Historical clue formulations

• Stake — 2026-03-31
• Amount at stake — 2024-03-13
• Speculate — 2020-06-04
• Bet — 2019-06-11
• Bucks on a horse, e.g. — 2017-03-03
• "Friendly" action — 2011-01-25
• Transaction at a racetrack — 2010-06-07
• $2 on the gray mare, e.g. — 2009-08-11
• It might be placed at a window — 2007-08-08
• Something often laid at a window — 2007-06-02
• Two chips, perhaps — 2003-05-29
• Stake — 2000-06-14
• It's made at fights — 1999-03-10
• Vegas transaction — 1997-08-20
• Reno transaction — 1996-02-18
• Hazard — 1994-08-27