diff --git a/llama_stack/providers/inline/scoring/llm_as_judge/scoring_fn/fn_defs/llm_as_judge_405b_math_match.py b/llama_stack/providers/inline/scoring/llm_as_judge/scoring_fn/fn_defs/llm_as_judge_405b_math_match.py
new file mode 100644
index 000000000..34746b3e8
--- /dev/null
+++ b/llama_stack/providers/inline/scoring/llm_as_judge/scoring_fn/fn_defs/llm_as_judge_405b_math_match.py
@@ -0,0 +1,86 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+
+from llama_stack.apis.common.type_system import NumberType
+from llama_stack.apis.scoring_functions import (
+    AggregationFunctionType,
+    LLMAsJudgeScoringFnParams,
+    ScoringFn,
+)
+
+EQUALITY_TEMPLATE = r"""
+Look at the following two expressions (answers to a math problem) and judge whether they are equivalent. Only perform trivial simplifications
+
+Examples:
+
+    Expression 1: $2x+3$
+    Expression 2: $3+2x$
+
+Yes
+
+    Expression 1: 3/2
+    Expression 2: 1.5
+
+Yes
+
+    Expression 1: $x^2+2x+1$
+    Expression 2: $y^2+2y+1$
+
+No
+
+    Expression 1: $x^2+2x+1$
+    Expression 2: $(x+1)^2$
+
+Yes
+
+    Expression 1: 3245/5
+    Expression 2: 649
+
+No
+(these are actually equal, don't mark them equivalent if you need to do nontrivial simplifications)
+
+    Expression 1: 2/(-3)
+    Expression 2: -2/3
+
+Yes
+(trivial simplifications are allowed)
+
+    Expression 1: 72 degrees
+    Expression 2: 72
+
+Yes
+(give benefit of the doubt to units)
+
+    Expression 1: 64
+    Expression 2: 64 square feet
+
+Yes
+(give benefit of the doubt to units)
+
+---
+
+YOUR TASK
+
+
+Respond with only "Yes" or "No" (without quotes). Do not include a rationale.
+
+    Expression 1: %(expression1)s
+    Expression 2: %(expression2)s
+""".strip()
+
+
+llm_as_judge_405b_math_match = ScoringFn(
+    identifier="llm-as-judge::405b-math-match",
+    description="Llm As Judge Scoring Function for Math Related Benchmark https://github.com/openai/simple-evals/blob/main/math_eval.py)",
+    return_type=NumberType(),
+    provider_id="llm-as-judge",
+    provider_resource_id="llm-as-judge-405b-math-match",
+    params=LLMAsJudgeScoringFnParams(
+        judge_model="meta-llama/Llama-3.1-405B-Instruct",
+        prompt_template=EQUALITY_TEMPLATE,
+        aggregation_functions=[AggregationFunctionType.accuracy],
+    ),
+)
diff --git a/llama_stack/providers/inline/scoring/llm_as_judge/scoring_fn/llm_as_judge_math_match_fn.py b/llama_stack/providers/inline/scoring/llm_as_judge/scoring_fn/llm_as_judge_math_match_fn.py
new file mode 100644
index 000000000..67c0a543f
--- /dev/null
+++ b/llama_stack/providers/inline/scoring/llm_as_judge/scoring_fn/llm_as_judge_math_match_fn.py
@@ -0,0 +1,70 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+#
+# This source code is licensed under the terms described in the LICENSE file in
+# the root directory of this source tree.
+from typing import Any, Dict, Optional
+
+from llama_stack.apis.inference.inference import Inference, UserMessage
+from llama_stack.apis.scoring import ScoringResultRow
+from llama_stack.apis.scoring_functions import ScoringFnParams
+from llama_stack.providers.utils.scoring.base_scoring_fn import RegisteredBaseScoringFn
+
+from .fn_defs.llm_as_judge_405b_math_match import llm_as_judge_405b_math_match
+from .fn_defs.llm_as_judge_base import llm_as_judge_base
+
+
+class LlmAsJudgeScoringFn(RegisteredBaseScoringFn):
+    """
+    A scoring_fn that assigns
+    """
+
+    def __init__(self, inference_api: Inference, *arg, **kwargs) -> None:
+        super().__init__(*arg, **kwargs)
+        self.inference_api = inference_api
+        self.supported_fn_defs_registry = {
+            llm_as_judge_base.identifier: llm_as_judge_base,
+            llm_as_judge_405b_math_match.identifier: llm_as_judge_405b_math_match,
+        }
+
+    async def score_row(
+        self,
+        input_row: Dict[str, Any],
+        scoring_fn_identifier: Optional[str] = None,
+        scoring_params: Optional[ScoringFnParams] = None,
+    ) -> ScoringResultRow:
+        assert scoring_fn_identifier is not None, "Scoring function identifier not found."
+        fn_def = self.supported_fn_defs_registry[scoring_fn_identifier]
+
+        # override params if scoring_params is provided
+        if scoring_params is not None:
+            fn_def.params = scoring_params
+
+        assert fn_def.params is not None, f"LLMAsJudgeparams not found for {fn_def}."
+        assert fn_def.params.prompt_template is not None, "LLM Judge prompt_template not found."
+
+        expected_answer = input_row["expected_answer"]
+        generated_answer = input_row["generated_answer"]
+
+        judge_input_msg = fn_def.params.prompt_template.format(
+            expected_answer=expected_answer,
+            generated_answer=generated_answer,
+        )
+
+        print("judge_input_msg", judge_input_msg)
+
+        judge_response = await self.inference_api.chat_completion(
+            model_id=fn_def.params.judge_model,
+            messages=[
+                UserMessage(
+                    content=judge_input_msg,
+                ),
+            ],
+        )
+
+        score = 1.0 if judge_response.lower().strip() == "yes" else 0.0
+
+        return {
+            "score": score,
+            "judge_feedback": judge_response,
+        }