Flat grade share
- Athens Marathon. The Authentic 10K
- 73.1% Favoured
TARC Stone Cat Trail Festival 10K vs Athens Marathon. The Authentic 10K
A data-led head-to-head using sourced race facts and available derived figures under one published methodology.
Data current as ofTARC Stone Cat Trail Festival 10K or Athens Marathon. The Authentic 10K — which comes out ahead?
TARC Stone Cat Trail Festival 10K and Athens Marathon. The Authentic 10K split the available advantages, so the better choice depends on which metric matters most to the runner.
Route comparison snapshot
TARC Stone Cat Trail Festival 10K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 2.3%
- flat grade share
- 46.7%
- lower ascent
- 155 m
- climbing density
- 15.5 m/km
- net elevation
- 0 m
- maximum grade
- 17.5%
Athens Marathon. The Authentic 10K
- Mapped route
- Held
- Elevation profile
- Held
- course flatness
- 0.2% Favoured
- flat grade share
- 73.1% Favoured
- lower ascent
- 79 m
- climbing density
- 7.9 m/km
- net elevation
- -4 m
- maximum grade
- 4.4%
| Metric | TARC Stone Cat Trail Festival 10K | Athens Marathon. The Authentic 10K |
|---|---|---|
| Flat grade share | 46.7% | 73.1% ✓ |
| GAP factor (% slower than flat) | 2.3% | 0.2% ✓ |
| Uphill share | 27.1% | 14.5% |
| Steep-up share | 8.0% | 0.0% |
| Downhill share | 26.2% | 12.4% |
| Total ascent (m) | 155 m | 79 m |
| Climbing density (m/km) | 15.5 m/km | 7.9 m/km |
| Longest climb length (m) | 560 m | 2,130 m |
| Longest climb gain (m) | 23 m | 35 m |
| Longest climb average grade | 4.1% | 1.6% |
| Total descent (m) | 155 m | 83 m |
| Net elevation (m) | 0 m | -4 m |
| Max absolute grade | 17.5% | 4.4% |
| Start elevation (m) | 16 m | 99 m |
| Finish elevation (m) | 16 m | 96 m |
| Scenic score | 100/100 ✓ | 57/100 |
| Conditions | 80/100 ✓ | 80/100 |
GAP factor (% slower than flat)
- Athens Marathon. The Authentic 10K
- 0.2% Favoured
Uphill share
Steep-up share
Downhill share
Total ascent (m)
Climbing density (m/km)
- TARC Stone Cat Trail Festival 10K
- 15.5 m/km
Longest climb length (m)
Longest climb gain (m)
Longest climb average grade
Total descent (m)
Net elevation (m)
Max absolute grade
Start elevation (m)
Finish elevation (m)
Scenic score
- TARC Stone Cat Trail Festival 10K
- 100/100 Favoured
Conditions
- TARC Stone Cat Trail Festival 10K
- 80/100 Favoured
Only metrics available for at least one side are shown. A ✓ marks the better value for each metric (higher-is-better aware). Scores are out of 100 when available. Ascent, climbing density, max absolute grade and median finish describe course or field context and are not marked as better or worse.
Race facts that change the decision
| Fact | TARC Stone Cat Trail Festival 10K | Athens Marathon. The Authentic 10K |
|---|---|---|
| Schedule | Exact race date not confirmed. Event weekend starts 2026-11-07 (legacy event-level date). | Exact race date not confirmed. Event weekend starts 2026-11-07 (legacy event-level date). |
| Location | Ipswich, Massachusetts | Athens, Greece |
| Actual distance | 10 km | 10 km |
| raceindex.org mapped route held | Held | Held |
| raceindex.org elevation profile held | Held | Held |
| Course type | Laps | Unavailable |
| Surface | Trail a mix of double track and single track with roots and rocks throughout, on a 12.5 Mile loop. | Unavailable |
| Terrain | Trail | Unavailable |
| Scenery | Parkland, Coastal, Forest, Mountain, Waterfront, Riverside | City, Historic, Coastal, Countryside |
| Atmosphere | Community, Festival | Destination, Big City, Competitive |
| Total ascent | 155 m | 79 m |
| Climbing density | 15.5 m/km | 7.9 m/km |
| Total descent | 155 m | 83 m |
| Net elevation | 0 m | -4 m |
| Max absolute grade | 17.5% | 4.4% |
| Flat grade share | 46.7% | 73.1% |
| GAP factor | 2.3% | 0.2% |
| Cutoff | 14:00:00 | 1:30:00 |
| Entry model | Open | Open |
Schedule
- TARC Stone Cat Trail Festival 10K
Exact race date not confirmed. Event weekend starts 2026-11-07 (legacy event-level date).
