diff --git a/.github/scripts/geocodes.json b/.github/scripts/geocodes.json
index 4f79b66..0a00ab6 100644
--- a/.github/scripts/geocodes.json
+++ b/.github/scripts/geocodes.json
@@ -117,6 +117,10 @@
       47.6062,
       -122.3321
     ],
+    "stanford, ca": [
+      37.4275,
+      -122.1697
+    ],
     "stony brook, ny": [
       40.9257,
       -73.1409
diff --git a/.github/scripts/listings.json b/.github/scripts/listings.json
index de6c75d..3e560ed 100644
--- a/.github/scripts/listings.json
+++ b/.github/scripts/listings.json
@@ -385,6 +385,23 @@
     "date_updated": 1782511200,
     "source": "Jose-Gael-Cruz-Lopez"
   },
+  {
+    "id": "efb231e9-7e4f-439c-bf1e-077464fe8be5",
+    "company_name": "Stanford",
+    "title": "TreeHacks 2026 \u2014 Feb 13\u201315, 2026",
+    "url": "https://treehacks.com/",
+    "locations": [
+      "Stanford, CA"
+    ],
+    "format": "In-Person",
+    "prize": "TBA",
+    "state": "closed",
+    "active": false,
+    "is_visible": true,
+    "date_posted": 1784333282,
+    "date_updated": 1784652408,
+    "source": "akeight"
+  },
   {
     "id": "17229838-845c-40aa-8776-44d5e27c1e14",
     "company_name": "Arya Health",
diff --git a/ARCHIVE.md b/ARCHIVE.md
index d435384..14969ed 100644
--- a/ARCHIVE.md
+++ b/ARCHIVE.md
@@ -17,6 +17,7 @@ This page is a permanent record of every hackathon that has closed. These are ke
 <!-- ARCHIVE_TABLE_START -->
 | Status | Host | Hackathon | Format | Location | Application | Date Posted |
 | ------ | ---- | --------- | ------ | -------- | ----------- | ----------- |
+| 🔒 **[CLOSED]** | Stanford | TreeHacks 2026 — Feb 13–15, 2026 | In-Person | Stanford, CA | :lock: | Jul 17, 2026 |
 | 🔒 **[CLOSED]** | OnlyExit Hacker House | Hack Your Way Into the Hacker House — Jul 18, 2026 | In-Person | New York, NY | :lock: | Jul 12, 2026 |
 | 🔒 **[CLOSED]** | Carleton University | cuHacking 2026 — Jul 10 – Jul 12, 2026 | In-Person | Ottawa, ON | :lock: | Jul 03, 2026 |
 | 🔒 **[CLOSED]** | AITHORS × Okareo | First Ever Agent Evalathon — Jul 6–13, 2026 | Virtual | Online | :lock: | Jul 02, 2026 |