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diff --git a/src/catch2/benchmark/detail/catch_benchmark_stats.hpp b/src/catch2/benchmark/detail/catch_benchmark_stats.hpp
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+++ b/src/catch2/benchmark/detail/catch_benchmark_stats.hpp
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+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+#ifndef CATCH_BENCHMARK_STATS_HPP_INCLUDED
+#define CATCH_BENCHMARK_STATS_HPP_INCLUDED
+
+#include <catch2/benchmark/catch_estimate.hpp>
+#include <catch2/benchmark/catch_outlier_classification.hpp>
+// The fwd decl & default specialization needs to be seen by VS2017 before
+// BenchmarkStats itself, or VS2017 will report compilation error.
+#include <catch2/benchmark/detail/catch_benchmark_stats_fwd.hpp>
+
+#include <string>
+#include <vector>
+
+namespace Catch {
+
+    struct BenchmarkInfo {
+        std::string name;
+        double estimatedDuration;
+        int iterations;
+        unsigned int samples;
+        unsigned int resamples;
+        double clockResolution;
+        double clockCost;
+    };
+
+    // We need to keep template parameter for backwards compatibility,
+    // but we also do not want to use the template paraneter.
+    template <class Dummy>
+    struct BenchmarkStats {
+        BenchmarkInfo info;
+
+        std::vector<Benchmark::FDuration> samples;
+        Benchmark::Estimate<Benchmark::FDuration> mean;
+        Benchmark::Estimate<Benchmark::FDuration> standardDeviation;
+        Benchmark::OutlierClassification outliers;
+        double outlierVariance;
+    };
+
+
+} // end namespace Catch
+
+#endif // CATCH_BENCHMARK_STATS_HPP_INCLUDED