diff --git a/.gitignore b/.gitignore
index 6e05153..65f5071 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /.quantiles
 node_modules
 .fastembed_cache
+/python-examples/.swebench-pro-results/
diff --git a/python-examples/README.md b/python-examples/README.md
index cfd8aa5..3818c8a 100644
--- a/python-examples/README.md
+++ b/python-examples/README.md
@@ -8,3 +8,30 @@ The accompanying [`quantiles.toml`](./quantiles.toml) makes these examples easil
 | --- | --- | --- | --- |
 | PubMedQA | `qt run custom_pubmedqa` | [`src/pubmedqa.py`](./src/pubmedqa.py) | Implements the [PubMedQA](https://pubmedqa.github.io/) biomedical question-answering benchmark as a custom evaluation. A registry-backed definition is also available with `qt run pubmedqa`. |
 | Customer-support prompt evaluation | `qt run custom_prompt_eval` | [`src/prompt_eval.py`](./src/prompt_eval.py) | Demonstrates a deterministic customer-support classification evaluation with recorded steps and metrics. |
+| SWE-Bench Pro | `qt run custom_swebench_pro` | [`src/swebench_pro.py`](./src/swebench_pro.py) | Grades existing patch predictions with Scale's official SWE-Bench Pro evaluator. |
+
+## SWE-Bench Pro
+
+The SWE-Bench Pro example is a thin adapter around Scale's official evaluator. It grades existing patch predictions; it does not generate patches or bundle the upstream evaluation harness.
+
+Before running it:
+
+1. Clone [`scaleapi/SWE-bench_Pro-os`](https://github.com/scaleapi/SWE-bench_Pro-os) and install its requirements in a dedicated Python environment.
+2. Install and start Docker. Local Docker evaluation is currently marked beta by the upstream project.
+3. Prepare the raw sample CSV or JSONL and a predictions JSON file using the formats documented by the upstream project.
+
+From this directory, run a small evaluation with explicit local paths:
+
+```bash
+qt run custom_swebench_pro --input '{
+  "repo_path": "/path/to/SWE-bench_Pro-os",
+  "evaluator_python": "/path/to/SWE-bench_Pro-os/.venv/bin/python",
+  "raw_sample_path": "/path/to/swe_bench_pro_full.csv",
+  "patch_path": "/path/to/predictions.json",
+  "output_dir": ".swebench-pro-results",
+  "num_workers": 1,
+  "use_local_docker": true
+}'
+```
+
+The example records the official evaluator invocation as a durable Quantiles step and emits `resolution_rate`, `resolved_count`, and `total_count`. The evaluator may download Docker images and run untrusted benchmark code inside containers. Its output directory contains generated logs, patches, and test results and must not be committed.
diff --git a/python-examples/quantiles.toml b/python-examples/quantiles.toml
index 553c06e..195244a 100644
--- a/python-examples/quantiles.toml
+++ b/python-examples/quantiles.toml
@@ -8,3 +8,11 @@ input = { model_name = "openai:gpt-5.6", num_examples = 500 }
 [benchmarks.custom_prompt_eval]
 type = "custom_code"
 command = ["uv", "run", "src/prompt_eval.py"]
+
+# Grade existing patch predictions with Scale's official SWE-Bench Pro evaluator.
+# Clone and prepare https://github.com/scaleapi/SWE-bench_Pro-os first, then
+# override these paths with `qt run custom_swebench_pro --input '<json>'`.
+[benchmarks.custom_swebench_pro]
+type = "custom_code"
+command = ["uv", "run", "src/swebench_pro.py"]
+input = { repo_path = "../SWE-bench_Pro-os", evaluator_python = "../SWE-bench_Pro-os/.venv/bin/python", raw_sample_path = "../SWE-bench_Pro-os/swe_bench_pro_full.csv", patch_path = "../SWE-bench_Pro-os/predictions.json", output_dir = ".swebench-pro-results", num_workers = 1, use_local_docker = true }
diff --git a/python-examples/src/swebench_pro.py b/python-examples/src/swebench_pro.py
new file mode 100644
index 0000000..6fb8ed4
--- /dev/null
+++ b/python-examples/src/swebench_pro.py
@@ -0,0 +1,165 @@
+"""Run the official SWE-Bench Pro patch evaluator as a Quantiles workflow."""
+
+import asyncio
+import json
+from collections.abc import Awaitable, Callable
+from pathlib import Path
+from typing import cast
+
+from pydantic import BaseModel, Field
+from quantiles import emit, entrypoint, step, workflow
+from quantiles.types import JsonValue
+from quantiles.workflow_context import WorkflowContext
+
+
+class SweBenchProInput(BaseModel):
+    """Inputs required by Scale's official SWE-Bench Pro evaluator."""
