diff --git a/internal/orchestrator/reorg_handler.go b/internal/orchestrator/reorg_handler.go
index 4cae050..12657c2 100644
--- a/internal/orchestrator/reorg_handler.go
+++ b/internal/orchestrator/reorg_handler.go
@@ -102,7 +102,12 @@ func (rh *ReorgHandler) RunFromBlock(lookbackFrom *big.Int) (lastCheckedBlock *b
 		return nil, nil
 	}
 	mostRecentBlockHeader := blockHeaders[0]
-	log.Debug().Msgf("Checking for reorgs from block %s to %s", mostRecentBlockHeader.Number.String(), blockHeaders[len(blockHeaders)-1].Number.String())
+	lastBlockHeader := blockHeaders[len(blockHeaders)-1]
+	if mostRecentBlockHeader.Number.Cmp(lastBlockHeader.Number) == 0 {
+		log.Debug().Msgf("Most recent (%s) and last checked (%s) block numbers are equal, skipping reorg check", mostRecentBlockHeader.Number.String(), lastBlockHeader.Number.String())
+		return nil, nil
+	}
+	log.Debug().Msgf("Checking for reorgs from block %s to %s", mostRecentBlockHeader.Number.String(), lastBlockHeader.Number.String())
 	reorgEndIndex := findReorgEndIndex(blockHeaders)
 	if reorgEndIndex == -1 {
 		return mostRecentBlockHeader.Number, nil
diff --git a/internal/storage/clickhouse.go b/internal/storage/clickhouse.go
index 6357974..7248007 100644
--- a/internal/storage/clickhouse.go
+++ b/internal/storage/clickhouse.go
@@ -932,7 +932,8 @@ func (c *ClickHouseConnector) SetLastReorgCheckedBlockNumber(chainId *big.Int, b
 }
 
 func (c *ClickHouseConnector) LookbackBlockHeaders(chainId *big.Int, limit int, lookbackStart *big.Int) (blockHeaders []common.BlockHeader, err error) {
-	query := fmt.Sprintf("SELECT number, hash, parent_hash FROM %s.blocks WHERE chain_id = %s AND number <= %s AND is_deleted = 0 ORDER BY number DESC", c.cfg.Database, chainId.String(), lookbackStart.String())
+	lookbackEnd := new(big.Int).Sub(lookbackStart, big.NewInt(int64(limit)))
+	query := fmt.Sprintf("SELECT number, hash, parent_hash FROM %s.blocks WHERE chain_id = %s AND number <= %s AND number > %s AND is_deleted = 0 ORDER BY number DESC", c.cfg.Database, chainId.String(), lookbackStart.String(), lookbackEnd.String())
 	query += getLimitClause(limit)
 
 	rows, err := c.conn.Query(context.Background(), query)