JSON parsing child elements

Jun 17, 2014 at 11:15 AM
{
   "3659639":{
      "competitors":{
         "19376625":{
            "Name":"Oscar The Myth",
            "Jockey":"I Popham",
            "NSWPlace":3.8,
            "DetailedPricing":{
               "winTotePlus":false,
               "placeTotePlus":false,
               "fixedEachWay":true,
               "placePrices":{
                  "11":5.1,
                  "12":5.1,
                  "6":6,
                  "7":16.5,
                  "17":16.5
               },
               "numPlacings":3,
               "numWinners":1
            },
            "Scratched":"no",
            "RisaSilkID":null
         },
         "19376628":{
            "Name":"Rogue Dancer",
            "Jockey":"T Whelan",
            "NSWPlace":2,
            "DetailedPricing":{
               "winTotePlus":false,
               "placeTotePlus":false,
               "fixedEachWay":true,
               "placePrices":{
                  "12":5.1,
                  "6":6,
                  "17":16.5
               },
               "numPlacings":3,
               "numWinners":1
            },
            "Scratched":"no",
            "RisaSilkID":null
         },
         "19376631":{
            "Name":"Celtic Fella",
            "Jockey":"P Moloney",
            "NSWPlace":26.4,
            "DetailedPricing":{
               "winTotePlus":false,
               "placeTotePlus":false,
               "fixedEachWay":true,
               "placePrices":{
                  "11":5.1,
                  "4":6,
                  "1":7.1,
                  "17":16.5
               },
               "numPlacings":3,
               "numWinners":1
            },
            "Scratched":"no",
            "RisaSilkID":null
         }
      }
   }
}

I want to get Name, Jockey and placePrices. i am trying this code
var obj = JObject.Parse(json);
 var query =
from ev in obj.Properties()
select new
{
    Name= (string)ev.Value["Name"]


};
But i am getting null value. Can anyone tell me what i am doing wrong?