diff --git a/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/gold_report.json b/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/gold_report.json
new file mode 100644
index 0000000..0123cde
--- /dev/null
+++ b/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/gold_report.json
@@ -0,0 +1,117 @@
+{
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+    "ultralytics": "8.4.160",
+    "torch": "2.14.0+cu130"
+  },
+  "gate": {
+    "baseline": "/home/jungfrau/AareLC_train/models/registry/yolo26n-seg-v4-noflip-mask1-2026-10-02/gold_report.json",
+    "f1_delta": 0.0049,
+    "mask_iou_delta": -0.0125,
+    "mask_score": 0.7842,
+    "mask_score_baseline": 0.7967,
+    "matched_only_iou_delta": -0.0063,
+    "class_f1_delta": {
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+    "rule": "paired bootstrap",
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+      }
+    },
+    "pass": false
+  }
+}
diff --git a/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/metadata.json b/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/metadata.json
new file mode 100644
index 0000000..a2ed0a5
--- /dev/null
+++ b/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/metadata.json
@@ -0,0 +1,71 @@
+{
+  "model_id": "yolo26n-seg-v5-noflip-mask1-2026-10-23",
+  "family": "yolo26n",
+  "task": "segmentation",
+  "training_date": "2026-10-23",
+  "run": "2026-10-22_v5-noflip-mask1",
+  "dataset": "dataset/2026-10-22_v5",
+  "base_weights": "models/base/yolo26n-seg.pt",
+  "hyperparams": {
+    "epochs": 400,
+    "patience": 50,
+    "imgsz": 640,
+    "batch": 16,
+    "device": "0",
+    "overlap_mask": false,
+    "scale": 0.7,
+    "translate": 0.15,
+    "mosaic": 0.5,
+    "close_mosaic": 10,
+    "fliplr": 0,
+    "flipud": 0.3,
+    "shear": 5.0,
+    "perspective": 0.0,
+    "mask_ratio": 1
+  },
+  "export_formats": [
+    "pt"
+  ],
+  "metrics": {
+    "tp": 891,
+    "fp": 170,
+    "fn": 138,
+    "precision": 0.8397737983034873,
+    "recall": 0.8658892128279884,
+    "f1": 0.8526315789473684,
+    "mean_mask_iou": 0.9056148202172515,
+    "n_matched": 891
+  },
+  "gate": {
+    "baseline": "/home/jungfrau/AareLC_train/models/registry/yolo26n-seg-v4-noflip-mask1-2026-10-02/gold_report.json",
+    "f1_delta": 0.0049,
+    "mask_iou_delta": -0.0125,
+    "mask_score": 0.7842,
+    "mask_score_baseline": 0.7967,
+    "matched_only_iou_delta": -0.0063,
+    "class_f1_delta": {
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+      "pin": 0.0121
+    },
+    "pass_point_rule": false,
+    "rule": "paired bootstrap",
+    "bootstrap": {
+      "frames": 335,
+      "mounts": 300,
+      "draws": 2000,
+      "f1": {
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+        "lo": -0.009,
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+      "mask_score": {
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+        "lo": -0.0235,
+        "hi": -0.0014,
+        "win": 0.009
+      }
+    },
+    "pass": false
+  }
+}
diff --git a/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/weights.pt b/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/weights.pt
new file mode 100644
index 0000000..8ea476e
--- /dev/null
+++ b/models/registry/yolo26n-seg-v5-noflip-mask1-2026-10-23/weights.pt
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:daa3e0317ab40006016d33ce3a02edda45d494eec48c31ebd94d316c6c01011a
+size 6606749
diff --git a/runs/2026-10-22_v5-noflip-mask1/latency.json b/runs/2026-10-22_v5-noflip-mask1/latency.json
new file mode 100644
index 0000000..3a0f4e4
--- /dev/null
+++ b/runs/2026-10-22_v5-noflip-mask1/latency.json
@@ -0,0 +1 @@
+{"weights": "runs/2026-10-22_v5-noflip-mask1/ultralytics/train/weights/best.pt", "frames": 150, "imgsz": 640, "infer_scale": 0.5, "half": true, "ms_median": 4.32, "ms_p90": 4.42, "ms_max": 7.05, "fps_median": 231.6, "device": "0", "backend": "pytorch", "gpu": "NVIDIA GB10", "ultralytics": "8.4.160", "torch": "2.14.0+cu130"}
diff --git a/runs/2026-10-22_v5-noflip-mask1/metrics.json b/runs/2026-10-22_v5-noflip-mask1/metrics.json
new file mode 100644
index 0000000..2999e71
--- /dev/null
+++ b/runs/2026-10-22_v5-noflip-mask1/metrics.json
@@ -0,0 +1,57 @@
+{
+  "overall": {
+    "tp": 891,
