Sandbagging

We've seen such games as Sandbagging (managers knowingly lowball sales forecasts as a negotiating ploy) spread with surprising speed, because when the game appears to “work” for one manager, others follow suit[…]

Source: wiktionary

Sandbagging takes place when workers do not notify the manager as soon as they complete their assigned tasks. Sandbagging can take place especially when there is a perception that reporting an early task completion will result in a corresponding reduction in the time allowed for that task the next time it has to be performed.

Source: wiktionary

FIDE has slapped a former Chinese chess prodigy, Li Haoyu, with a ban for what the global governing body of chess termed “sandbagging at chess competitions” in a report published on their website ….

Source: wiktionary

“Sandbagging” in the M&A legal context refers to the right of the buyer to seek indemnification for a breach of a seller’s reps and warranties even though the buyer had knowledge of the misrepresentation on which it is basing its claim prior to the closing date. U.S. case law on sandbagging varies widely across jurisdictions and is subject to change over time.

Source: wiktionary