Add Race workout kind with Garmin eventType auto-detection, sync-time running filter, and pill-based review queue filter

Race is the 8th fixed workout kind, seeded with a real (not placeholder)
rule since Garmin Connect's eventType.typeKey reports "race" for
manually-tagged race activities. Non-running activity types (padel,
cycling, strength training, ...) are now dropped at sync time instead of
being stored. The Review Queue's type filter is now clickable exclusive
pill buttons instead of a dropdown.

backend/internal/api/api_test.go

@@ -58,7 +58,7 @@ func TestHealth(t *testing.T) {
 	}
 }
 
-func TestWorkoutKindList_ReturnsSevenSeededTypesWithPaceFields(t *testing.T) {
+func TestWorkoutKindList_ReturnsEightSeededTypesWithPaceFields(t *testing.T) {
 	s, _ := newTestServer(t)
 	rec := doJSON(t, s.Router(), http.MethodGet, "/api/workout-kinds/", nil)
 	if rec.Code != http.StatusOK {
@@ -68,8 +68,8 @@ func TestWorkoutKindList_ReturnsSevenSeededTypesWithPaceFields(t *testing.T) {
 	if err := json.Unmarshal(rec.Body.Bytes(), &kinds); err != nil {
 		t.Fatalf("unmarshal: %v", err)
 	}
-	if len(kinds) != 7 {
+	if len(kinds) != 8 {
-		t.Fatalf("expected 7 seeded kinds, got %d", len(kinds))
+		t.Fatalf("expected 8 seeded kinds, got %d", len(kinds))
 	}
 	for _, k := range kinds {
 		if k.PaceMinSecPerKm != nil || k.PaceMaxSecPerKm != nil || k.ExpectedHRZone != nil {

backend/internal/garmin/types.go

@@ -24,12 +24,20 @@ type ActivityType struct {
 	TypeKey string `json:"typeKey"`
 }
 
+// EventType mirrors the nested "eventType" object in get_activities(). Garmin
+// Connect lets a user manually tag an activity's event type (Race, Training,
+// Fitness, Recreation, ...); TypeKey is "race" for activities marked as races.
+type EventType struct {
+	TypeKey string `json:"typeKey"`
+}
+
 // Activity mirrors the fields of interest from get_activities(); the full
 // original object is kept in Raw for fields not modeled here.
 type Activity struct {
 	ActivityID                     int64        `json:"activityId"`
 	ActivityName                   string       `json:"activityName"`
 	ActivityType                   ActivityType `json:"activityType"`
+	EventType                      EventType    `json:"eventType"`
 	BeginTimestamp                 int64        `json:"beginTimestamp"`
 	StartTimeGMT                   string       `json:"startTimeGMT"`
 	StartTimeLocal                 string       `json:"startTimeLocal"`

backend/internal/store/activities.go

@@ -14,6 +14,7 @@ type Activity struct {
 	GarminActivityID        int64
 	ActivityName            string
 	ActivityType            string
+	EventTypeKey            string
 	StartTimeUTC            string
 	BeginTimestampMs        int64
 	DurationSeconds         float64
@@ -49,17 +50,18 @@ type Activity struct {
 func (db *DB) UpsertActivity(ctx context.Context, a Activity) (int64, error) {
 	_, err := db.ExecContext(ctx, `
 		INSERT INTO activities (
-			garmin_activity_id, activity_name, activity_type, start_time_utc,
+			garmin_activity_id, activity_name, activity_type, event_type_key, start_time_utc,
 			begin_timestamp_ms, duration_seconds, distance_meters, avg_hr, max_hr,
 			avg_speed_mps, max_speed_mps, elevation_gain_m, elevation_loss_m,
 			calories, lap_count, aerobic_training_effect, anaerobic_training_effect,
 			training_effect_label, vo2max_value,
 			hr_time_in_zone_1, hr_time_in_zone_2, hr_time_in_zone_3, hr_time_in_zone_4, hr_time_in_zone_5,
 			raw_json, updated_at
-		) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?, datetime('now'))
+		) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?, datetime('now'))
 		ON CONFLICT(garmin_activity_id) DO UPDATE SET
 			activity_name=excluded.activity_name,
 			activity_type=excluded.activity_type,
+			event_type_key=excluded.event_type_key,
 			start_time_utc=excluded.start_time_utc,
 			begin_timestamp_ms=excluded.begin_timestamp_ms,
 			duration_seconds=excluded.duration_seconds,
@@ -84,7 +86,7 @@ func (db *DB) UpsertActivity(ctx context.Context, a Activity) (int64, error) {
 			raw_json=excluded.raw_json,
 			updated_at=datetime('now')
 	`,
-		a.GarminActivityID, a.ActivityName, a.ActivityType, a.StartTimeUTC,
+		a.GarminActivityID, a.ActivityName, a.ActivityType, a.EventTypeKey, a.StartTimeUTC,
 		a.BeginTimestampMs, a.DurationSeconds, a.DistanceMeters, a.AvgHR, a.MaxHR,
 		a.AvgSpeedMps, a.MaxSpeedMps, a.ElevationGainM, a.ElevationLossM,
 		a.Calories, a.LapCount, a.AerobicTrainingEffect, a.AnaerobicTrainingEffect,
@@ -106,7 +108,7 @@ func (db *DB) UpsertActivity(ctx context.Context, a Activity) (int64, error) {
 func scanActivity(row interface{ Scan(...any) error }) (Activity, error) {
 	var a Activity
 	err := row.Scan(
-		&a.ID, &a.GarminActivityID, &a.ActivityName, &a.ActivityType, &a.StartTimeUTC,
+		&a.ID, &a.GarminActivityID, &a.ActivityName, &a.ActivityType, &a.EventTypeKey, &a.StartTimeUTC,
 		&a.BeginTimestampMs, &a.DurationSeconds, &a.DistanceMeters, &a.AvgHR, &a.MaxHR,
 		&a.AvgSpeedMps, &a.MaxSpeedMps, &a.ElevationGainM, &a.ElevationLossM,
 		&a.Calories, &a.LapCount, &a.AerobicTrainingEffect, &a.AnaerobicTrainingEffect,
@@ -119,7 +121,7 @@ func scanActivity(row interface{ Scan(...any) error }) (Activity, error) {
 }
 