+
+    repo_path: str
+    evaluator_python: str
+    raw_sample_path: str
+    patch_path: str
+    output_dir: str = ".swebench-pro-results"
+    dockerhub_username: str = "jefzda"
+    num_workers: int = Field(default=1, ge=1)
+    use_local_docker: bool = True
+    docker_platform: str | None = None
+    block_network: bool = False
+    redo: bool = False
+
+
+def _resolve_path(value: str, base_dir: Path) -> Path:
+    path = Path(value).expanduser()
+    return path.resolve() if path.is_absolute() else (base_dir / path).resolve()
+
+
+def _require_file(path: Path, description: str) -> None:
+    if not path.is_file():
+        raise ValueError(f"{description} does not exist: {path}")
+
+
+def _summarize_results(results_path: Path) -> dict[str, JsonValue]:
+    raw_results = json.loads(results_path.read_text())
+    if not isinstance(raw_results, dict) or not all(
+        isinstance(instance_id, str) and isinstance(resolved, bool)
+        for instance_id, resolved in raw_results.items()
+    ):
+        raise ValueError(f"Unexpected SWE-Bench Pro results in {results_path}")
+
+    results = cast(dict[str, bool], raw_results)
+    total_count = len(results)
+    if total_count == 0:
+        raise ValueError("SWE-Bench Pro evaluator returned no results")
+
+    resolved_count = sum(results.values())
+    return cast(
+        dict[str, JsonValue],
+        {
+            "resolution_rate": resolved_count / total_count,
+            "resolved_count": resolved_count,
+            "total_count": total_count,
+            "results_path": str(results_path),
+            "results": results,
+        },
+    )
+
+
+async def _run_official_evaluator(config: SweBenchProInput) -> JsonValue:
+    caller_dir = Path.cwd()
+    repo_path = _resolve_path(config.repo_path, caller_dir)
+    evaluator_python = _resolve_path(config.evaluator_python, caller_dir)
+    evaluator_path = repo_path / "swe_bench_pro_eval.py"
+    raw_sample_path = _resolve_path(config.raw_sample_path, caller_dir)
+    patch_path = _resolve_path(config.patch_path, caller_dir)
+    output_dir = _resolve_path(config.output_dir, caller_dir)
+    scripts_dir = repo_path / "run_scripts"
+
+    _require_file(evaluator_path, "Official SWE-Bench Pro evaluator")
+    _require_file(evaluator_python, "SWE-Bench Pro Python interpreter")
+    _require_file(raw_sample_path, "Raw SWE-Bench Pro sample file")
+    _require_file(patch_path, "SWE-Bench Pro predictions file")
+    if not scripts_dir.is_dir():
+        raise ValueError(
+            f"SWE-Bench Pro run scripts directory does not exist: {scripts_dir}"
+        )
+
+    output_dir.mkdir(parents=True, exist_ok=True)
+    command = [
+        str(evaluator_python),
+        str(evaluator_path),
+        f"--raw_sample_path={raw_sample_path}",
+        f"--patch_path={patch_path}",
+        f"--output_dir={output_dir}",
+        f"--scripts_dir={scripts_dir}",
+        f"--num_workers={config.num_workers}",
+        f"--dockerhub_username={config.dockerhub_username}",
+    ]
+    if config.use_local_docker:
+        command.append("--use_local_docker")
+    if config.docker_platform is not None:
+        command.append(f"--docker_platform={config.docker_platform}")
+    if config.block_network:
+        command.append("--block_network")
+    if config.redo:
+        command.append("--redo")
+
+    process = await asyncio.create_subprocess_exec(
+        *command,
+        cwd=repo_path,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE,
+    )
+    stdout, stderr = await process.communicate()
+    if process.returncode != 0:
+        stdout_tail = stdout.decode(errors="replace")[-2000:]
+        stderr_tail = stderr.decode(errors="replace")[-2000:]
+        raise RuntimeError(
+            "Official SWE-Bench Pro evaluator failed "
+            f"with exit code {process.returncode}.\n"
+            f"stdout tail:\n{stdout_tail}\n"
+            f"stderr tail:\n{stderr_tail}"
+        )
+
+    results_path = output_dir / "eval_results.json"
+    _require_file(results_path, "SWE-Bench Pro results file")
+    return cast(JsonValue, _summarize_results(results_path))
+
+
+async def handler(input_value: JsonValue, ctx: WorkflowContext) -> JsonValue:
+    config = SweBenchProInput.model_validate(input_value)
+    summary = await step(
+        ctx,
+        step_key="evaluate-patches",
+        input_value=cast(JsonValue, config.model_dump(mode="json")),
+        execute=cast(
+            Callable[[], Awaitable[JsonValue]],
+            lambda: _run_official_evaluator(config),
+        ),
+    )
+    if not isinstance(summary, dict):
+        raise ValueError("SWE-Bench Pro evaluation step returned an invalid summary")
+
+    resolution_rate = summary.get("resolution_rate")
+    resolved_count = summary.get("resolved_count")
+    total_count = summary.get("total_count")
+    if not isinstance(resolution_rate, int | float):
+        raise ValueError("SWE-Bench Pro summary is missing resolution_rate")
+    if not isinstance(resolved_count, int | float):
+        raise ValueError("SWE-Bench Pro summary is missing resolved_count")
+    if not isinstance(total_count, int | float):
+        raise ValueError("SWE-Bench Pro summary is missing total_count")
+    if any(
+        isinstance(value, bool)
+        for value in (resolution_rate, resolved_count, total_count)
+    ):
+        raise ValueError("SWE-Bench Pro evaluation summary is missing numeric metrics")
+
+    await emit(ctx, "resolution_rate", float(resolution_rate))
+    await emit(ctx, "resolved_count", float(resolved_count))
+    await emit(ctx, "total_count", float(total_count))
+    return cast(JsonValue, summary)
+
+
+if __name__ == "__main__":
+    swebench_pro = workflow("custom_swebench_pro", handler)
+    entrypoint(swebench_pro)