KalshiCheck availabilityKYC required2% feeVerified resolution dataFairly calibratedCurrent implied probability
Jannik Sinner 53.4%Leader of 12 outcomesVig-adjusted: raw venue quotes summed above 100% and were normalized.
Market quality
63 / 100
Medium quality24h Volume
$871.8
Liquidity
$32.9K
High liquiditySpread
1.0 pt
Tight spreadMarket data
Updated 11 minutes ago
Mar 2, 26, 3:00 PM UTCDec 31, 26, 7:00 PM UTC
Trends
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Related questions for context, not a comparison of equivalent contracts.
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PolymarketRules
If the named outcome is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.
Settles via:ATP
- For the purposes of this market, resolution will be based on the most recently published PIF ATP Rankings available at the time of resolution.
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Open markets
SportsKALSHIOklahoma vs Michigan
- Michigan+36.0pt70.3%
- Oklahoma-36.0pt29.7%
- Total Vol
- $9.5M
- 24h Vol
- $8.4M
KALSHIOklahoma vs Michigan: Spread
- Michigan wins by over 1.5 points+37.0pt68%
- Michigan wins by over 2.5 points+36.0pt67%
- Michigan wins by over 3.5 points+32.0pt58%
+23 more outcomes
POLYMARKETLoL: Team Vitality vs Movistar KOI (BO5) - LEC Playoffs
- Game 2 Winner+49.5pt100%
- Game 3 Winner+49.5pt100%
- O/U 3.5 Games+27.4pt100%
+61 more outcomes
KALSHIArizona St. vs Texas A&M
- Texas A&M+2.0pt88.1%
- Arizona St.-3.0pt11.9%
- Total Vol
- $2.9M
- 24h Vol
- $2.7M
KALSHIAmgen Irish Open Winner
- Shane Lowry+23.0pt69%
- Jacob Skov Olesen+19.0pt30%
- Daniel Brown10%
+97 more outcomes
- Total Vol
- $11.6M
ROBINHOOD (ROTHERA)Nfltotal 26 SEP 11 Sflar
- 17+3.0pt100%
- 20100%
- 23100%
+42 more outcomes
- Total Vol
Frequently asked questions
- What are the current odds for ATP #1 Ranked Men's Singles Player on Dec 31, 2026??
- Kalshi prices Jannik Sinner at 53% as of September 12, 2026.
- When does ATP #1 Ranked Men's Singles Player on Dec 31, 2026? resolve?
- ATP #1 Ranked Men's Singles Player on Dec 31, 2026? is scheduled to resolve on December 31, 2026.
- How is ATP #1 Ranked Men's Singles Player on Dec 31, 2026? settled?
- Kalshi settles this market as follows: If the named outcome is the #1 ranked on the PIF ATP singles rankings on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.