C# Online Compiler | .NET Fiddle

using System;  
using System.Threading;  
public class MyThread  
{  
    public static void Thread1()  
    {  
        for (int i = 0; i < 10; i++)  
        {  
            Console.WriteLine(i);  
        }  
    }  
}  
public class ThreadExample  
{  
    public static void Main()  
    {  
        Thread t1 = new Thread(new ThreadStart(MyThread.Thread1));  
        Thread t2 = new Thread(new ThreadStart(MyThread.Thread1));  
        t1.Start();  
        t2.Start();  
    }  
}

 
using System;  
using System.Threading;  
public class MyThread  
{  
    public static void Thread1()  
    {  
        for (int i = 0; i < 10; i++)  
        {  
            Console.WriteLine(i);  
        }  
    }  
}  
public class ThreadExample  
{  
    public static void Main()  
    {  
        Thread t1 = new Thread(new ThreadStart(MyThread.Thread1));  
        Thread t2 = new Thread(new ThreadStart(MyThread.Thread1));  
        t1.Start();  
        t2.Start();  
    }  
}  

Cached Result

Environment version: .NET 9.0.0 (9.0.0)
Newtonsoft.Json version: Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed

Re-serialized System.Collections.Generic.List`1[LeagueEntity]:
[
  {
    "league_id": 1,
    "league_name": "my name"
  }
]