diff --git a/api/src/event.rs b/api/src/event.rs
index fa1e894..80292d6 100644
--- a/api/src/event.rs
+++ b/api/src/event.rs
@@ -71,6 +71,12 @@ pub struct SwapEvent {
     /// Amount of quote tokens in the market.
     pub quote_liquidity: u64,
 
+    /// Amount of hashpower the miner now has.
+    pub miner_hashpower: u64,
+
+    /// Amount of hashpower the block now has.
+    pub block_hashpower: u64,
+
     /// The timestamp of the event.
     pub ts: i64,
 }
diff --git a/api/src/state/market/buy_exact_in.rs b/api/src/state/market/buy_exact_in.rs
index db7b341..55db73b 100644
--- a/api/src/state/market/buy_exact_in.rs
+++ b/api/src/state/market/buy_exact_in.rs
@@ -67,6 +67,8 @@ impl Market {
             quote_fee: quote_fee as u64,
             base_liquidity: self.base.liquidity() as u64,
             quote_liquidity: self.quote.liquidity() as u64,
+            miner_hashpower: 0,
+            block_hashpower: 0,
             ts: 0,
         };
 
diff --git a/api/src/state/market/buy_exact_out.rs b/api/src/state/market/buy_exact_out.rs
index 14b24bb..b7b55d8 100644
--- a/api/src/state/market/buy_exact_out.rs
+++ b/api/src/state/market/buy_exact_out.rs
@@ -72,6 +72,8 @@ impl Market {
             quote_fee: quote_fee as u64,
             base_liquidity: self.base.liquidity() as u64,
             quote_liquidity: self.quote.liquidity() as u64,
+            miner_hashpower: 0,
+            block_hashpower: 0,
             ts: 0,
         };
 
diff --git a/api/src/state/market/sell_exact_in.rs b/api/src/state/market/sell_exact_in.rs
index d68a3d6..e41de69 100644
--- a/api/src/state/market/sell_exact_in.rs
+++ b/api/src/state/market/sell_exact_in.rs
@@ -76,6 +76,8 @@ impl Market {
             quote_fee: quote_fee as u64,
             base_liquidity: self.base.liquidity() as u64,
             quote_liquidity: self.quote.liquidity() as u64,
+            miner_hashpower: 0,
+            block_hashpower: 0,
             ts: 0,
         };
 
diff --git a/api/src/state/market/sell_exact_out.rs b/api/src/state/market/sell_exact_out.rs
index 7ee84cd..38bac79 100644
--- a/api/src/state/market/sell_exact_out.rs
+++ b/api/src/state/market/sell_exact_out.rs
@@ -74,6 +74,8 @@ impl Market {
             quote_fee: quote_fee as u64,
             base_liquidity: self.base.liquidity() as u64,
             quote_liquidity: self.quote.liquidity() as u64,
+            miner_hashpower: 0,
+            block_hashpower: 0,
             ts: 0,
         };
 
diff --git a/program/src/swap.rs b/program/src/swap.rs
index 47bb404..b469c11 100644
--- a/program/src/swap.rs
+++ b/program/src/swap.rs
@@ -122,6 +122,10 @@ pub fn process_swap(accounts: &[AccountInfo<'_>], data: &[u8]) -> ProgramResult
     let vault = vault_info.as_token_account()?;
     market.check_quote_vault(&vault)?;
 
+    // Update swap event hashpower.
+    swap_event.miner_hashpower = miner.hashpower;
+    swap_event.block_hashpower = block.total_hashpower;
+
     // Emit event.
     program_log(
         &[market_info.clone(), ore_program.clone()],