diff --git a/tig-protocol/src/context.rs b/tig-protocol/src/context.rs
index 579f8c5f..fdc2aac2 100644
--- a/tig-protocol/src/context.rs
+++ b/tig-protocol/src/context.rs
@@ -62,7 +62,6 @@ pub trait Context {
         &self,
         settings: BenchmarkSettings,
         details: PrecommitDetails,
-        hyperparameters: Option<Map<String, Value>>,
     ) -> Result<String>;
     async fn get_proof_details(&self, benchmark_id: &String) -> Option<ProofDetails>;
     async fn get_proof_state(&self, benchmark_id: &String) -> Option<ProofState>;
diff --git a/tig-protocol/src/contracts/benchmarks.rs b/tig-protocol/src/contracts/benchmarks.rs
index 2a068899..1ec21f7c 100644
--- a/tig-protocol/src/contracts/benchmarks.rs
+++ b/tig-protocol/src/contracts/benchmarks.rs
@@ -12,6 +12,7 @@ pub async fn submit_precommit<T: Context>(
     player_id: String,
     settings: BenchmarkSettings,
     hyperparameters: Option<Map<String, Value>>,
+    runtime: Runtime,
     num_nonces: u64,
     seed: u64,
 ) -> Result<String> {
@@ -90,8 +91,9 @@ pub async fn submit_precommit<T: Context>(
                 num_nonces,
                 rand_hash: hex::encode(StdRng::seed_from_u64(seed).gen::<[u8; 16]>()),
                 fee_paid: submission_fee,
+                hyperparameters,
+                runtime,
             },
-            hyperparameters,
         )
         .await?;
     Ok(benchmark_id)
@@ -162,8 +164,14 @@ pub async fn submit_benchmark<T: Context>(
         ));
     }
 
-    // check at least 2 sets of nonces are provided
+    // check solution_quality length
     let precommit_details = ctx.get_precommit_details(&benchmark_id).await.unwrap();
+    if solution_quality.len() != precommit_details.num_nonces as usize {
+        return Err(anyhow!(
+            "Invalid solution_quality length. Should match number of nonces {}",
+            precommit_details.num_nonces
+        ));
+    }
 
     // random sample nonces
     let config = ctx.get_config().await;
diff --git a/tig-structs/src/core.rs b/tig-structs/src/core.rs
index f8fff5aa..9ef7e1f0 100644
--- a/tig-structs/src/core.rs
+++ b/tig-structs/src/core.rs
@@ -86,7 +86,6 @@ serializable_struct_with_getters! {
         details: PrecommitDetails,
         settings: BenchmarkSettings,
         state: PrecommitState,
-        hyperparameters: Option<Map<String, Value>>,
     }
 }
 serializable_struct_with_getters! {
@@ -404,12 +403,20 @@ serializable_struct_with_getters! {
 }
 
 // Precommit child structs
+serializable_struct_with_getters! {
+    Runtime {
+        memory: u64,
+        fuel: u64,
+    }
+}
 serializable_struct_with_getters! {
     PrecommitDetails {
         block_started: u32,
         num_nonces: u64,
         rand_hash: String,
         fee_paid: PreciseNumber,
+        runtime: Runtime,
+        hyperparameters: Option<Map<String, Value>>,
     }
 }
 serializable_struct_with_getters! {