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TDS, segment by segment

Your rank over 23 segments, vs runners at your level — 1,285 starters measured on the 2026 edition.

TDS, 151 km — the course whose 23 segments this page analyzes

Where did you stand?

Your bib or name is enough. Free, no account, no payment.

Free, no account. Your bib only helps us find your times, nothing else.

How to read this page

“Ahead of 62% of runners”
On this segment, 62 runners out of 100 at your level took longer than you. Statisticians call this the 62nd percentile; same thing. 100 = fastest, 0 = slowest.
“Your level”
The 60 runners whose UTMB Index is closest to yours, in the same edition. Not the winner, not the field average: people who run like you do. The index ranges from around 300 to 1,000.
“The median”
The time that splits the field in half: half did better, half did worse. On Entre2Nants, it's 1 h 09. Sturdier than an average, which a single very slow runner is enough to shift.
“The central half”
The shaded zone on the graph: between the fastest quarter and the slowest quarter. Half your group sits there. Staying in it from start to finish means you held your rank.
“The trend”
The solid line. Your rank bounces around segment to segment—a bathroom stop moves it. The trend smooths these jitters to show the real drift. The gray dots are your actual ranks, unretouched.
“A segment”
The section between two timing checkpoints. This race has 23, wildly different lengths—that's why the graph spaces them evenly instead of by kilometer.

Where runners drop out on TDS

570 of 1,285 starters didn't reach the finish, that's 44.4%. The median drop-out point is at km 66.09.

DNF count per checkpoint
CheckpointkmDNFs
Beaufort92.29137
Cormet de Roselend66.08103
Bourg-Saint-Maurice51.0876
La Gittaz73.6356
Fort de la Platte55.6736
Lac Combal16.0834
Col du Petit-Saint-Bernard36.2325
Hauteluce98.6222

Real times, segment by segment

Durations measured on starters from the 2026 edition, indices 342 to 885, median 550. The central half of the field runs from 25th to 75th percentile.

Duration of each segment: median and central half of the field
SegmentkmMedianCentral halfMeasured
Start → Checrouit7.741 h 191 h 10 – 1 h 261,285
Checrouit → Mont-Favre4.51 h 0052 min – 1 h 081,256
Mont-Favre → Lac Combal3.8439 min33 min – 44 min1,255
Lac Combal → Col des Chavannes4.51 h 121 h 00 – 1 h 211,037
Col des Chavannes → Col du Petit-Saint-Bernard15.652 h 372 h 21 – 2 h 531,031
Col du Petit-Saint-Bernard → Séez11.311 h 371 h 26 – 1 h 491,217
Séez → Bourg-Saint-Maurice3.5424 min21 min – 28 min1,202
Bourg-Saint-Maurice → Fort de la Platte4.591 h 521 h 36 – 2 h 111,127
Fort de la Platte → Passeur de Pralognan6.191 h 461 h 33 – 2 h 031,082
Passeur de Pralognan → Cormet de Roselend4.2259 min49 min – 1 h 091,085
Cormet de Roselend → La Gittaz7.551 h 551 h 38 – 2 h 09991
La Gittaz → Entre2Nants3.091 h 091 h 00 – 1 h 20935
Entre2Nants → Outray7.241 h 521 h 40 – 2 h 05926
Outray → Beaufort8.331 h 461 h 30 – 2 h 12911
Beaufort → Hauteluce6.331 h 251 h 14 – 1 h 36778
Hauteluce → Barrage de la Girotte9.942 h 342 h 08 – 3 h 00754
Barrage de la Girotte → Signal E6.752 h 141 h 57 – 2 h 28656
Signal E → Signal S0.1115 min7 min – 26 min637
Signal S → Les Contamines7.431 h 271 h 15 – 1 h 39733
Les Contamines → Col de Tricot7.282 h 552 h 35 – 3 h 14721
Col de Tricot → Bellevue6.681 h 571 h 41 – 2 h 09717
Bellevue → Les Houches4.658 min48 min – 1 h 09716
Les Houches → Chamonix9.131 h 301 h 20 – 1 h 44715

Only measurable stop times are those at double-timing checkpoints: Bourg-Saint-Maurice (median 27 min), Beaufort (median 1 h 02). Elsewhere, only one passage was recorded: the stop time is unknown there, and this page doesn't estimate it.

Questions about TDS

How many runners DNF on TDS?

570 of 1,285 starters didn’t reach the finish in the 2026 edition, i.e. 44.4%. Split times were recorded bib by bib from the official timing, which only publishes finishers. RAVIT survey of September 1, 2026.

Where do runners DNF on TDS?

Km 92.29: Beaufort accounts for 137 of 570 DNFs in the 2026 edition. Then Cormet de Roselend (103) and Bourg-Saint-Maurice (76); together, 316 DNFs. The last recorded checkpoint is definitive. Log from September 1, 2026.

What's the longest segment on TDS?

2 h 55 median: time from Les Contamines to Col de Tricot, over 7.28 km, measured on 721 runners in the 2026 edition. The middle half of the field ran between 2 h 35 and 3 h 14. Log from September 1, 2026.

What's my time compared to on this page?

To 60 runners closest to your index, in a max 25-point index window, on the edition you pick. On each segment, the reference is runners who reached that checkpoint. DNFs count as long as they were racing.

Does this page compare my race to a prediction?

No, not here. This page compares your rank to that of real runners, segment by segment, with no predictions. Your gap to your own plan is shown in your plan debrief: on the Pacing screen, once your race is done.

Data from this page

Measurements for each edition are downloadable in CSV: one line per segment, with median, quartiles, number of runners measured and DNFs per checkpoint. Comma separator, point decimal, UTF-8 encoding. Reuse conditions for this data

Other races analyzed

Prepare for TDS: profile, aid stations and cut-off timesEvery race analyzed segment by segmentView all trail races in calendar

Where these numbers come from. Split times are logged checkpoint by checkpoint from the official race timing, then recalculated by segment. DNFs are reconstructed bib by bib; official results only publish finishers. Analysis by RAVIT — ravit.live, data from September 1, 2026.

SourceLiveTrail