diff --git a/BritishHorseRacingApi.Tests/ApiClientTests.cs b/BritishHorseRacingApi.Tests/ApiClientTests.cs
index 5c3c44d..f983149 100644
--- a/BritishHorseRacingApi.Tests/ApiClientTests.cs
+++ b/BritishHorseRacingApi.Tests/ApiClientTests.cs
@@ -4,11 +4,14 @@ using System.Threading.Tasks;
 using System.Linq;
 using Xunit;
 using SuccessfulCodeTools.LowLevelHttpClient;
+using Newtonsoft.Json;
 
 namespace BritishHorseRacingApi.Tests
 {
     public class ApiClientTests
     {
+        public static string _cookie = "D_SID=188.172.158.138:JT/OEx87nl5ScspTQk38UsDfuIz94DbCf5CYsIC7WpU; __utmz=36595059.1583064856.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); D_IID=A18DB74E-9ABD-33E1-BF94-96209AF6178E; D_UID=9CDC96FD-4EFE-308E-BC28-2F105AC0B01B; __utmc=36595059; bha-ie-test=true; D_ZID=3F37C446-48FB-3F85-B8D2-66FC90A17473; D_ZUID=27B27203-7708-3F5E-8C01-86A8BF3A21DD; D_HID=BC00CAA4-06EE-39E0-8579-A00DCFA20171; catAccCookies=1; __utma=36595059.34208775.1583064856.1586764803.1586767732.29; bha_token=%7B%22token%22%3A%22MDI2ZDNjOWQ1YzlkNjg3NzY0NThhMzgwNTlmOTAyMGE%3D%22%2C%22timestamp%22%3A1586771830669%7D; __utmt=1; __utmb=36595059.21.10.1586767732";
+
         [Fact]
         public async Task GetToken()
         {
@@ -84,14 +87,16 @@ namespace BritishHorseRacingApi.Tests
             var results = await client.GetAllRacesForDay(2019, 2, 28);
             Assert.True(results.Count > 0);
         }
-
-        [Fact]
-        public async Task GetRaceRunners()
+        
+        [Theory]
+        [InlineData(2020, 31967, 0, 4)]
+        [InlineData(2019, 16974, 0, 18)]
+        public async Task GetRaceRunners(int year, int raceId, int divisionSequence, int expectedRunnerCount)
         {
-            var client = new ApiClient();
+            var client = new ApiClient(cookie: _cookie);
             var token = await client.GetNewToken();
-            var results = await client.GetRaceRunners(2020, 31967, 0);
-            Assert.Equal(4, results.Data.Length);
+            var results = await client.GetRaceRunners(year, raceId, divisionSequence);
+            Assert.Equal(expectedRunnerCount, results.Data.Length);
         }
 
         [Fact]
diff --git a/BritishHorseRacingApi/Models/Runner.cs b/BritishHorseRacingApi/Models/Runner.cs
index 4e459d4..b102935 100644
--- a/BritishHorseRacingApi/Models/Runner.cs
+++ b/BritishHorseRacingApi/Models/Runner.cs
@@ -66,7 +66,7 @@ namespace BritishHorseRacingApi.Models
         public Status Status { get; set; }
 
         [JsonProperty("jockeyId")]
-        public int JockeyId { get; set; }
+        public int? JockeyId { get; set; }
 
         [JsonProperty("jockeyName")]
         public string JockeyName { get; set; }