---
title: "GA-1 Guide Ahead Drop Rates (US server)"
description: "GA-1 Guide Ahead drop rates on the US server: Ester 51.85%, Orirock 44.44%, Sugar Substitute 44.44%; 27 samples (2022-09-16 to 2022-09-30). Sanity cost 9. Updated 2026-10-23. Crowdsourced Arknights drop data by Penguin Statistics."
lang: en
server: US
zone_id: "act16side_zone1"
stage_id: "act16side_01"
as_of: 2026-10-23T14:49:32Z
time_zone: UTC-7
rows: 7
rows_total: 7
canonical: "https://penguin-stats.io/en/result/us/stage/act16side_zone1/act16side_01"
api: "https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=US&stageFilter=act16side_01&show_closed_zones=true"
license: CC BY-NC 4.0
license_url: https://creativecommons.org/licenses/by-nc/4.0/
attribution: "Data: Penguin Statistics (penguin-stats.io), CC BY-NC 4.0"
---

# GA-1 Guide Ahead Drop Rates (US server)

Server: [CN server](https://penguin-stats.io/en/result/cn/stage/act16side_zone1/act16side_01.md) · **US server** · [JP server](https://penguin-stats.io/en/result/jp/stage/act16side_zone1/act16side_01.md) · [KR server](https://penguin-stats.io/en/result/kr/stage/act16side_zone1/act16side_01.md)

Sanity: 9

Item drops of GA-1 Guide Ahead on the US server, by percentage, highest first

| Item | ID | Loots | Samples | Percentage | Sanity Required Per Item | Time Range |
| --- | --- | ---: | ---: | ---: | ---: | --- |
| [Ester](https://penguin-stats.io/en/result/us/item/30031.md) | `30031` | 14 | 27 | 51.85% | 17.36 | 2022-09-16 to 2022-09-30 |
| [Orirock](https://penguin-stats.io/en/result/us/item/30011.md) | `30011` | 12 | 27 | 44.44% | 20.25 | 2022-09-16 to 2022-09-30 |
| [Sugar Substitute](https://penguin-stats.io/en/result/us/item/30021.md) | `30021` | 12 | 27 | 44.44% | 20.25 | 2022-09-16 to 2022-09-30 |
| [Oriron Shard](https://penguin-stats.io/en/result/us/item/30041.md) | `30041` | 8 | 27 | 29.63% | 30.37 | 2022-09-16 to 2022-09-30 |
| [Diketon](https://penguin-stats.io/en/result/us/item/30051.md) | `30051` | 7 | 27 | 25.93% | 34.71 | 2022-09-16 to 2022-09-30 |
| [Damaged Device](https://penguin-stats.io/en/result/us/item/30061.md) | `30061` | 6 | 27 | 22.22% | 40.50 | 2022-09-16 to 2022-09-30 |
| [Furniture](https://penguin-stats.io/en/result/us/item/furni.md) | `furni` | 1 | 27 | 3.70% | 242.98 | 2022-09-16 to 2022-09-30 |

Samples: runs of the stage reported in the time range. Loots: total number of the item dropped in those runs. Percentage = Loots ÷ Samples, the expected number dropped per run, which can exceed 100%. Sanity Required Per Item = Sanity ÷ Percentage. Time Range: since the drop table of the stage last changed.

Updated 2026-10-23 07:49 (UTC-7). [Full data (JSON)](https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=US&stageFilter=act16side_01&show_closed_zones=true). License: [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)