diff --git a/events/pebblepersist.go b/events/pebblepersist.go
index 2c1c787e5..0ace1c1b8 100644
--- a/events/pebblepersist.go
+++ b/events/pebblepersist.go
@@ -118,7 +118,8 @@ func eventFromPebbleIter(iter *pebble.Iterator) (*XRPCStreamEvent, error) {
 
 func (pp *PebblePersist) Playback(ctx context.Context, since int64, cb func(*XRPCStreamEvent) error) error {
 	var key [8]byte
-	binary.BigEndian.PutUint64(key[:], uint64(since))
+	// Add 1 to the cursor because IterOptions.LowerBound is inclusive.
+	binary.BigEndian.PutUint64(key[:], uint64(since+1))
 
 	iter, err := pp.db.NewIterWithContext(ctx, &pebble.IterOptions{LowerBound: key[:]})
 	if err != nil {
diff --git a/events/persist.go b/events/persist.go
index 670fdc9aa..9e94be954 100644
--- a/events/persist.go
+++ b/events/persist.go
@@ -11,6 +11,8 @@ import (
 // Note that this interface looks generic, but some persisters might only work with RepoAppend or LabelLabels
 type EventPersistence interface {
 	Persist(ctx context.Context, e *XRPCStreamEvent) error
+
+	// Playback calls cb on persisted events with sequence number > since.
 	Playback(ctx context.Context, since int64, cb func(*XRPCStreamEvent) error) error
 	TakeDownRepo(ctx context.Context, usr models.Uid) error
 	Flush(context.Context) error