Sports

Trade: Chiba Jets vs. Altiri Chiba

100% YES 0% NO

Opened · Settles

Resolution criteria on PolyGram: In the upcoming Japan B League game, scheduled for May 2 at 1:05AM ET: If the Chiba Jets win, the market will resolve to "Chiba Jets". If the Altiri Chiba win, the market will resolve to "Altiri Chiba". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. The result will be determined based on the final score including any overtime periods.

PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.

Liquidity
—
Total Volume
$727
24h Volume
—
Open Interest
$525
Trade this market on PolyGram →

Market outcomes

Chiba Jets vs. Altiri Chiba 100% YES0% NO

Market context

The Chiba Jets face Altiri Chiba in a Japan B League matchup scheduled for 2 May at 1:05AM ET. The current order book on Polymarket reflects a 100% implied probability for the Jets, indicating traders are pricing this as a near-certain outcome. Settlement occurs by 9 May 2026, with the market resolving to either team based on final score including overtime, or 50-50 if the fixture is cancelled without rescheduling.

The Jets and Altiri represent the two professional basketball franchises based in Chiba Prefecture, creating a local rivalry within Japan's top-tier B League. Historical matchups between these sides provide context for assessing whether the current probability reflects genuine competitive disparity or market inefficiency. The Jets have typically fielded stronger rosters and finished higher in league standings, though Altiri has shown capacity to compete in individual fixtures. The 100% implied probability suggests the market is pricing the Jets as overwhelming favourites, a positioning that warrants scrutiny against recent head-to-head records and current season performance metrics.

Traders should monitor roster availability and injury reports in the days preceding the fixture, as absences of key players could shift competitive balance. The Japan B League schedule occasionally experiences postponements due to weather or logistical factors, which would extend the settlement window. Recent league communications and team announcements regarding player status should be tracked through official B League channels and team websites. The timing of the fixture—early morning ET—may also affect liquidity and order book depth on Polymarket as trading activity concentrates during Asian market hours.

Wikipedia Context

  • Chiba Jets
    Chiba Jets

    The Chiba Jets Funabashi are a Japanese professional basketball team based in Funabashi, Chiba. They compete in the Eastern Conference of the First Division of the Japanese B.League. Owned by Mixi, they have also won five Emperor's Cups.

  • Tetsuya Chiba
    Tetsuya Chiba

    Tetsuya Chiba is a Japanese manga artist. Considered a major figure in the history of manga, many of his early titles are still in print due to continued popularity.

  • Chia Pet
    Chia Pet

    Chia Pets are American styled terracotta figurines used to sprout chia, where the chia sprouts grow within a couple of weeks to resemble the animal's fur or hair. Moistened chia seeds are applied to a grooved terracotta figurine.

  • Teisuke Chiba

    Teisuke Chiba was a Japanese amateur photographer of rural life around the area where he lived in Akita, Japan.

Resolution source

This market settles from the official outcome published at https://www.bleague.jp/en/. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.

How to trade this market step by step

The mechanics for trading "Chiba Jets vs. Altiri Chiba" are the same as any other PolyGram sporting event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.

  1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
  2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
  3. Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
  4. Size your position. If you stake 100 USDC at 100% YES, you'll receive shares that pay $100 if YES resolves true — a 0% gross return. If NO resolves, your shares are worth $0.
  5. Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
  6. Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.

How active is this market?

$727 in lifetime turnover and $0 of resting liquidity puts this market in the below the median by volume for sports contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.

The market has been open for under a month — fresh enough that information asymmetry remains a real factor.

Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.

Key terms

YES / NO share
A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.
CLOB
Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.
Liquidity
USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.
UMA optimistic oracle
The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.
Slippage
The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.
Conditional token
ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.

See the full prediction-market glossary →

Frequently asked questions

What is the current probability for "Chiba Jets vs. Altiri Chiba"?

As of today, traders on Polymarket price this outcome at 100%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.

How does this market resolve?

Resolution is sourced from https://www.bleague.jp/en/. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.

When does this market close?

This prediction market is scheduled to close on 9 May 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.

How can I trade on "Chiba Jets vs. Altiri Chiba"?

To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.

What happens when the market resolves?

When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.

Risk and regulatory note

Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.

Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.

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