diff --git a/src/ORM/client/client.service.ts b/src/ORM/client/client.service.ts
index bff0fb1..975cfdd 100644
--- a/src/ORM/client/client.service.ts
+++ b/src/ORM/client/client.service.ts
@@ -45,6 +45,14 @@ export class ClientService {
         return await this.clientRepository.count();
     }
 
+    public async getBestDiff(address: string) {
+        const res = await this.clientRepository.createQueryBuilder('client')
+            .select('MAX(client.bestDifficulty)', 'bestDifficulty')
+            .where('client.address = :address', { address })
+            .withDeleted()
+            .getRawOne();
+        return res?.bestDifficulty;
+    }
     public async getByAddress(address: string): Promise<ClientEntity[]> {
         return await this.clientRepository.find({
             where: {
diff --git a/src/controllers/client/client.controller.ts b/src/controllers/client/client.controller.ts
index 9b64132..5ba5830 100644
--- a/src/controllers/client/client.controller.ts
+++ b/src/controllers/client/client.controller.ts
@@ -20,7 +20,10 @@ export class ClientController {
 
         const chartData = await this.clientStatisticsService.getChartDataForAddress(address);
 
+        const bestDifficulty = await this.clientService.getBestDiff(address);
+
         return {
+            bestDifficulty,
             workersCount: workers.length,
             workers: await Promise.all(
                 workers.map(async (worker) => {