diff --git a/README.md b/README.md
index f9d0c4daa679fa61e3e92c24d81ad8389f3b9f90..6df55d0c6f76cacadefdb6013b0fde5eee679f8d 100644
--- a/README.md
+++ b/README.md
@@ -32,6 +32,7 @@
 |3.29|[pi.js](Node/pi.js)|Node|Intel i7-8700T|December, 2018|
 |3.12|[clusterpi.js](Node/clusterpi.js)|Node, 1 worker|Intel i7-8700T|December, 2018|
 |1.78|[threadpi.c](C/threadpi.c)|C, 4 threads<br>gcc threadpi.c -o threadpi -O3 -ffast-math -pthread|Raspberry Pi 4|December, 2020|
+|0.74|[threadpi.c](C/threadpi.c)|C, 1 thread<br>gcc threadpi.c -o threadpi -O3 -ffast-math -pthread|Raspberry Pi Zero|December, 2020|
 |0.57|[pi.c](C/pi.c)|C<br>gcc pi.c -o pi -lm|Intel i7-8700T|November, 2018|
 |0.47|[numpi.py](Python/numpi.py)|Python, NumPy|Intel i7-8700T|November, 2018|
 |0.029|[pi.py](Python/pi.py)|Python|Intel i7-8700T|November, 2018|