diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index b98ea1999..ae4001f5f 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -752,17 +752,7 @@ class Backtesting:
             min_backtest_date = datetime.now(tz=timezone.utc) - timedelta(weeks=4)
         return min_backtest_date
 
-    def start(self) -> None:
-        """
-        Run backtesting end-to-end
-        :return: None
-        """
-        data: Dict[str, Any] = {}
-
-        data, timerange = self.load_bt_data()
-        self.load_bt_data_detail()
-        logger.info("Dataload complete. Calculating indicators")
-
+    def load_prior_backtest(self):
         self.run_ids = {
             strategy.get_strategy_name(): get_strategy_run_id(strategy)
             for strategy in self.strategylist
@@ -775,6 +765,19 @@ class Backtesting:
             self.results = find_existing_backtest_stats(
                 self.config['user_data_dir'] / 'backtest_results', self.run_ids, min_backtest_date)
 
+    def start(self) -> None:
+        """
+        Run backtesting end-to-end
+        :return: None
+        """
+        data: Dict[str, Any] = {}
+
+        data, timerange = self.load_bt_data()
+        self.load_bt_data_detail()
+        logger.info("Dataload complete. Calculating indicators")
+
+        self.load_prior_backtest()
+
         for strat in self.strategylist:
             if self.results and strat.get_strategy_name() in self.results['strategy']:
                 # When previous result hash matches - reuse that result and skip backtesting.
diff --git a/freqtrade/rpc/api_server/api_backtest.py b/freqtrade/rpc/api_server/api_backtest.py
index 8101f54f5..97b7b7989 100644
--- a/freqtrade/rpc/api_server/api_backtest.py
+++ b/freqtrade/rpc/api_server/api_backtest.py
@@ -77,13 +77,21 @@ async def api_start_backtest(bt_settings: BacktestRequest, background_tasks: Bac
             lastconfig['enable_protections'] = btconfig.get('enable_protections')
             lastconfig['dry_run_wallet'] = btconfig.get('dry_run_wallet')
 
-            ApiServer._bt.abort = False
-            min_date, max_date = ApiServer._bt.backtest_one_strategy(
-                strat, ApiServer._bt_data, ApiServer._bt_timerange)
+            ApiServer._bt.results = {}
+            ApiServer._bt.load_prior_backtest()
 
-            ApiServer._bt.results = generate_backtest_stats(
-                ApiServer._bt_data, ApiServer._bt.all_results,
-                min_date=min_date, max_date=max_date)
+            ApiServer._bt.abort = False
+            if (ApiServer._bt.results and
+                    strat.get_strategy_name() in ApiServer._bt.results['strategy']):
+                # When previous result hash matches - reuse that result and skip backtesting.
+                logger.info(f'Reusing result of previous backtest for {strat.get_strategy_name()}')
+            else:
+                min_date, max_date = ApiServer._bt.backtest_one_strategy(
+                    strat, ApiServer._bt_data, ApiServer._bt_timerange)
+
+                ApiServer._bt.results = generate_backtest_stats(
+                    ApiServer._bt_data, ApiServer._bt.all_results,
+                    min_date=min_date, max_date=max_date)
 
             if btconfig.get('export', 'none') == 'trades':
                 store_backtest_stats(btconfig['exportfilename'], ApiServer._bt.results)