From 016c445dfa5c4ea920ca0399f6aefd70d3cb04c4 Mon Sep 17 00:00:00 2001
From: Derek Cofausper <256792747+decofe@users.noreply.github.com>
Date: Wed, 4 Mar 2026 12:28:47 -0800
Subject: [PATCH] fix(reth-bench): off-by-one when deriving --from from engine
 head (#22788)

Co-authored-by: Alexey Shekhirin <5773434+shekhirin@users.noreply.github.com>
---
 bin/reth-bench/src/bench/context.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bin/reth-bench/src/bench/context.rs b/bin/reth-bench/src/bench/context.rs
index 2314c3eb71..04fd8c7470 100644
--- a/bin/reth-bench/src/bench/context.rs
+++ b/bin/reth-bench/src/bench/context.rs
@@ -92,7 +92,7 @@ impl BenchContext {
         //     - `from = head + 1`
         //     - `to = head + advance`
         // - If only `--to` is provided, fetches the latest block from the engine and sets:
-        //     - `from = head + 1`
+        //     - `from = head`
         // - Otherwise, uses the values from `--from` and `--to`.
         let (from, to) = if let Some(advance) = bench_args.advance {
             if advance == 0 {
@@ -112,7 +112,7 @@ impl BenchContext {
                 .ok_or_else(|| eyre::eyre!("Failed to fetch latest block from engine"))?;
             let head_number = head_block.header.number;
             info!(target: "reth-bench", "No --from provided, derived from engine head: {}", head_number);
-            (Some(head_number + 1), bench_args.to)
+            (Some(head_number), bench_args.to)
         } else {
             (bench_args.from, bench_args.to)
         };