diff --git a/src/spikeinterface/benchmark/benchmark_base.py b/src/spikeinterface/benchmark/benchmark_base.py
index a6e4932cb1..d6a89dab22 100644
--- a/src/spikeinterface/benchmark/benchmark_base.py
+++ b/src/spikeinterface/benchmark/benchmark_base.py
@@ -292,6 +292,39 @@ def remove_cases(self, case_keys):
             self.remove_benchmark(key)
         (self.folder / "cases.pickle").write_bytes(pickle.dumps(self.cases))
 
+    def set_precomputed_results(self, precomputed_results, verbose=False):
+        """Set precomputed results for some cases. This is useful when you want to compute results outside of the benchmark and
+        then set them in the benchmark.
+
+        Parameters
+        ----------
+        precomputed_results : dict
+            A dict with the same keys as cases and values are dict with the results to set for each case.
+            The keys of the inner dict must be the same as the keys of the benchmark result.
+            'run_time' is a special key that will be set to 0.0 if not present in the precomputed results.
+        verbose : bool, default: False
+             Whether to print the keys of the precomputed results when setting them.
+        """
+
+        for key in precomputed_results.keys():
+            assert key in self.cases, f"Key {key} in precomputed_results is not in cases"
+            benchmark = self.create_benchmark(key)
+            if verbose:
+                print("### Set benchmark", key, "###")
+
+            for k, v in precomputed_results[key].items():
+                benchmark.result[k] = v
+            if "run_time" not in benchmark.result:
+                benchmark.result["run_time"] = 0.0
+                if verbose:
+                    print(f"Warning: 'run_time' is not in the precomputed results for key {key}, setting it to 0.0")
+
+            self.benchmarks[key] = benchmark
+            bench_folder = self.folder / "results" / self.key_to_str(key)
+            bench_folder.mkdir(exist_ok=True)
+            benchmark.save_run(bench_folder)
+            benchmark.save_main(bench_folder)
+
     def run(self, case_keys=None, keep=True, verbose=False, **job_kwargs):
         if case_keys is None:
             case_keys = list(self.cases.keys())