Naples: Daniel Altmaier vs Andrea Guerrieri

Prediction market · Polymarket

Overview

This market refers on the tennis match between Daniel Altmaier and Andrea Guerrieri in the Naples, scheduled for March 26 at 5:00AM ET. This market will resolve to 'Daniel Altmaier' if Daniel Altmaier advances against Andrea Guerrieri. This market will resolve to 'Andrea Guerrieri' if Andrea Guerrieri advances against Daniel Altmaier. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances. If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50. The primary resolution source will be official information from the ATP Tour. A consensus of credible reporting may also be used.

Ticker

atp-altmaie-guerrie-2026-03-26

Volume

287.0K

24h volume

287.0K

1w volume

287.0K

Open interest

145.7K

Liquidity

860.2K

Liquidity CLOB

860.2K

Start

Mar 24, 2026

End

Apr 2, 2026

Status

Active

Access

Restricted

Created

Mar 26, 2026

Resolution source

https://www.atptour.com/en/scores/current

Event ID

304629

Slug

atp-altmaie-guerrie-2026-03-26

Markets

9

Raw event data
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  "title": "Naples: Daniel Altmaier vs Andrea Guerrieri",
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      "question": "Altmaier vs. Guerrieri: Set 1 Games O/U 9.5",
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      "description": "This market refers to the tennis match between Daniel Altmaier and Andrea Guerrieri in the Naples, scheduled for March 26 2026.\nThis market will resolve to \"Over\" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to \"Under.\"\nAny first-set tiebreak counts as one (1) game toward the total.\nIf the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.\nResolution will be based on official Challenger results.",
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    "context_description": "Daniel Altmaier's higher ATP ranking (No. 107) and stronger clay-court pedigree anchor his 51.5% implied probability edge over Andrea Guerrieri (No. 370) in their Naples Challenger matchup, yet the Italian's home-crowd boost and recent qualifier momentum create tight trader sentiment. With no head-to-head history, Altmaier's consistent baseline game from recent European swing results contrasts Guerrieri's aggressive serving on the slow Naples clay, where upsets favor locals. Developments like pre-match warmups or early-set dominance could swing odds—Altmaier thriving in rallies tips toward 60%+, while Guerrieri steals a break early narrows to parity, reflecting clay's volatility and crowd influence.",
    "context_requires_regen": false,
    "context_updated_at": "2026-03-24T23:00:10.119Z",
    "league": "Naples"
  }
}