The Prediction Markets

Series Game Spread: Tampa Bay vs Milwaukee

Starts in 10 hKickoff
Traded
$164K
Venues
Polymarket, Kalshi
Prices updated
just now
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What the markets expect

Milwaukee Brewers O/U 1.5 82.5%

Next is O/U 3.5 at 81%. The venues list this event, but none of their outcomes are matched yet, so prices are shown separately.

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 9 min ago. Ages are as of when this page was built.

  • Polymarket
  • Kalshi
Milwaukee Brewers O/U 1.5
82.5%
Polymarket 82.5%polled, 18s agoBest Yes 85¢ on Polymarket, $100 pays $118 (1.18x)
Polymarket
Contract
Milwaukee Brewers O/U 1.5
Last price
82.5%
As of
Polled just now
Buy Yes
85¢
Sell Yes
80¢
$100 on Yes pays
$118 (1.18x)
Trade this on Polymarket
O/U 3.5
81%
Polymarket 81%polled, 18s agoBest Yes 82¢ on Polymarket, $100 pays $122 (1.22x)
Polymarket
Contract
O/U 3.5
Last price
81%
As of
Polled just now
Buy Yes
82¢
Sell Yes
80¢
$100 on Yes pays
$122 (1.22x)
Volume
$179
Trade this on Polymarket
O/U 4.5
73%
Polymarket 73%polled, 18s agoBest Yes 74¢ on Polymarket, $100 pays $135 (1.35x)
Polymarket
Contract
O/U 4.5
Last price
73%
As of
Polled just now
Buy Yes
74¢
Sell Yes
72¢
$100 on Yes pays
$135 (1.35x)
Volume
$32
Trade this on Polymarket
Tampa Bay Rays O/U 1.5
68.5%
Polymarket 68.5%polled, 18s agoBest Yes 71¢ on Polymarket, $100 pays $141 (1.41x)
Polymarket
Contract
Tampa Bay Rays O/U 1.5
Last price
68.5%
As of
Polled just now
Buy Yes
71¢
Sell Yes
66¢
$100 on Yes pays
$141 (1.41x)
Volume
$3
Trade this on Polymarket
Milwaukee Brewers O/U 2.5
66.5%
Polymarket 66.5%polled, 18s agoBest Yes 68¢ on Polymarket, $100 pays $147 (1.47x)
Polymarket
Contract
Milwaukee Brewers O/U 2.5
Last price
66.5%
As of
Polled just now
Buy Yes
68¢
Sell Yes
65¢
$100 on Yes pays
$147 (1.47x)
Trade this on Polymarket
1st 5 Innings O/U 2.5
61%
Polymarket 61%polled, 18s agoBest Yes 62¢ on Polymarket, $100 pays $161 (1.61x)
Polymarket
Contract
1st 5 Innings O/U 2.5
Last price
61%
As of
Polled just now
Buy Yes
62¢
Sell Yes
60¢
$100 on Yes pays
$161 (1.61x)
Volume
$5
Trade this on Polymarket
O/U 5.5
60.5%
Polymarket 60.5%polled, 18s agoBest Yes 61¢ on Polymarket, $100 pays $164 (1.64x)
Polymarket
Contract
O/U 5.5
Last price
60.5%
As of
Polled just now
Buy Yes
61¢
Sell Yes
60¢
$100 on Yes pays
$164 (1.64x)
Volume
$183
Trade this on Polymarket
Tampa Bay Rays O/U 0.5
53%
Polymarket 53%polled, 18s agoBest Yes 99¢ on Polymarket, $100 pays $101 (1.01x)
Polymarket
Contract
Tampa Bay Rays O/U 0.5
Last price
53%
As of
Polled just now
Buy Yes
99¢
Sell Yes
7¢
$100 on Yes pays
$101 (1.01x)
Trade this on Polymarket
O/U 6.5
51.5%
Polymarket 51.5%polled, 18s agoBest Yes 52¢ on Polymarket, $100 pays $192 (1.92x)
