diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md
index d6a70e2..88bfc28 100644
--- a/.planning/ROADMAP.md
+++ b/.planning/ROADMAP.md
@@ -52,7 +52,7 @@ Plans:
 **Plans**: 3 plans
 
 Plans:
-- [ ] 02.1-01: Create MLS module with 30 hardcoded stadiums
+- [x] 02.1-01: Create MLS module with 30 hardcoded stadiums
 - [ ] 02.1-02: Create WNBA module with 13 hardcoded arenas
 - [ ] 02.1-03: Create NWSL module with 13+ hardcoded stadiums
 
@@ -102,7 +102,7 @@ Phases execute in numeric order: 1 → 2 → 2.1 → 3 → 4 → 5 → 6
 |-------|----------------|--------|-----------|
 | 1. Script Architecture | 3/3 | Complete | 2026-01-10 |
 | 2. Stadium Foundation | 2/2 | Complete | 2026-01-10 |
-| 2.1. Additional Sports Stadiums | 0/3 | Not started | - |
+| 2.1. Additional Sports Stadiums | 1/3 | In progress | - |
 | 3. Alias Systems | 0/TBD | Not started | - |
 | 4. Canonical Linking | 0/TBD | Not started | - |
 | 5. CloudKit CRUD | 0/TBD | Not started | - |
diff --git a/.planning/STATE.md b/.planning/STATE.md
index 4fb73fb..3a4a28c 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -10,18 +10,18 @@ See: .planning/PROJECT.md (updated 2026-01-09)
 ## Current Position
 
 Phase: 2.1 of 7 (Additional Sports Stadiums)
-Plan: 0 of TBD in current phase
-Status: Not started
-Last activity: 2026-01-10 — Completed Phase 2 (Stadium Foundation)
+Plan: 1 of 3 in current phase
+Status: In progress
+Last activity: 2026-01-10 — Completed 02.1-01-PLAN.md
 
-Progress: ██░░░░░░░░ 28% (2 of 7 phases complete)
+Progress: ██░░░░░░░░ 32% (6 of 19 plans complete)
 
 ## Performance Metrics
 
 **Velocity:**
-- Total plans completed: 5
-- Average duration: 7.4 min
-- Total execution time: 37 min
+- Total plans completed: 6
+- Average duration: 7.2 min
+- Total execution time: 43 min
 
 **By Phase:**
 
@@ -29,9 +29,10 @@ Progress: ██░░░░░░░░ 28% (2 of 7 phases complete)
 |-------|-------|-------|----------|
 | 1. Script Architecture | 3/3 | 23 min | 7.7 min |
 | 2. Stadium Foundation | 2/2 | 14 min | 7 min |
+| 2.1. Additional Sports Stadiums | 1/3 | 6 min | 6 min |
 
 **Recent Trend:**
-- Last 5 plans: 01-02 (10 min), 01-03 (8 min), 02-01 (7 min), 02-02 (7 min)
+- Last 5 plans: 01-03 (8 min), 02-01 (7 min), 02-02 (7 min), 02.1-01 (6 min)
 - Trend: Consistent
 
 ## Accumulated Context
@@ -50,6 +51,8 @@ Recent decisions affecting current work:
 - **02-01**: Used original opening years (not renovation years) for year_opened field
 - **02-01**: Stadium dataclass already supported year_opened - no changes needed to core.py
 - **02-02**: MLS stadiums excluded from bundled JSON (incomplete data), deferred to Phase 2.1
+- **02.1-01**: Used soccer configuration capacities for shared NFL stadiums (e.g., Mercedes-Benz 42,500 for soccer vs 71,000 for NFL)
+- **02.1-01**: Prioritized hardcoded source (priority=1) over gavinr GeoJSON (priority=2) for complete data
 
 ### Roadmap Evolution
 
@@ -66,6 +69,6 @@ None yet.
 ## Session Continuity
 
 Last session: 2026-01-10
-Stopped at: Completed Phase 2 (Stadium Foundation)
+Stopped at: Completed 02.1-01-PLAN.md (MLS sport module)
 Resume file: None
-Next action: Plan Phase 2.1 (Additional Sports Stadiums)
+Next action: Execute 02.1-02-PLAN.md (WNBA module)