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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Ultramarathon
  • 160.9 km
  • Lawrence
  • Event dates –
  • Past event

The Hawk Hundred (Lawrence) Ultramarathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2026 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Modelled energy-cost change 1.2% versus flat · net elevation 8 m

View verified GPS mapOfficial event website ↗
Data current as of

Decision summary

The Hawk Hundred (Lawrence) Ultramarathon at a glance

Route ascent
1,527 m

Lower than 66% of comparable mapped races

Cut-off average pace
11:56/km

32:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.

Typical conditions
46/100

Historical race-date favourability, not a forecast

Evidence depth
42 verified facts

Stored GPS route

Quick answers

What runners ask first

The Hawk Hundred (Lawrence) Ultramarathon route map

raceindex.org has a GPS course file for The Hawk Hundred (Lawrence) Ultramarathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.

How hilly is the The Hawk Hundred (Lawrence) Ultramarathon?

The The Hawk Hundred (Lawrence) Ultramarathon route has 1,527 m of ascent, 1,518 m of descent and an estimated 1.2% grade-adjusted pace penalty versus a flat route.

Where does the The Hawk Hundred (Lawrence) Ultramarathon route go?

The The Hawk Hundred (Lawrence) Ultramarathon route starts at Clinton State Park, Shelter 1 / Overlook Park, 798 N 1402 Rd, Lawrence, KS 66049 and finishes at Clinton State Park, Lawrence, KS (same Start/Finish HQ as the start). Underfoot, expect technical rolling singletrack trail through Clinton State Park, including a scenic shoreline red-blazed section, the Cactus Ridge section and a 2.5-mile loop with two ascents of Bunker Hill. It passes Clinton Lake shoreline, Sanders Mound, Land's End, Cactus Ridge and Bunker Hill. Three distances (100 mile, 50 mile and marathon) run on the same 25-mile loop.

What should runners know on race day for the The Hawk Hundred (Lawrence) Ultramarathon?

Drop bags allowed at the Land's End, West Park Road and Start/Finish aid stations; crew access at West Park Road and Start/Finish. 3. Pacers are permitted for the ultra distances under the Lawrence Trail Hawks race rules.

Race character

Scenery

  • Parkland
  • Coastal
  • Forest
  • Lakeside
  • Countryside

Terrain

  • Trail
Elevation character
Rolling
Technicality
Technical

Entry, logistics and records

Records and field

Men's course record
16:12:35 (Jeremy Morris)
Women's course record
18:26:43 (Xin Xin)
Field size
No published participant cap on the registration page; described as a no-frills, self-supported-spirit trail hundred.

Entry requirements

Entry status
Past event: The listed edition date has passed.
Cut-off
100 Mile and 50 Mile have a 32-hour cutoff; the 100 starts 6:00 AM and 50 starts 7:00 AM Saturday, with all runners cut off at 2:00 PM Sunday at the Start/Finish, plus intermediate cutoffs of 10:00 AM (West Park Road) and 12:00 noon (Land's End) Sunday.
Qualification status
No qualifying standard required; open registration ultra. Entry is not a ballot/lottery and the race is not a road Boston Qualifier.

Race day logistics

Aid stations
3
Pacers
Pacers are permitted for the ultra distances under the Lawrence Trail Hawks race rules.
Bag drop
Drop bags allowed at the Land's End, West Park Road and Start/Finish aid stations; crew access at West Park Road and Start/Finish.
Medal
Handcrafted finisher awards: a Hawk finishers buckle for the 100 mile and artisan-made mugs/medals for the 50 mile and marathon.

Access and course status

Start
Clinton State Park, Shelter 1 / Overlook Park, 798 N 1402 Rd, Lawrence, KS 66049
Finish
Clinton State Park, Lawrence, KS (same Start/Finish HQ as the start)

Course facts

Course type
Laps
Surface
Technical rolling singletrack trail through Clinton State Park, including a scenic shoreline red Blazed section, the Cactus Ridge section and a 2.5 Mile loop with two ascents of Bunker Hill.
Landmarks
Clinton Lake shoreline, Sanders Mound, Land's End, Cactus Ridge, Bunker Hill, West Park Road, Marina Road
Notable features
  • Three distances (100 mile, 50 mile and marathon) run on the same 25-mile loop
  • finishers receive handcrafted awards, including a Hawk finishers buckle for 100-milers and artisan-made mugs and medals for the shorter distances
  • 100-milers run 4 laps of the 25-mile Big Loop, 50-milers run 2 laps, and marathoners run a 26.2-mile variation that adds about 1.2 miles on the Nature Center Trail before the loop

How hilly is the The Hawk Hundred (Lawrence) Ultramarathon?

15%61%17%
  • Steep descent 4%
  • Descent 15%
  • Flat 61%
  • Climb 17%
  • Steep climb 3%
Total ascent
1,527 m
Net elevation
+8 m
GAP factor
1.2%
Longest climb
1,110 m at 2.9%
Gradient mix and ascent are derived from the course geometry under our published normalisation, not taken from organiser marketing.

What are typical race-day conditions?

  • 23°CTypical temperature
  • 16 kphTypical wind
  • 2 mmTypical rainfall
  • 46Favourability /100
Typical conditions for the race date and locality, warmer than the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

More race details

Is the The Hawk Hundred (Lawrence) Ultramarathon flat?

Its normalised GAP factor is 1.2% slower than a flat course, with about 1527 m of total ascent.

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (3)

Read the full methodology →