The specific person for "he" was not mentioned, but here are notable silver medal wins from recent Olympic Games in 2024:

• Adam Burgess won a silver medal in the men's individual canoe slalom at the Paris 2024 Olympic Games on July 28, 2024.
• Tom Daley won a silver medal in the men's synchronized 10m platform diving event also at the Paris 2024 Olympics.
• Adam Peaty won a silver medal in the men's 100m breaststroke at the Paris 2024 Olympics on July 28, 2024.

If there is a particular individual meant by "he," please specify, and the exact date and event of the silver medal win can be provided accurately. Additionally, historically, Luz Long won a silver medal in long jump at the 1936 Summer Olympics. Please clarify which "he" is being referred to for a more precise answer. For now, these examples include dates and events of recent significant silver medal wins.