 const activityColumns = `
-	id, garmin_activity_id, activity_name, activity_type, start_time_utc,
+	id, garmin_activity_id, activity_name, activity_type, event_type_key, start_time_utc,
 	begin_timestamp_ms, duration_seconds, distance_meters, avg_hr, max_hr,
 	avg_speed_mps, max_speed_mps, elevation_gain_m, elevation_loss_m,
 	calories, lap_count, aerobic_training_effect, anaerobic_training_effect,

backend/internal/store/migrations/0007_race_kind.sql

@@ -0,0 +1,12 @@
+-- "Race" is an 8th fixed workout kind. Unlike the other 7 (seeded with a
+-- never-matching placeholder rule pending manual tuning), it gets a real
+-- rule from day one: Garmin Connect lets a user manually tag an activity's
+-- event type as "Race", and that value round-trips through get_activities()
+-- as eventType.typeKey -- a genuine, deterministic signal, not a guess.
+ALTER TABLE activities ADD COLUMN event_type_key TEXT NOT NULL DEFAULT '';
+
+INSERT INTO workout_kinds (name, description, color, rule_json, priority, is_active) VALUES
+    ('Race', '', '#dc2626', '{"match":"all","conditions":[{"metric":"is_race","op":"==","value":true}]}', 0, 1);
+
+INSERT INTO workout_type_paces (workout_kind_id)
+SELECT id FROM workout_kinds WHERE name = 'Race';

backend/internal/store/workoutkinds_taxonomy_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 )
 
-func TestWorkoutTaxonomy_SeededWithSevenFixedTypes(t *testing.T) {
+func TestWorkoutTaxonomy_SeededWithEightFixedTypes(t *testing.T) {
 	db := openTestDB(t)
 	ctx := context.Background()
 
@@ -13,13 +13,13 @@ func TestWorkoutTaxonomy_SeededWithSevenFixedTypes(t *testing.T) {
 	if err != nil {
 		t.Fatalf("ListWorkoutKinds: %v", err)
 	}
-	if len(kinds) != 7 {
+	if len(kinds) != 8 {
-		t.Fatalf("expected 7 seeded workout kinds, got %d: %+v", len(kinds), kinds)
+		t.Fatalf("expected 8 seeded workout kinds, got %d: %+v", len(kinds), kinds)
 	}
 
 	wantNames := map[string]bool{
 		"Easy Run": false, "Long Run": false, "Threshold 30'": false, "Threshold 60'": false,
-		"Tempo": false, "Interval": false, "MAS Test": false,
+		"Tempo": false, "Interval": false, "MAS Test": false, "Race": false,
 	}
 	for _, k := range kinds {
 		if _, ok := wantNames[k.Name]; !ok {

