diff --git a/TOOHUCardAPI/Controllers/PlayerDataController.cs b/TOOHUCardAPI/Controllers/PlayerDataController.cs
index 9b2bac4..ac60f30 100644
--- a/TOOHUCardAPI/Controllers/PlayerDataController.cs
+++ b/TOOHUCardAPI/Controllers/PlayerDataController.cs
@@ -114,7 +114,11 @@ namespace TOOHUCardAPI.Controllers
         private async Task<IActionResult> Get(string body)
         {
             PlayerDataGetRequestObject requestObject = JsonConvert.DeserializeObject<PlayerDataGetRequestObject>(body);
-            IEnumerable<User> users = await Task.WhenAll(requestObject.Ids.Values.Select(val => _userService.LoginUser(val)));
+            IEnumerable<User> users = new List<User>();
+            foreach (var val in requestObject.Ids.Values)
+            {
+                users = users.Append(await _userService.LoginUser(val)); // threading errors
+            }
             IEnumerable<long> queriedUserSteamIds = requestObject.Ids.Select(i => i.Value);
             IEnumerable<PlayerDataGetResponseObjectPlayer> responsePlayers = users
                 .Where(user => queriedUserSteamIds.Contains(user.SteamId))
diff --git a/TOOHUCardAPI/DTO/PlayerData/PlayerDataGetResponseObject.cs b/TOOHUCardAPI/DTO/PlayerData/PlayerDataGetResponseObject.cs
index 072cd0b..4b6a02c 100644
--- a/TOOHUCardAPI/DTO/PlayerData/PlayerDataGetResponseObject.cs
+++ b/TOOHUCardAPI/DTO/PlayerData/PlayerDataGetResponseObject.cs
@@ -37,6 +37,7 @@ namespace TOOHUCardAPI.DTO.PlayerData
         [JsonProperty("power_max_total")] public int PowerMaxTotal { get; set; }
         [JsonProperty("pet_model")] public string PetModel { get; set; }
         [JsonProperty("pet_effect")] public string PetEffect { get; set; }
+        public Dictionary<string, string> EncodedCardGroups { get; set; }
 
         public Dictionary<string, object> ToDynamicProperties()
         {
@@ -52,6 +53,9 @@ namespace TOOHUCardAPI.DTO.PlayerData
             PlayerDataGetResponseObjectPlayer responseObject = mapper.Map<PlayerDataGetResponseObjectPlayer>(user);
             responseObject.IsFirstWin = user.LastFirstWin.AddDays(1) < DateTime.Now ? 1 : 0;
             responseObject.LevelList = user.CardLevels.EncodeLevelList();
+            responseObject.EncodedCardGroups = user.EncodedCardGroups
+                .Select(ecg => KeyValuePair.Create(ecg.GroupKey, ecg.EncodedString))
+                .ToDictionary(kv => kv.Key, kv => kv.Value);
             return responseObject;
         }
     }
diff --git a/TOOHUCardAPI/DTO/RankData/RankCardDTO.cs b/TOOHUCardAPI/DTO/RankData/RankCardDTO.cs
new file mode 100644
index 0000000..92e7e03
--- /dev/null
+++ b/TOOHUCardAPI/DTO/RankData/RankCardDTO.cs
@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+
+namespace TOOHUCardAPI.DTO.RankData
+{
+    public class RankCardDTO
+    {
+        public string ItemName { get; set; }
+        public int Star { get; set; }
+        public long Damage { get; set; }
+        public int Power { get; set; }
+        public int Attack { get; set; }
+        public Dictionary<int, string> Equip { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/TOOHUCardAPI/DTO/RankData/RankDataGetResponse.cs b/TOOHUCardAPI/DTO/RankData/RankDataGetResponse.cs
index 303ecee..3012faa 100644
--- a/TOOHUCardAPI/DTO/RankData/RankDataGetResponse.cs
+++ b/TOOHUCardAPI/DTO/RankData/RankDataGetResponse.cs
@@ -1,7 +1,18 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
 namespace TOOHUCardAPI.DTO.RankData
 {
     public class RankDataGetResponse : OkResponse
     {
-        
+        [JsonProperty("bo")]
+        public RankDataGetResponseBody Body { get; set; }
+    }
+
+    public class RankDataGetResponseBody
+    {
+        [JsonProperty()]
+        public Dictionary<int, object> FFAEntries { get; set; }
+        public Dictionary<int, object> TeamEntries { get; set; }
     }
 }
\ No newline at end of file
diff --git a/TOOHUCardAPI/DTO/RankData/RankEntryDTO.cs b/TOOHUCardAPI/DTO/RankData/RankEntryDTO.cs
new file mode 100644
index 0000000..c34ed72
--- /dev/null
+++ b/TOOHUCardAPI/DTO/RankData/RankEntryDTO.cs
@@ -0,0 +1,17 @@
+using System.Collections.Generic;
+
+namespace TOOHUCardAPI.DTO.RankData
+{
+    public class RankEntryDTO
+    {
+        public string RankType { get; set; }
+        public long SteamId { get; set; }
+        public long UserId { get; set; }
+        public string Username { get; set; }
+        public string Version { get; set; }
+        public int Wave { get; set; }
+        public long Damage { get; set; }
