diff --git a/doc/next/4-runtime.md b/doc/next/4-runtime.md
index d8fcb8f..c26d565 100644
--- a/doc/next/4-runtime.md
+++ b/doc/next/4-runtime.md
@@ -7,7 +7,7 @@
This garbage collector’s design improves the performance of marking and
scanning small objects through better locality and CPU scalability.
-Benchmark result vary, but we expect somewhere between a 10—40% reduction
+Benchmark results vary, but we expect somewhere between a 10—40% reduction
in garbage collection overhead in real-world programs that heavily use the
garbage collector.
Further improvements, on the order of 10% in garbage collection overhead,