backend/internal/store/workoutpaces_test.go

@@ -13,8 +13,8 @@ func TestWorkoutTypePaces_SeededOnePerKindThenUpdate(t *testing.T) {
 	if err != nil {
 		t.Fatalf("ListWorkoutTypePaces: %v", err)
 	}
-	if len(all) != 7 {
+	if len(all) != 8 {
-		t.Fatalf("expected 7 seeded pace rows (one per taxonomy kind), got %d", len(all))
+		t.Fatalf("expected 8 seeded pace rows (one per taxonomy kind), got %d", len(all))
 	}
 	for _, p := range all {
 		if p.PaceMinSecPerKm != nil || p.PaceMaxSecPerKm != nil || p.ExpectedHRZone != nil {

backend/internal/sync/mapping.go

@@ -2,6 +2,7 @@ package sync
 
 import (
 	"encoding/json"
+	"strings"
 	"time"
 
 	"smartrun/backend/internal/classify"
@@ -9,11 +10,21 @@ import (
 	"smartrun/backend/internal/store"
 )
 
+// isRunningActivityType reports whether a Garmin activityType.typeKey
+// represents a running activity (running, trail_running, treadmill_running,
+// track_running, indoor_running, virtual_run, ...) as opposed to other
+// sports (padel, cycling, strength training, ...) that also show up in
+// get_activities().
+func isRunningActivityType(typeKey string) bool {
+	return strings.Contains(strings.ToLower(typeKey), "run")
+}
+
 func toActivityRow(a garmin.Activity) store.Activity {
 	return store.Activity{
 		GarminActivityID:        a.ActivityID,
 		ActivityName:            a.ActivityName,
 		ActivityType:            a.ActivityType.TypeKey,
+		EventTypeKey:            a.EventType.TypeKey,
 		StartTimeUTC:            a.StartTimeGMT,
 		BeginTimestampMs:        a.BeginTimestamp,
 		DurationSeconds:         a.Duration,
@@ -125,9 +136,14 @@ func toSampleRows(samples []garmin.Sample) []store.Sample {
 // rules. maxHR is the user's configured max heart rate, used only to derive
 // avg_hr_pct_max (Garmin's activity/lap summaries don't include it directly).
 func buildMetricContext(a store.Activity, laps []store.Lap, maxHR float64) classify.MetricContext {
+	isRace := 0.0
+	if a.EventTypeKey == "race" {
+		isRace = 1.0
+	}
 	ctx := classify.MetricContext{
 		"duration_seconds": a.DurationSeconds,
 		"distance_meters":  a.DistanceMeters,
+		"is_race":          isRace,
 	}
 	if a.AvgSpeedMps != nil && *a.AvgSpeedMps > 0 {
 		ctx["avg_pace_sec_per_km"] = 1000 / *a.AvgSpeedMps

backend/internal/sync/service.go

@@ -208,6 +208,15 @@ func (s *Service) fetchAndStoreWindow(ctx context.Context, startDate, endDate st
 		return 0, fmt.Errorf("get_activities(%s, %s): %w", startDate, endDate, err)
 	}
 	for _, a := range activities {
+		// Only running activities are of interest here; other sports (padel,
+		// cycling, strength training, ...) also come back from
+		// get_activities() but are dropped rather than stored. len(activities)
+		// below stays the unfiltered count, since it drives the backfill
+		// watermark's "reached start of history" check -- a page containing
+		// only non-running activities must not look like an empty page.
+		if !isRunningActivityType(a.ActivityType.TypeKey) {
+			continue
+		}
 		if _, err := s.db.UpsertActivity(ctx, toActivityRow(a)); err != nil {
 			return 0, fmt.Errorf("store activity %d: %w", a.ActivityID, err)
 		}

backend/internal/sync/service_test.go

@@ -62,6 +62,40 @@ func TestBackfill_StoresActivitiesAndRecordsSyncRun(t *testing.T) {
 	}
 }
 
