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United States · US District Court (D.N.J.) · US Court of Appeals (Third Circuit)VERIFIED

Phil Ivey — Borgata edge-sorting, US federal court

Phil Ivey; Cheung Yin Sun; Marina District Development Co. (Borgata Hotel Casino & Spa)

Incident type
Cheating / Advantage play
Conduct period
April–October 2012 (four playing sessions)
First-instance verdict
2016-10-21
Final adjudication
2020-07-02
Status
Settled
Last verified
2026-05-02

Summary

Professional gambler Phil Ivey and associate Cheung Yin Sun won approximately USD 9.6 million playing mini-baccarat at Borgata Hotel Casino & Spa in Atlantic City over four sessions in 2012. Borgata sued in 2014, alleging Ivey and Sun used an edge-sorting scheme to manipulate the odds by exploiting manufacturing asymmetries in Gemaco playing cards. In October 2016, the US District Court (D.N.J.) granted summary judgment to Borgata on breach-of-contract grounds, holding that the edge-sorting technique constituted 'marking cards' in violation of the New Jersey Casino Control Act, but dismissed Borgata's fraud and RICO claims. The court ordered Ivey and Sun to repay the winnings. Ivey appealed to the Third Circuit. In July 2020, the parties reached a confidential settlement, conditioned on the District Court vacating its judgment; the appeal was dismissed and the case concluded.

Timeline

VERIFIED

  1. Ivey plays 16 hours at Borgata, winning USD 2,416,000.

  2. Ivey returns for 56 hours, winning USD 1,597,400.

  3. Ivey returns for 17 hours at increased stakes, winning USD 4,787,700.

  4. Ivey returns for 18 hours, winning USD 824,900 (after being up almost USD 3.5 million).

  5. Borgata learns via media reports of the Crockfords matter and discovers Ivey made identical requests there.

  6. Borgata (Marina District Development Co., LLC) files suit against Ivey, Sun, and card manufacturer Gemaco, Inc. in US District Court, D.N.J. (Civil No. 14-2283).

  7. District Court denies motion to dismiss; case proceeds.

  8. District Court (Judge Hillman) grants summary judgment to Borgata on breach of contract, breach of implied contract, and implied covenant claims; dismisses fraud, RICO, and conspiracy claims.

  9. Third Circuit hears oral argument on appeal.

  10. Parties file joint notice of settlement in Third Circuit, conditioned on District Court vacatur of certain orders.

  11. District Court partially remands and vacates judgment; parties stipulate to dismissal of appeal; case concluded.

The operation

VERIFIED
  • Ivey made five requests of Borgata prior to play: (1) a private pit; (2) a Mandarin Chinese-speaking dealer; (3) Cheung Yin Sun seated with him; (4) one 8-deck shoe of purple Gemaco cards reused for each session; (5) an automatic card shuffling device.
  • Sun instructed the dealer in Mandarin to turn 'good' cards (6, 7, 8, 9) one way and 'bad' cards the other way under the pretence of superstition; the dealer complied without understanding the significance.
  • The automatic shuffler preserved card orientation, allowing Ivey to gain 'first card knowledge' by observing the leading edge of the first card in the shoe before it was dealt — shifting the house advantage of approximately 1.06% to an Ivey advantage of approximately 6.765%.
  • Ivey bet below maximum until edge-sorting was complete across multiple shoes, then 'flatlined' at maximum bet (up to USD 100,000 per hand) once the deck was sorted.
  • The District Court held that Ivey and Sun's conduct constituted 'marking cards' under N.J.S.A. 5:12-115(a)(2) and (b) because they caused cards to be manoeuvred to identify value to them alone, even without physical alteration; this breached the implied contractual obligation to play in compliance with the Casino Control Act.
  • Final settlement terms (July 2020) are confidential.

Primary sources

  1. Marina District Development Co., LLC v. Ivey, No. 14-2283 (NLH/AMD), Opinion (summary judgment) — US District Court, District of New Jersey, 2016-10-21 [link]
  2. Marina District Development Co., LLC v. Ivey, No. 14-2283 (NLH/AMD), Opinion (motion to dismiss) — US District Court, District of New Jersey, 2015-03-13 [link]
  3. Ivey, Borgata settle (case settlement reporting) — bj21.com, 2020-07-11 [link]
  4. Borgata casino lawsuit: Gambler cheated, won $9.6 million — Associated Press / 6abc, 2014-04-12 [link]

Analysis — surveillance & operations perspective

ANALYSIS

Editorial commentary by Surveillance Intelligence Asia. Opinion — clearly distinguished from the verified facts above.

The Borgata case is the surveillance-doctrine-defining edge-sorting matter in US case law. Three observations.

The five player-request pattern (private pit, Mandarin dealer, recurring Gemaco shoe, automatic shuffler, plus companion) is the pre-game tell that surveillance and table-games managers should now treat as a single configuration rather than as accommodation requests evaluated individually. Each request in isolation is reasonable; the combination is the advantage-play set-up. The lesson is configuration-pattern recognition, not single-request gatekeeping.

The District Court's holding that edge-sorting constituted 'marking cards' under N.J.S.A. 5:12-115 — without physical alteration to the cards — is the doctrinal anchor. Marking is now defined by effect, not by means. Any technique that causes the deck's value information to be communicated asymmetrically to one player is marking under New Jersey law, regardless of whether anything is physically done to the cards.

The settlement and vacatur in July 2020 mean the District Court opinion is not binding precedent in the conventional sense, but it remains the most-cited authority on edge-sorting in the US. Surveillance training programmes that cite the case should note the procedural posture.

Lessons (observation, not prescription)

  • Five reasonable requests in one configuration is the operational tell, not five individual decisions.
  • Marking is now defined by effect, not by means.
  • A vacated judgment can still set the operational standard — surveillance doctrine, not legal precedent.

Last verified: 2026-05-02. Errors? Email corrections@surveillanceasia.com. Corrections published within 72 hours per editorial process.