I couldn’t verify a player count for “lifeguard whistle” in Roblox Rivals from the available public results, so I can’t give a reliable number. The closest official-looking result I found only confirms that Roblox Rivals supports up to 10 people in one match via 5v5, not how many players have a specific item.

What I found

  • Roblox Rivals is described as a 5v5 game with up to 10 players in one match.
  • I did not find a source that tracks how many people own or use a “lifeguard whistle” item in Roblox Rivals.

Likely meaning

  • If you mean how many players can be in a lobby with the whistle equipped , the answer would still be up to 10 in a match, based on the game’s 5v5 setup.
  • If you mean how many players own the whistle , that information does not appear to be publicly listed in the results I found.

Interpretation| Answer
---|---
Players in one match with the item| Up to 10 1
Total owners of the item| Not publicly verified 1

SORRY, FAILED