+func TestBackfill_SkipsNonRunningActivities(t *testing.T) {
+	db := openTestDB(t)
+	ctx := context.Background()
+
+	m := &mock.Client{Activities: []garmin.Activity{
+		{ActivityID: 1, ActivityType: garmin.ActivityType{TypeKey: "running"},
+			StartTimeGMT: "2026-07-01 06:00:00", Distance: 5000, Duration: 1500},
+		{ActivityID: 2, ActivityType: garmin.ActivityType{TypeKey: "trail_running"},
+			StartTimeGMT: "2026-07-02 06:00:00", Distance: 8000, Duration: 2400},
+		{ActivityID: 3, ActivityType: garmin.ActivityType{TypeKey: "paddelball"},
+			StartTimeGMT: "2026-07-03 06:00:00", Distance: 0, Duration: 1800},
+		{ActivityID: 4, ActivityType: garmin.ActivityType{TypeKey: "indoor_cycling"},
+			StartTimeGMT: "2026-07-04 06:00:00", Distance: 0, Duration: 1800},
+	}}
+	svc := NewService(m, db, Config{}, fixedNow(time.Date(2026, 7, 11, 0, 0, 0, 0, time.UTC)))
+
+	if err := svc.Backfill(ctx); err != nil {
+		t.Fatalf("Backfill: %v", err)
+	}
+
+	activities, err := db.ListActivities(ctx, store.ActivityFilter{})
+	if err != nil {
+		t.Fatalf("ListActivities: %v", err)
+	}
+	if len(activities) != 2 {
+		t.Fatalf("expected 2 stored (running-only) activities, got %d: %+v", len(activities), activities)
+	}
+	for _, a := range activities {
+		if a.GarminActivityID != 1 && a.GarminActivityID != 2 {
+			t.Errorf("unexpected non-running activity stored: %+v", a)
+		}
+	}
+}
+
 func TestFillPendingDetailsAndClassify_EndToEnd(t *testing.T) {
 	db := openTestDB(t)
 	ctx := context.Background()
@@ -162,6 +196,21 @@ func TestBuildMetricContext_DerivesExpectedMetrics(t *testing.T) {
 	if got := ctx["lap_interval_pattern"]; got != 0 {
 		t.Errorf("lap_interval_pattern = %v, want 0", got)
 	}
+	if got := ctx["is_race"]; got != 0 {
+		t.Errorf("is_race = %v, want 0 (EventTypeKey not set)", got)
+	}
+}
+
+func TestBuildMetricContext_DerivesIsRace(t *testing.T) {
+	ctx := buildMetricContext(store.Activity{EventTypeKey: "race"}, nil, 0)
+	if got := ctx["is_race"]; got != 1 {
+		t.Errorf("is_race = %v, want 1 when EventTypeKey is \"race\"", got)
+	}
+
+	ctx = buildMetricContext(store.Activity{EventTypeKey: "training"}, nil, 0)
+	if got := ctx["is_race"]; got != 0 {
+		t.Errorf("is_race = %v, want 0 when EventTypeKey is not \"race\"", got)
+	}
 }
 
 func TestBackfill_SecondRunIsANoOpOnceHorizonFullyCovered(t *testing.T) {

frontend/src/App.css

@@ -137,6 +137,25 @@ button:disabled {
   cursor: default;
 }
 
+.filter-pills {
+  display: flex;
+  gap: 0.5rem;
+  flex-wrap: wrap;
+  margin-bottom: 1rem;
+}
+
+.filter-pill {
+  border-radius: 999px;
+  padding: 0.35rem 0.9rem;
+  font-size: 0.85rem;
+}
+
+.filter-pill.active {
+  background: #3b82f6;
+  border-color: #3b82f6;
+  color: #fff;
+}
+
 .empty-state {
   color: #9aa0ab;
 }

frontend/src/pages/ReviewQueue.tsx

@@ -59,25 +59,41 @@ export function ReviewQueue() {
     return items.filter((item) => candidates(item).some((c) => c.workout_kind_id === id));
   }, [items, filterKindId]);
 
+  function toggleFilter(id: string) {
+    setFilterKindId((prev) => (prev === id ? "" : id));
+  }
+
   return (
     <div className="page">
       <h2>Review Queue</h2>
       {error && <p className="error">{error}</p>}
 
       {items.length > 0 && (
-        <div className="controls">
+        <div className="filter-pills">
-          <label>
+          <button
-            Filter
+            type="button"
-            <select value={filterKindId} onChange={(e) => setFilterKindId(e.target.value)}>
+            className={`filter-pill${filterKindId === "" ? " active" : ""}`}
-              <option value="">All ({items.length})</option>
+            onClick={() => toggleFilter("")}
-              <option value={UNSORTED}>Unsorted (no candidates)</option>
+          >
+            All ({items.length})
+          </button>
+          <button
+            type="button"
+            className={`filter-pill${filterKindId === UNSORTED ? " active" : ""}`}
+            onClick={() => toggleFilter(UNSORTED)}
+          >
+            Unsorted (no candidates)
+          </button>
           {kinds.map((k) => (
-                <option key={k.ID} value={k.ID}>
+            <button
+              key={k.ID}
+              type="button"
+              className={`filter-pill${filterKindId === String(k.ID) ? " active" : ""}`}
+              onClick={() => toggleFilter(String(k.ID))}
+            >
               {k.Name}
-                </option>
+            </button>
           ))}
-            </select>
-          </label>
         </div>
       )}