Polymarket
Contract
O/U 6.5
Last price
51.5%
As of
Polled just now
Buy Yes
52¢
Sell Yes
51¢
$100 on Yes pays
$192 (1.92x)
Volume
$2K
Trade this on Polymarket
Milwaukee Brewers O/U 3.5
50.5%
Polymarket 50.5%polled, 18s agoBest Yes 52¢ on Polymarket, $100 pays $192 (1.92x)
Polymarket
Contract
Milwaukee Brewers O/U 3.5
Last price
50.5%
As of
Polled just now
Buy Yes
52¢
Sell Yes
49¢
$100 on Yes pays
$192 (1.92x)
Trade this on Polymarket
Show 32 more outcomes
Tampa Bay Rays O/U 2.5
50%
Polymarket 50%polled, 18s agoBest Yes 51¢ on Polymarket, $100 pays $196 (1.96x)
Polymarket
Contract
Tampa Bay Rays O/U 2.5
Last price
50%
As of
Polled just now
Buy Yes
51¢
Sell Yes
49¢
$100 on Yes pays
$196 (1.96x)
Volume
$8
Trade this on Polymarket
Milwaukee Brewers vs. Tampa Bay Rays
48.5%
Polymarket 48.5%polled, 9 min agoBest Yes 50¢ on Polymarket, $100 pays $200 (2.00x)
Polymarket
Contract
Milwaukee Brewers vs. Tampa Bay Rays
Last price
48.5%
As of
Polled 9 min ago
Buy Yes
50¢
Sell Yes
47¢
$100 on Yes pays
$200 (2.00x)
Volume
$1K
Trade this on Polymarket
NRFI
48.3%
Polymarket 40%polled, 18s agoPolymarket 56.5%polled, 9 min agoBest Yes 41¢ on Polymarket, $100 pays $244 (2.44x)
Polymarket
Contract
NRFI
Last price
40%
As of
Polled just now
Buy Yes
41¢
Sell Yes
39¢
$100 on Yes pays
$244 (2.44x)
Volume
$98
Trade this on Polymarket
Polymarket
Contract
NRFI
Last price
56.5%
As of
Polled 9 min ago
Buy Yes
74¢
Sell Yes
39¢
$100 on Yes pays
$135 (1.35x)
Trade this on Polymarket
1st 5 Innings O/U 3.5
46.5%
Polymarket 46.5%polled, 18s agoBest Yes 47¢ on Polymarket, $100 pays $213 (2.13x)
Polymarket
Contract
1st 5 Innings O/U 3.5
Last price
46.5%
As of
Polled just now
Buy Yes
47¢
Sell Yes
46¢
$100 on Yes pays
$213 (2.13x)
Volume
$475
Trade this on Polymarket
Milwaukee -1.5 games
46%
Kalshi 46%polled, 18s agoBest Yes 47¢ on Kalshi, $100 pays $213 (2.13x)
Kalshi
Contract
Milwaukee -1.5 games
Last price
46%
As of
Polled just now
Buy Yes
47¢
Sell Yes
46¢
$100 on Yes pays
$213 (2.13x)
Volume
$11K
Trade this on Kalshi
Spread: Milwaukee Brewers (-1.5)
42.5%
Polymarket 42.5%polled, 18s agoBest Yes 43¢ on Polymarket, $100 pays $233 (2.33x)
Polymarket
Contract
Spread: Milwaukee Brewers (-1.5)
Last price
42.5%
As of
Polled just now
Buy Yes
43¢
Sell Yes
42¢
$100 on Yes pays
$233 (2.33x)
Volume
$2K
Trade this on Polymarket
O/U 7.5
37.5%
Polymarket 37.5%polled, 18s agoBest Yes 38¢ on Polymarket, $100 pays $263 (2.63x)
Polymarket
Contract
O/U 7.5
Last price
37.5%
As of
Polled just now
Buy Yes
38¢
Sell Yes
37¢
$100 on Yes pays
$263 (2.63x)
Volume
$18
Trade this on Polymarket
Tampa Bay Rays vs. Milwaukee Brewers
37.5%
Polymarket 37.5%polled, 18s agoBest Yes 38¢ on Polymarket, $100 pays $263 (2.63x)