+        // need cards here
+        public List<RankCardDTO> Cards { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/TOOHUCardAPI/Data/JsonConverters/PlayerDataGetResponseObjectPlayerConverter.cs b/TOOHUCardAPI/Data/JsonConverters/PlayerDataGetResponseObjectPlayerConverter.cs
new file mode 100644
index 0000000..06ead5b
--- /dev/null
+++ b/TOOHUCardAPI/Data/JsonConverters/PlayerDataGetResponseObjectPlayerConverter.cs
@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using TOOHUCardAPI.DTO.PlayerData;
+
+namespace TOOHUCardAPI.Data.JsonConverters
+{
+    public class PlayerDataGetResponseObjectPlayerConverter : JsonConverter<PlayerDataGetResponseObjectPlayer>
+    {
+        public override void WriteJson(JsonWriter writer, PlayerDataGetResponseObjectPlayer value, JsonSerializer serializer)
+        {
+            var encodedCardGroups = value.EncodedCardGroups;
+            value.EncodedCardGroups = null;
+            JObject jo = JObject.FromObject(value);
+            foreach (var (key, s) in encodedCardGroups)
+            {
+                jo[key] = s;
+            }
+            jo.WriteTo(writer);
+        }
+
+        public override PlayerDataGetResponseObjectPlayer ReadJson(JsonReader reader, Type objectType,
+            PlayerDataGetResponseObjectPlayer existingValue, bool hasExistingValue, JsonSerializer serializer)
+        {
+            JObject jo = JObject.Load(reader);
+            PlayerDataGetResponseObjectPlayer playerObject = existingValue ?? new PlayerDataGetResponseObjectPlayer();
+            serializer.Populate(reader, playerObject);
+            playerObject.EncodedCardGroups = jo.Properties().Where(prop => prop.Name.Contains("cardgroup"))
+                .Select(prop => KeyValuePair.Create(prop.Name, prop.Value.ToObject<string>()))
+                .ToDictionary(kv => kv.Key, kv => kv.Value);
+            return playerObject;
+        }
+    }
+}
\ No newline at end of file
diff --git a/TOOHUCardAPI/Data/JsonConverters/RankEntryDTOConverter.cs b/TOOHUCardAPI/Data/JsonConverters/RankEntryDTOConverter.cs
new file mode 100644
index 0000000..59bdba2
--- /dev/null
+++ b/TOOHUCardAPI/Data/JsonConverters/RankEntryDTOConverter.cs
@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using TOOHUCardAPI.DTO.RankData;
+
+namespace TOOHUCardAPI.Data.JsonConverters
+{
+    public class RankEntryDTOConverter : JsonConverter<RankEntryDTO>
+    {
+        public override void WriteJson(JsonWriter writer, RankEntryDTO value, JsonSerializer serializer)
+        {
+            List<RankCardDTO> cards = value.Cards;
+            value.Cards = null;
+            JObject jo = JObject.FromObject(value);
+            for (int i = 0; i < cards.Count; i++)
+            {
+                jo[$"card{i}"] = JObject.FromObject(cards[i]);
+
+            }
+            jo.WriteTo(writer);
+        }
+
+        public override RankEntryDTO ReadJson(JsonReader reader, Type objectType, RankEntryDTO existingValue, bool hasExistingValue,
+            JsonSerializer serializer)
+        {
+            JObject jo = JObject.Load(reader);
+            RankEntryDTO dto = new RankEntryDTO();
+            serializer.Populate(reader, dto);
+            dto.Cards = jo.Properties().Where(prop => prop.Name.Contains("card"))
+                .Select(i => i.Value.ToObject<RankCardDTO>()).ToList();
+            return dto;
+        }
+    }
+}
\ No newline at end of file
diff --git a/TOOHUCardAPI/Startup.cs b/TOOHUCardAPI/Startup.cs
index 4bb3595..fec629b 100644
--- a/TOOHUCardAPI/Startup.cs
+++ b/TOOHUCardAPI/Startup.cs
@@ -12,8 +12,10 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.OpenApi.Models;
+using Newtonsoft.Json;
 using NLog.Extensions.Logging;
 using TOOHUCardAPI.Data;
+using TOOHUCardAPI.Data.JsonConverters;
 using TOOHUCardAPI.Data.Repositories;
 using TOOHUCardAPI.Data.Services;
 
@@ -32,7 +34,14 @@ namespace TOOHUCardAPI
         // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
-            services.AddControllers().AddNewtonsoftJson();
+            services.AddControllers().AddNewtonsoftJson(opt =>
+            {
+                opt.SerializerSettings.Converters = new List<JsonConverter>
+                {
+                    new RankEntryDTOConverter(),
+                    new PlayerDataGetResponseObjectPlayerConverter()
+                };
+            });
             services.AddDbContext<AppDbContext>(opt =>
             {
                 opt.UseNpgsql(Configuration.GetConnectionString("postgres"));