diff --git a/README.md b/README.md
index 3e5ef03..9403cfc 100644
--- a/README.md
+++ b/README.md
@@ -13,3 +13,13 @@ If you're wondering where the name came from, this is the C port of [SD](https:/
 ## Performance
 
 CD is designed to be extremely efficient in order to support a very large number of flash cards and should be able to handle millions of cards with ease. If `N` is the number of cards, initializing the program requires `O(N)` time and `O(N)` memory. Selecting a random card and adjusting its weight requires `O(log N)` time. Internally CD uses [segment trees](https://en.wikipedia.org/wiki/Segment_tree) to achieve this time complexity.
+
+Some benchmark results using 10 card updates:
+```
+Benchmark 1: ./cd < test
+  Time (mean ± σ):      57.4 ms ±   4.5 ms    [User: 6.9 ms, System: 2.4 ms]
+  Range (min … max):    51.9 ms …  70.9 ms    41 runs
+Benchmark 2: ./sd < test
+  Time (mean ± σ):      92.7 ms ±   6.8 ms    [User: 8.4 ms, System: 4.5 ms]
+  Range (min … max):    79.4 ms … 108.9 ms    33 runs
+```