Polymarket
Contract
Tampa Bay Rays vs. Milwaukee Brewers
Last price
37.5%
As of
Polled just now
Buy Yes
38¢
Sell Yes
37¢
$100 on Yes pays
$263 (2.63x)
Volume
$134K
Trade this on Polymarket
1st 5 Innings Spread: Milwaukee Brewers (-1.5)
37%
Polymarket 37%polled, 18s agoBest Yes 39¢ on Polymarket, $100 pays $256 (2.56x)
Polymarket
Contract
1st 5 Innings Spread: Milwaukee Brewers (-1.5)
Last price
37%
As of
Polled just now
Buy Yes
39¢
Sell Yes
35¢
$100 on Yes pays
$256 (2.56x)
Trade this on Polymarket
Milwaukee Brewers O/U 4.5
36.5%
Polymarket 36.5%polled, 18s agoBest Yes 38¢ on Polymarket, $100 pays $263 (2.63x)
Polymarket
Contract
Milwaukee Brewers O/U 4.5
Last price
36.5%
As of
Polled just now
Buy Yes
38¢
Sell Yes
35¢
$100 on Yes pays
$263 (2.63x)
Volume
$5
Trade this on Polymarket
Tampa Bay Rays O/U 4.5
35.5%
Polymarket 35.5%polled, 18s agoBest Yes 51¢ on Polymarket, $100 pays $196 (1.96x)
Polymarket
Contract
Tampa Bay Rays O/U 4.5
Last price
35.5%
As of
Polled just now
Buy Yes
51¢
Sell Yes
20¢
$100 on Yes pays
$196 (1.96x)
Trade this on Polymarket
Tampa Bay Rays O/U 3.5
35%
Polymarket 35%polled, 18s agoBest Yes 36¢ on Polymarket, $100 pays $278 (2.78x)
Polymarket
Contract
Tampa Bay Rays O/U 3.5
Last price
35%
As of
Polled just now
Buy Yes
36¢
Sell Yes
34¢
$100 on Yes pays
$278 (2.78x)
Trade this on Polymarket
1st 5 Innings O/U 4.5
33.5%
Polymarket 33.5%polled, 18s agoBest Yes 35¢ on Polymarket, $100 pays $286 (2.86x)
Polymarket
Contract
1st 5 Innings O/U 4.5
Last price
33.5%
As of
Polled just now
Buy Yes
35¢
Sell Yes
32¢
$100 on Yes pays
$286 (2.86x)
Volume
$5
Trade this on Polymarket
Spread: Milwaukee Brewers (-2.5)
30%
Polymarket 30%polled, 18s agoBest Yes 31¢ on Polymarket, $100 pays $323 (3.23x)
Polymarket
Contract
Spread: Milwaukee Brewers (-2.5)
Last price
30%
As of
Polled just now
Buy Yes
31¢
Sell Yes
29¢
$100 on Yes pays
$323 (3.23x)
Volume
$12
Trade this on Polymarket
O/U 8.5
29%
Polymarket 29%polled, 18s agoBest Yes 30¢ on Polymarket, $100 pays $333 (3.33x)
Polymarket
Contract
O/U 8.5
Last price
29%
As of
Polled just now
Buy Yes
30¢
Sell Yes
28¢
$100 on Yes pays
$333 (3.33x)
Trade this on Polymarket
Milwaukee -2.5 games
28%
Kalshi 28%polled, 18s agoBest Yes 28¢ on Kalshi, $100 pays $357 (3.57x)
Kalshi
Contract
Milwaukee -2.5 games
Last price
28%
As of
Polled just now
Buy Yes
28¢
Sell Yes
27¢
$100 on Yes pays
$357 (3.57x)
Volume
$5K
Trade this on Kalshi
Spread: Tampa Bay Rays (-1.5)
25.5%
Polymarket 25.5%polled, 18s agoBest Yes 26¢ on Polymarket, $100 pays $385 (3.85x)
Polymarket
Contract
Spread: Tampa Bay Rays (-1.5)
Last price
25.5%
As of
Polled just now
Buy Yes
26¢
Sell Yes
25¢
$100 on Yes pays
$385 (3.85x)
Volume
$942
Trade this on Polymarket