+    "fp": 170,
+    "fn": 138,
+    "precision": 0.8397737983034873,
+    "recall": 0.8658892128279884,
+    "f1": 0.8526315789473684,
+    "mean_mask_iou": 0.9056148202172515,
+    "n_matched": 891
+  },
+  "gate": {
+    "baseline": "/home/jungfrau/AareLC_train/models/registry/yolo26n-seg-v4-noflip-mask1-2026-10-02/gold_report.json",
+    "f1_delta": 0.0049,
+    "mask_iou_delta": -0.0125,
+    "mask_score": 0.7842,
+    "mask_score_baseline": 0.7967,
+    "matched_only_iou_delta": -0.0063,
+    "class_f1_delta": {
+      "loop_all": -0.0133,
+      "pin": 0.0121
+    },
+    "pass_point_rule": false,
+    "rule": "paired bootstrap",
+    "bootstrap": {
+      "frames": 335,
+      "mounts": 300,
+      "draws": 2000,
+      "f1": {
+        "delta": 0.0049,
+        "lo": -0.009,
+        "hi": 0.0203,
+        "win": 0.761
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+      "mask_score": {
+        "delta": -0.0125,
+        "lo": -0.0235,
+        "hi": -0.0014,
+        "win": 0.009
+      }
+    },
+    "pass": false
+  },
+  "training": {
+    "epochs_run": 295,
+    "precision(B)": 0.76685,
+    "recall(B)": 0.71781,
+    "mAP50(B)": 0.75711,
+    "mAP50-95(B)": 0.62861,
+    "precision(M)": 0.75832,
+    "recall(M)": 0.72382,
+    "mAP50(M)": 0.76038,
+    "mAP50-95(M)": 0.60896
+  },
+  "version": "yolo26n-seg-v5-noflip-mask1-2026-10-23",
+  "measured_at": "2026-10-23T03:53:38"
+}
diff --git a/runs/2026-10-22_v5-noflip-mask1/run.json b/runs/2026-10-22_v5-noflip-mask1/run.json
index ab21aaf..6274ce0 100644
--- a/runs/2026-10-22_v5-noflip-mask1/run.json
+++ b/runs/2026-10-22_v5-noflip-mask1/run.json
@@ -2,18 +2,60 @@
   "id": "2026-10-22_v5-noflip-mask1",
   "dataset": "dataset/2026-10-22_v5",
   "base_weights": "models/base/yolo26n-seg.pt",
-  "status": "exported",
+  "status": "gate_failed",
   "created": "2026-10-22T11:40:13",
   "created_by": "jungfrau@mx-spark-01",
-  "hyperparams": {},
-  "version": null,
-  "metrics": {},
+  "hyperparams": {
+    "epochs": 400,
+    "patience": 50,
+    "imgsz": 640,
+    "batch": 16,
+    "device": "0",
+    "overlap_mask": false,
+    "scale": 0.7,
+    "translate": 0.15,
+    "mosaic": 0.5,
+    "close_mosaic": 10,
+    "fliplr": 0,
+    "flipud": 0.3,
+    "shear": 5.0,
+    "perspective": 0.0,
+    "mask_ratio": 1
+  },
+  "version": "yolo26n-seg-v5-noflip-mask1-2026-10-23",
+  "metrics": {
+    "f1": 0.8526315789473684,
+    "mean_mask_iou": 0.9056148202172515,
+    "gate_pass": false,
+    "baseline": "/home/jungfrau/AareLC_train/models/registry/yolo26n-seg-v4-noflip-mask1-2026-10-02/gold_report.json",
+    "measured_at": "2026-10-23T03:53:38"
+  },
   "history": [
     {
       "status": "exported",
       "at": "2026-10-22T11:40:13",
       "by": "jungfrau@mx-spark-01",
       "note": "promoted recipe (fliplr 0, mask_ratio 1) on dataset v5: candidate for the beamlines, Spark"
+    },
+    {
+      "status": "training",
+      "at": "2026-10-22T11:40:13",
+      "by": "jungfrau@mx-spark-01",
+      "note": "train_run.py"
+    },
+    {
+      "status": "measured",
+      "at": "2026-10-23T03:53:38",
+      "by": "jungfrau@mx-spark-01",
+      "note": ""
+    },
+    {
+      "status": "gate_failed",
+      "at": "2026-10-23T03:53:38",
+      "by": "jungfrau@mx-spark-01",
+      "note": "{\"baseline\": \"/home/jungfrau/AareLC_train/models/registry/yolo26n-seg-v4-noflip-mask1-2026-10-02/gold_report.json\", \"f1_delta\": 0.0049, \"mask_iou_delta\": -0.0125, \"mask_score\": 0.7842, \"mask_score_baseline\": 0.7967, \"matched_only_iou_delta\": -0.0063, \"class_f1_delta\": {\"loop_all\": -0.0133, \"pin\": 0.0121}, \"pass_point_rule\": false, \"rule\": \"paired bootstrap\", \"bootstrap\": {\"frames\": 335, \"mounts\": 300, \"draws\": 2000, \"f1\": {\"delta\": 0.0049, \"lo\": -0.009, \"hi\": 0.0203, \"win\": 0.761}, \"mask_score\": {\"delta\": -0.0125, \"lo\": -0.0235, \"hi\": -0.0014, \"win\": 0.009}}, \"pass\": false}"
     }
-  ]
+  ],
+  "host": "mx-spark-01",
+  "started": "2026-10-22T11:40:13"
 }
diff --git a/runs/README.md b/runs/README.md
index 7b9dc8d..5732779 100644
--- a/runs/README.md
+++ b/runs/README.md
@@ -20,6 +20,7 @@ Generated by `python tools/ledger.py render`; do not edit by hand.
