Historical clue formulations

• Beaten via a referee's decision, for short — 2022-04-07
• Beat in a boxing match, in a way — 2020-10-18
• Eliminated by a ref's decision — 2017-08-20
• Walloped to win the bout, in brief — 2016-09-20
• Having thrown in the towel, maybe — 2015-05-23
• Ousted from the ring, for short — 2012-01-15
• Eliminated from a boxing match, in a way — 2010-11-18