In French horse racing (Turf), selecting "2 bases" refers to choosing two horses that you believe are most likely to finish in the top three. These are typically used for: Betting on both to finish in the top two.
The main racing event for this date took place at (Meeting 4), as the Vincennes Quinté+ (the Prix de la Tremblade ) actually occurred the following day, December 21.
This 1600m flat race featured a competitive field. The official top finishers were:
Betting on both to finish anywhere in the top four.
PMU Résultat Quinté de la course PRIX ZETURF ... - Canalturf