 | 2026-09-30_v3-s-640px | gate_passed | dataset/2026-09-29_v3 | models/base/yolo26s-seg.pt | yolo26s-seg-v3-s-640px-2026-10-01 | 0.861 | 0.886 | yes | 2026-10-02T13:29 |
 | 2026-10-01_v4-noflip-mask1 | promoted | dataset/2026-10-01_v4 | models/base/yolo26n-seg.pt | yolo26n-seg-v4-noflip-mask1-2026-10-02 | 0.852 | 0.891 | yes | 2026-10-02T13:25 |
 | 2026-10-01_v4-recipeA | gate_failed | dataset/2026-10-01_v4 | models/base/yolo26n-seg.pt | yolo26n-seg-v4-recipeA-2026-10-02 | 0.832 | 0.884 | no | 2026-10-02T04:12 |
+| 2026-10-22_v5-noflip-mask1 | gate_failed | dataset/2026-10-22_v5 | models/base/yolo26n-seg.pt | yolo26n-seg-v5-noflip-mask1-2026-10-23 | 0.853 | 0.906 | no | 2026-10-23T03:53 |
 
 States: exported → queued → training → measured → gate_passed → gate_failed → promoted → deployed (or aborted).
 
@@ -143,3 +144,10 @@ States: exported → queued → training → measured → gate_passed → gate_f
 - 2026-10-02T02:05:55 · training · jungfrau@mx-spark-01 — train_run.py
 - 2026-10-02T04:12:20 · measured · jungfrau@mx-spark-01
 - 2026-10-02T04:12:20 · gate_failed · jungfrau@mx-spark-01 — {"baseline": "/home/jungfrau/AareLC_train/models/registry/yolo26n-seg-v3-noflip-mask1-2026-09-30/gold_report.json", "f1_delta": -0.0057, "mask_iou_delta": -0.0083, "mask_score": 0.7464, "mask_score_baseline": 0.7547, "matched_only_iou_delta": -0.0031, "class_f1_delta": {"loop_all": 0.0095, "pin": -0.0036}, "pass": false}
+
+## 2026-10-22_v5-noflip-mask1
+
+- 2026-10-22T11:40:13 · exported · jungfrau@mx-spark-01 — promoted recipe (fliplr 0, mask_ratio 1) on dataset v5: candidate for the beamlines, Spark
+- 2026-10-22T11:40:13 · training · jungfrau@mx-spark-01 — train_run.py
+- 2026-10-23T03:53:38 · measured · jungfrau@mx-spark-01
+- 2026-10-23T03:53:38 · gate_failed · jungfrau@mx-spark-01 — {"baseline": "/home/jungfrau/AareLC_train/models/registry/yolo26n-seg-v4-noflip-mask1-2026-10-02/gold_report.json", "f1_delta": 0.0049, "mask_iou_delta": -0.0125, "mask_score": 0.7842, "mask_score_baseline": 0.7967, "matched_only_iou_delta": -0.0063, "class_f1_delta": {"loop_all": -0.0133, "pin": 0.0121}, "pass_point_rule": false, "rule": "paired bootstrap", "bootstrap": {"frames": 335, "mounts": 300, "draws": 2000, "f1": {"delta": 0.0049, "lo": -0.009, "hi": 0.0203, "win": 0.761}, "mask_score": {"delta": -0.0125, "lo": -0.0235, "hi": -0.0014, "win": 0.009}}, "pass": false}