".500" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": ".500 (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Sports",
          "orig": "en:Sports",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              41,
              45
            ]
          ],
          "text": "The Chicago Cubs finished ten games over .500, but still didn't make the playoffs.",
          "type": "example"
        }
      ],
      "glosses": [
        "An equal number of wins and losses."
      ],
      "id": "en-.500-en-noun-wXju~4kE",
      "links": [
        [
          "sports",
          "sports"
        ]
      ],
      "raw_glosses": [
        "(sports) An equal number of wins and losses."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": ".500"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": ".500 (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms spelled with .",
        "English terms spelled with numbers",
        "English terms with usage examples",
        "English uncountable nouns",
        "English words without vowels",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Sports"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              41,
              45
            ]
          ],
          "text": "The Chicago Cubs finished ten games over .500, but still didn't make the playoffs.",
          "type": "example"
        }
      ],
      "glosses": [
        "An equal number of wins and losses."
      ],
      "links": [
        [
          "sports",
          "sports"
        ]
      ],
      "raw_glosses": [
        "(sports) An equal number of wins and losses."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "hobbies",
        "lifestyle",
        "sports"
      ]
    }
  ],
  "word": ".500"
}