diff --git a/internal/domain/domain.go b/internal/domain/domain.go
index 20fbd75..92df9f7 100644
--- a/internal/domain/domain.go
+++ b/internal/domain/domain.go
@@ -147,14 +147,18 @@ const (
 	ReconcileSkipped ReconcileStatus = "skipped"
 )
 
-// ContestedSpot is a place the engines disagreed that a reader may want to check
-// against the audio: one the model changed, or one it was unsure about.
+// ContestedSpot is a place the engines disagreed that the model judged: it changed it,
+// kept the base's reading, or could not decide. Every judged spot is stored, not only
+// the ones a reader should check, because the audio is not retained and the kept ones
+// are what a later evaluation needs (ADR-035). The page lists only the changed and
+// uncertain ones.
 type ContestedSpot struct {
-	Seconds float64 `json:"seconds"` // roughly where in the recording
-	Base    string  `json:"base"`    // what the base engine heard
-	Alt     string  `json:"alt"`     // what the other engine heard
-	Used    string  `json:"used"`    // "base" or "alt": the reading now in the text
-	Unsure  bool    `json:"unsure"`  // the model could not decide; the base was kept
+	Seconds float64 `json:"seconds"`          // roughly where in the recording
+	Base    string  `json:"base"`             // what the base engine heard
+	Alt     string  `json:"alt"`              // what the other engine heard
+	Used    string  `json:"used"`             // "base" or "alt": the reading now in the text
+	Unsure  bool    `json:"unsure"`           // the model could not decide; the base was kept
+	Before  string  `json:"before,omitempty"` // the few words just before the spot, to find it by
 }
 
 // Reconciliation records how a merged transcript came about, so the page can say so