- Athens Marathon. The Authentic 10K
Exact race date not confirmed. Event weekend starts 2026-11-07 (legacy event-level date).
Location
- TARC Stone Cat Trail Festival 10K
- Ipswich, Massachusetts
- Athens Marathon. The Authentic 10K
- Athens, Greece
Actual distance
- TARC Stone Cat Trail Festival 10K
- 10 km
- Athens Marathon. The Authentic 10K
- 10 km
raceindex.org mapped route held
- TARC Stone Cat Trail Festival 10K
- Held
- Athens Marathon. The Authentic 10K
- Held
raceindex.org elevation profile held
- TARC Stone Cat Trail Festival 10K
- Held
- Athens Marathon. The Authentic 10K
- Held
Course type
- TARC Stone Cat Trail Festival 10K
- Laps
- Athens Marathon. The Authentic 10K
- Unavailable
Surface
- TARC Stone Cat Trail Festival 10K
- Trail a mix of double track and single track with roots and rocks throughout, on a 12.5 Mile loop.
- Athens Marathon. The Authentic 10K
- Unavailable
Terrain
- TARC Stone Cat Trail Festival 10K
- Trail
- Athens Marathon. The Authentic 10K
- Unavailable
Scenery
- TARC Stone Cat Trail Festival 10K
- Parkland, Coastal, Forest, Mountain, Waterfront, Riverside
- Athens Marathon. The Authentic 10K
- City, Historic, Coastal, Countryside
Atmosphere
- TARC Stone Cat Trail Festival 10K
- Community, Festival
- Athens Marathon. The Authentic 10K
- Destination, Big City, Competitive
Total ascent
- TARC Stone Cat Trail Festival 10K
- 155 m
- Athens Marathon. The Authentic 10K
- 79 m
Climbing density
- TARC Stone Cat Trail Festival 10K
- 15.5 m/km
- Athens Marathon. The Authentic 10K
- 7.9 m/km
Total descent
- TARC Stone Cat Trail Festival 10K
- 155 m
- Athens Marathon. The Authentic 10K
- 83 m
Net elevation
- TARC Stone Cat Trail Festival 10K
- 0 m
- Athens Marathon. The Authentic 10K
- -4 m
Max absolute grade
- TARC Stone Cat Trail Festival 10K
- 17.5%
- Athens Marathon. The Authentic 10K
- 4.4%
Flat grade share
- TARC Stone Cat Trail Festival 10K
- 46.7%
- Athens Marathon. The Authentic 10K
- 73.1%
GAP factor
- TARC Stone Cat Trail Festival 10K
- 2.3%
- Athens Marathon. The Authentic 10K
- 0.2%
Cutoff
- TARC Stone Cat Trail Festival 10K
- 14:00:00
- Athens Marathon. The Authentic 10K
- 1:30:00
Entry model
- TARC Stone Cat Trail Festival 10K
- Open
- Athens Marathon. The Authentic 10K
- Open
Facts are shown only when they exist in the sourced race record; Not held means no sourced value is held for that race.
Common questions
Which is flatter, TARC Stone Cat Trail Festival 10K or Athens Marathon. The Authentic 10K?
Athens Marathon. The Authentic 10K has the lower GAP factor, making it the flatter course on our route model and more favourable on gradient alone.