Milwaukee Brewers O/U 5.5
25%
Polymarket 25%polled, 18s agoBest Yes 28¢ on Polymarket, $100 pays $357 (3.57x)
Polymarket
Contract
Milwaukee Brewers O/U 5.5
Last price
25%
As of
Polled just now
Buy Yes
28¢
Sell Yes
22¢
$100 on Yes pays
$357 (3.57x)
Trade this on Polymarket
Tampa Bay -1.5 games
25%
Kalshi 25%polled, 18s agoBest Yes 25¢ on Kalshi, $100 pays $400 (4.00x)
Kalshi
Contract
Tampa Bay -1.5 games
Last price
25%
As of
Polled just now
Buy Yes
25¢
Sell Yes
23¢
$100 on Yes pays
$400 (4.00x)
Volume
$246
Trade this on Kalshi
1st 5 Innings O/U 5.5
23%
Polymarket 23%polled, 18s agoBest Yes 25¢ on Polymarket, $100 pays $400 (4.00x)
Polymarket
Contract
1st 5 Innings O/U 5.5
Last price
23%
As of
Polled just now
Buy Yes
25¢
Sell Yes
21¢
$100 on Yes pays
$400 (4.00x)
Trade this on Polymarket
O/U 9.5
20.5%
Polymarket 20.5%polled, 18s agoBest Yes 22¢ on Polymarket, $100 pays $455 (4.55x)
Polymarket
Contract
O/U 9.5
Last price
20.5%
As of
Polled just now
Buy Yes
22¢
Sell Yes
19¢
$100 on Yes pays
$455 (4.55x)
Trade this on Polymarket
Spread: Milwaukee Brewers (-3.5)
20.5%
Polymarket 20.5%polled, 18s agoBest Yes 21¢ on Polymarket, $100 pays $476 (4.76x)
Polymarket
Contract
Spread: Milwaukee Brewers (-3.5)
Last price
20.5%
As of
Polled just now
Buy Yes
21¢
Sell Yes
20¢
$100 on Yes pays
$476 (4.76x)
Volume
$20
Trade this on Polymarket
1st 5 Innings Spread: Tampa Bay Rays (-1.5)
16.5%
Polymarket 16.5%polled, 18s agoBest Yes 18¢ on Polymarket, $100 pays $556 (5.56x)
Polymarket
Contract
1st 5 Innings Spread: Tampa Bay Rays (-1.5)
Last price
16.5%
As of
Polled just now
Buy Yes
18¢
Sell Yes
15¢
$100 on Yes pays
$556 (5.56x)
Volume
$14
Trade this on Polymarket
1st 5 Innings O/U 6.5
15.5%
Polymarket 15.5%polled, 18s agoBest Yes 17¢ on Polymarket, $100 pays $588 (5.88x)
Polymarket
Contract
1st 5 Innings O/U 6.5
Last price
15.5%
As of
Polled just now
Buy Yes
17¢
Sell Yes
14¢
$100 on Yes pays
$588 (5.88x)
Trade this on Polymarket
Spread: Tampa Bay Rays (-2.5)
15%
Polymarket 15%polled, 18s agoBest Yes 16¢ on Polymarket, $100 pays $625 (6.25x)
Polymarket
Contract
Spread: Tampa Bay Rays (-2.5)
Last price
15%
As of
Polled just now
Buy Yes
16¢
Sell Yes
14¢
$100 on Yes pays
$625 (6.25x)
Volume
$606
Trade this on Polymarket
Spread: Milwaukee Brewers (-4.5)
13.5%
Polymarket 13.5%polled, 18s agoBest Yes 15¢ on Polymarket, $100 pays $667 (6.67x)
Polymarket
Contract
Spread: Milwaukee Brewers (-4.5)
Last price
13.5%
As of
Polled just now
Buy Yes
15¢
Sell Yes
12¢
$100 on Yes pays
$667 (6.67x)
Trade this on Polymarket
Tampa Bay -2.5 games
12%
Kalshi 12%polled, 18s agoBest Yes 12¢ on Kalshi, $100 pays $833 (8.33x)
Kalshi
Contract
Tampa Bay -2.5 games
Last price
12%
As of
Polled just now
Buy Yes
12¢
Sell Yes
