Who is favored to win South Dakota Senate Election Winner on Polymarket?

Mike Rounds (R), at 95%, ahead of Brian Bengs (I) at 5%; $124k has traded on the event. Odds are each outcome's live Yes price and re-render every 15 minutes here; a cloned dashboard refreshes on your plan's cadence — every minute on Developer.

What are the odds for each outcome of South Dakota Senate Election Winner?

Mike Rounds (R) 95%, Brian Bengs (I) 5%, Democrat 0%. Every outcome's odds, weekly move and volume are in the table on this page; the prices are the live Yes price of each outcome's own Polymarket market, so they add up to about 100%.

Where does this data come from?

Each outcome's live price, volume and history from Polymarket's public APIs, plus Polynyx's analytics layer for the smart money: 500M+ on-chain fills rebuilt into wallet P&L and positioning, with arbitrage and market-maker bots filtered out. The wallet-level view of the favourite — every smart wallet by name — lives on Polynyx.

Can I make this my own dashboard?

Yes. Use this template clones 7 widgets into your account — the odds lines of the two favourites, the smart money and the biggest holders on Mike Rounds (R), the Elections markets and tape — and publishes as a page of its own.

Politics · Elections · 3 outcomes · live

South Dakota Senate Election Winner

South Dakota Senate Election Winner on Polymarket: Mike Rounds (R) leads at 95%, ahead of Brian Bengs (I) at 5% and Democrat at 0%. 3 outcomes are listed, $124k has traded on the event, $189k sits in the books; it closes Nov 4, 2026. The week's biggest move is Brian Bengs (I), +0.9 pts. 1 ranked wallet are fading Mike Rounds (R) at an average entry of 7¢. Every smart wallet on Mike Rounds (R) on Polynyx ↗

Mike Rounds (R)
95%
Brian Bengs (I)
5%
Ranked wallets
fade Mike Rounds (R)
Mover · 7d
Brian Bengs (… +0.9 pts

Trade like a whale.Every smart wallet on Mike Rounds (R) by name, their entries and the live tape — on Polynyx.Trade like a whale ↗

live

outcomes

$124k

volume

$189k

liquidity

Nov 4

closes

South Dakota Senate Election Winner · odds race

Odds history

Every outcome by odds

3 outcomes

1Mike Rounds (R)95%
2Brian Bengs (I)5.4%
3Democrat0.1%

Every outcome

Odds for all 3 outcomes.

Each outcome is its own Polymarket market; the odds are its live Yes price, the move is over the past week. Open an outcome for its odds history, the smart money on each side, holders and the tape.

Outcome	Odds	7d	Volume	Status
1Mike Rounds (R)	95%	—	$63k	live
2Brian Bengs (I)	5%	+0.9 pts	$42k	live
3Democrat	0%	—	$19k	live

More Politics events

FAQ

Who is favored to win South Dakota Senate Election Winner on Polymarket?: Mike Rounds (R), at 95%, ahead of Brian Bengs (I) at 5%; $124k has traded on the event. Odds are each outcome's live Yes price and re-render every 15 minutes here; a cloned dashboard refreshes on your plan's cadence — every minute on Developer.
What are the odds for each outcome of South Dakota Senate Election Winner?: Mike Rounds (R) 95%, Brian Bengs (I) 5%, Democrat 0%. Every outcome's odds, weekly move and volume are in the table on this page; the prices are the live Yes price of each outcome's own Polymarket market, so they add up to about 100%.
Where does this data come from?: Each outcome's live price, volume and history from Polymarket's public APIs, plus Polynyx's analytics layer for the smart money: 500M+ on-chain fills rebuilt into wallet P&L and positioning, with arbitrage and market-maker bots filtered out. The wallet-level view of the favourite — every smart wallet by name — lives on Polynyx.
Can I make this my own dashboard?: Yes. Use this template clones 7 widgets into your account — the odds lines of the two favourites, the smart money and the biggest holders on Mike Rounds (R), the Elections markets and tape — and publishes as a page of its own.

Part of the Election odds Polymarket dashboard. Browse every live event, the single markets or the top wallets. Prefer code? The same data is a REST API and MCP server.