diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index b5cfd57..32be04f 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -3,3 +3,16 @@
 This repo uses [pre-commit](https://pre-commit.com/). Install the tool with `pip install pre-commit` (or just `pip install -r requirements-dev.txt`), then install the hooks with `pre-commit install`
 
 Not yet configured to run this in CI, as I'm the only contributor :P but I definitely should if I start getting contributions!
+
+# To wipe the database:
+
+```
+delete from elo_scores;
+delete from games;
+delete from decks;
+delete from players;
+alter sequence decks_id_seq restart with 1;
+alter sequence games_id_seq restart with 1;
+alter sequence players_id_seq restart with 1;
+alter sequence elo_scores_id_seq restart with 1;
+```