11¢
$100 on Yes pays
$833 (8.33x)
Volume
$1K
Trade this on Kalshi
Milwaukee -3.5 games
10%
Kalshi 10%polled, 18s agoBest Yes 10¢ on Kalshi, $100 pays $1,000 (10.0x)
Kalshi
Contract
Milwaukee -3.5 games
Last price
10%
As of
Polled just now
Buy Yes
10¢
Sell Yes
9¢
$100 on Yes pays
$1,000 (10.0x)
Volume
$3K
Trade this on Kalshi
Spread: Tampa Bay Rays (-3.5)
9.5%
Polymarket 9.5%polled, 18s agoBest Yes 11¢ on Polymarket, $100 pays $909 (9.09x)
Polymarket
Contract
Spread: Tampa Bay Rays (-3.5)
Last price
9.5%
As of
Polled just now
Buy Yes
11¢
Sell Yes
8¢
$100 on Yes pays
$909 (9.09x)
Trade this on Polymarket
Extra Innings
9%
Polymarket 9%polled, 18s agoBest Yes 13¢ on Polymarket, $100 pays $769 (7.69x)
Polymarket
Contract
Extra Innings
Last price
9%
As of
Polled just now
Buy Yes
13¢
Sell Yes
5¢
$100 on Yes pays
$769 (7.69x)
Volume
$36
Trade this on Polymarket
Tampa Bay -3.5 games
5%
Kalshi 5%polled, 18s agoBest Yes 5¢ on Kalshi, $100 pays $2,000 (20.0x)
Kalshi
Contract
Tampa Bay -3.5 games
Last price
5%
As of
Polled just now
Buy Yes
5¢
Sell Yes
3¢
$100 on Yes pays
$2,000 (20.0x)
Volume
$509
Trade this on Kalshi
Spread: Tampa Bay Rays (-4.5)
4.5%
Polymarket 4.5%polled, 18s agoBest Yes 6¢ on Polymarket, $100 pays $1,667 (16.7x)
Polymarket
Contract
Spread: Tampa Bay Rays (-4.5)
Last price
4.5%
As of
Polled just now
Buy Yes
6¢
Sell Yes
3¢
$100 on Yes pays
$1,667 (16.7x)
Volume
$6
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle, source: mlb.com
Kalshi
Kalshi resolves via:
Kalshi (CFTC-regulated exchange), source: ESPN, the Governing League

How the odds have moved

The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.

  • Milwaukee Brewers O/U 1.5
  • O/U 3.5
  • O/U 4.5

Order books

Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.

Top of book

Connecting
Best bid
—
Spread
—
Best ask
—

Waiting for the first live quote…

Depth · top 8 levels

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Recent trades

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Kalshi

Kalshi doesn’t list Milwaukee Brewers O/U 1.5 for this event.

What your stake buys

Enter a stake to see where it buys the most after fees, using each venue’s live order book.

$
Buy

Loading both order books…

Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (sports rate). Fee calculator. Estimates only, not advice.

About this market

Live prediction market odds for "Series Game Spread: Tampa Bay vs Milwaukee". Milwaukee Brewers O/U 1.5 leads at 82.5%. Next is O/U 3.5 at 81%. $164K has traded across 42 outcomes on Polymarket and Kalshi. The market is expected to resolve by Nov 21, 2026.

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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