The Detroit Lions won the most recent matchup, so if you are asking about the current Cowboys–Lions game in early December 2025, the Lions are the team that came out on top.

What already happened

Reports from the December 2025 Thursday night game show the Lions beating the Cowboys in a high‑scoring contest, with final scores such as 44–30 in favor of Detroit being widely reported. That result means any bets or predictions made beforehand are now settled, and the outcome is that the Lions won that matchup.

If you meant future games

Sportsbooks and analysts currently list Detroit as a small favorite (around a field goal) over Dallas on neutral recent lines, implying roughly a low‑60% implied win probability for the Lions in this specific matchup scenario. That said, game outcomes are uncertain and depend on factors like injuries, turnovers, and in‑game decisions, so no projection can guarantee which team will win a future meeting.