Portugal · Centro
Distance
178 km
Date
Entry fee
€106
€ / km
€0.60
Trail de Conímbriga 177.5km (111 Milhas): Portugal's Treacherous Limestone Ultra, Measured
Trail de Conímbriga Terras de Sicó 177.5km (111 Milhas Terras de Sicó) is a summer trail ultra held in its 17th edition on June 19, 2026 in central Portugal, starting at 8:00 AM from Condeixa-a-Nova — adjacent to the Roman ruins of Conímbriga — and traversing six municipalities through karst limestone terrain, forest paths, and cave-formed trails. The course covers 177.5km with 6,193m of gain (34.9 m/km) with a 40h30m cutoff.
A runner who completed the shorter Ultra Sicó distance captured the race character: 'Sicó is a treacherous race. Anyone who only looks at the D+/km ratio doesn't understand the difficulty.' A 21.0 km section averaging just 1.3% uphill gradient from km 53 illustrates the point — invisible on elevation charts, decisive in runtime. Average uphill 11.3% and downhill −11% are both estimated borderline top 25% of the database. Entry is €0.65/km (€115 late-window rate) and finishers qualify for the Western States 100 2027 lottery. Porto OPO is 87 minutes away. The 177.5km distance has been run since 2022 and draws 35–37 finishers annually.
Elevation and Terrain
Total Meters
6,193m
D+/KM
34.9m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
11.4%
Avg Downhill Gradient
-11.0%
Uphill gradient distribution
| 2–5% | 19.2 km | |
|---|---|---|
| 5–10% | 18.5 km | |
| 10–15% | 12.2 km | |
| 15–20% | 6.0 km | |
| 20%+ | 10.4 km |
Route Profile
AnalysedTerrain breakdown
| 37.1% | Uphill |
|---|---|
| 24.7% | Flat |
| 38.2% | Downhill |
Terrain
Trail de Conímbriga Terras de Sicó – 177.5 km 178km Top Climbs
Top Climbs
| 1 | 10.2 km · 434 m gain starts km 120 · avg 4.3% · max 43.3% |
|---|---|
| 2 | 7.4 km · 277 m gain starts km 147 · avg 3.7% · max 82.5% |
| 3 | 21.0 km · 270 m gain starts km 53 · avg 1.3% · max 50.3% |
Top descents
| 1 | 7.5 km · 405 m drop starts km 79 · avg -5.4% · max -40.0% |
|---|---|
| 2 | 7.4 km · 350 m drop starts km 130 · avg -4.7% · max -46.7% |
| 3 | 6.8 km · 248 m drop starts km 143 · avg -4.0% · max -71.1% |
More Demanding Than the Gradient Suggests: Trail de Conímbriga 177.5km
How hard is the Trail de Conímbriga 177.5km?
▼
Harder than it looks. At 34.9 m/km, elevation density is mid-table; a runner summarised it: 'Sicó is a treacherous race. Anyone who only looks at the D+/km ratio doesn't understand the difficulty.' The 21.03km at 1.28% avg from km 53 depletes energy at running pace in June heat without appearing on any chart. Avg uphill 11.35% and downhill −11.02% estimated borderline top 25% of DTR database.
A Western States 100 Qualifier: The Conímbriga 177.5km Credentials
Is Trail de Conímbriga a WSER qualifier?
▼
Yes — finishers of the 111 milhas (177.5km) qualify for the Western States 100 2027 lottery. Completion of the 111km distance in ≤24 hours also qualifies. [Official: ultrasico.com/regulamento]
Trail de Conímbriga Terras de Sicó 177.5 km Entry Fees: A WSER Qualifier with Tiered Registration Pricing
How much does the 111 Milhas cost?
▼
€115 at the late-window rate (January–June 14, 2026) — €0.65/km. Tiers: €95 (Jul–Sep), €105 (Oct–Dec), €120 (Jun 15–19). No additional fees. Finisher gifts include Portuguese wine, pastry, handmade azulejo tile, cheese, massages, and showers at finish.
June Race Weekend: Trail de Conímbriga 111 Milhas Date, Start, and Timing
When does the 2026 Trail de Conímbriga 111 Milhas take place?
▼
June 19, 2026 at 8:00 AM, Condeixa-a-Nova, Portugal. June 19–21 race weekend. One day before the summer solstice — 15 hours of daylight and June heat are defining conditions.
Getting to Trail de Conímbriga Terras de Sicó 177.5 km: Porto Airport and Coimbra Accommodation
How do I get to the Trail de Conímbriga start?
▼
Porto Airport (OPO) is approximately 87 minutes by road. Lisbon (LIS) is ~2–2.5 hours. Train to Coimbra (~15 min from Condeixa-a-Nova), then taxi/local bus last mile. Strong accommodation in Coimbra (~4km from start).
Trail de Conímbriga Terras de Sicó – 177.5 km 178km GPX
Getting to Trail de Conímbriga Terras de Sicó – 177.5 km
Nearest airport
Porto (OPO) / Lisbon (LIS)
Notes
Start: ~1.5–2.5 hrs to Condeixa-a-Nova / Sicó area / Public transport: strong (train to Coimbra) + taxi/bus last-mile / Accommodation: strong in Coimbra; limited in villages; book early (spring)
