official stages. A provider might specify one of these events, an official declaration, an electoral count, inauguration or another criterion. Do not assume that all providers wait for the same point or treat later developments in the same way.

Withdrawal is another important distinction. Some markets may be offered on an ‘all in, run or not’ basis, meaning a selection that withdraws is not necessarily refunded. Whether that applies depends on the actual terms; a refund should never be assumed.

Detailed political-market rules exist, but the Sportsbet rules identified in the supplied research included wording specific to the 2024 election. They cannot establish what applies in 2028. If current terms are unavailable or unclear, ask the provider for the applicable market-specific rules before placing a bet.

• Which event determines the result: a projection, declaration, electoral count, inauguration or another event?
• What happens if a selection withdraws or is found ineligible?
• How are delays, recounts, disputes and legal challenges treated?
• When can the provider suspend, void or resettle the market?
• What happens if a party replaces its nominee?

Comparing prices without comparing different bets

Start with the event, not the largest number. A price on a person to win a nomination is not directly comparable with a price on that person to win the presidency. Even two election-winner markets can have different settlement terms.

Check the full market name, the named selection, the provider’s rules and whether the price is currently available to you. A displayed price can change before a bet is placed or accepted, so an older article or screenshot is not a reliable live quote.

Where exchanges are available, they match customer orders rather than simply offering a conventional bookmaker price. Available liquidity, prices and commission can affect a comparison. The research did not verify an Australian-accessible 2028 election exchange market or a market-specific commission rate, so neither should be assumed.

Keep a comparison in context: a higher potential return also means the selection is priced at a lower raw implied probability. No comparison removes the possibility of losing the stake.

FAQ

How do I read US presidential election betting odds?

Divide 1 by the decimal price and multiply by 100 to get its raw implied probability. At hypothetical odds of 4.00, the figure is 25%, and a winning A$10 stake would return A$40 in total before applicable adjustments. The percentage is not adjusted for margin and is not a guaranteed chance.

Do the shortest odds mean a candidate will win?

No. Shorter decimal odds indicate a higher raw price-implied likelihood than longer odds, but the outcome is still uncertain. Prices can reflect a provider’s margin and trading conditions as well as expectations about the election.

Can Australians bet on the US presidential election?

Research for this guide found US presidential markets listed by an Australian-licensed wagering provider. Availability depends on the provider, the particular market and the customer’s circumstances. Check ACMA’s register, the current listing and the applicable terms; neither a licence nor a listing guarantees that a bet will be accepted.

How is a presidential election bet settled?

Settlement depends on the provider’s market-specific terms. Check which event determines the winner and how the rules address withdrawals, disputes, delays and any later changes to the result. A media call, official count or inauguration is not universally decisive for every market.

Why do election odds change?

Prices can change as information, expectations, betting demand and provider exposure change. Polls, campaign events and candidate announcements may be relevant, but a price moving after an event does not prove that event caused the change.

Is winning a party nomination the same as winning the election?

No. A nomination selects a party’s candidate; the general election is a separate contest. A person can win a nomination and lose the general election, and each betting market has its own settlement terms.

Will I get my stake back if a candidate withdraws?

Not necessarily. Some markets may be offered on an ‘all in, run or not’ basis, under which a withdrawing selection is not automatically refunded. Read the current market-specific rules or ask the provider how withdrawal is treated.