TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 25, 2:14 AM EST
Polymarket
This market tracks whether SpaceX's 13th integrated Starship-SuperHeavy flight test will result in the Superheavy booster exploding. The aggregated consensus probability across Polymarket and Kalshi stands at 98.8%, with a secondary outcome probability of 0.1% for the booster catch success. Resolution will be determined by the Official SpaceX YouTube channel, with secondary corroboration from video feeds and written reports. Watch for the launch window ending on December 31, 2026, as this is the key date that will determine the market outcome.
This is a market on the outcome of the SpaceX Starship Flight Test 13.
Resolution is based on whether SpaceX successfully launches Starship flight test number 13 by specified dates across six separate markets (before July 1, July 17, August 1, August 17, September 1, and September 17, 2026). Each market independently resolves to Yes if the launch occurs before its respective deadline, as confirmed by FAA source agency data. If FAA data is delayed, resolution will be deferred until the data is updated in accordance with Kalshi Rule 6.3b.
Polymarket and Kalshi serve different trader bases, use distinct market mechanics, and may interpret launch-window definitions slightly differently. Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Kalshi's regulatory framework and user demographics can skew toward more conservative pricing, while Polymarket's global audience and AMM-style liquidity pools may react faster to breaking news. Subtle differences in outcome wording—such as launch-by dates or what counts as a successful test—also drive wedges between platforms. Arbitrage traders exploit these gaps, but persistent spreads often signal genuine disagreement about event timing or criteria interpretation.
Major catalysts include FAA launch license approvals or denials, SpaceX public statements on test-flight timing, and hardware readiness updates from the company. Regulatory delays, weather patterns affecting launch windows, or competing SpaceX priorities (Falcon 9 missions, Starlink deployment) can shift odds downward. Conversely, successful completion of pre-flight tests or accelerated pad construction could boost bullish sentiment. Real-time news flow, competitor activity, and geopolitical factors affecting space operations will all ripple through this market as traders reassess launch probability.