Chelsea Olson (F40)

2026

5 Races | 174 mi.

Sun Mountain

May 16th 2026
| Winthrop, WA
Distance
50 Miles
Overall
48 / 71
Division (F)
21 / 34
12:03:13

Sisters Country

May 3rd 2026
| Sisters, OR
Distance
50 KM
Overall
65 / 217
Division (F)
26 / 97
5:52:26

Gorge Waterfalls

Apr 12th 2026
| Cascade Locks, OR
Distance
50 KM
Overall
204 / 364
Division (F)
69 / 136
7:23:08

Hagg Lake Mud Runs

Feb 14th 2026
| Forest Grove, OR
Distance
50 KM
Overall
34 / 58
Division (F)
4 / 12
6:24:20

Bridle Trails Winter Trail Running Festi...

Jan 10th 2026
| Bellevue, WA
Distance
50 KM
Overall
24 / 44
Division (F)
4 / 11
5:34:44

2025

11 Races | 421 mi.

Wy'east Trailfest

Aug 9th 2025
| Government Camp, OR
Distance
50 KM
Overall
94 / 155
Division (F)
34 / 58
8:28:10

Siskiyou Out Back

Jul 12th 2025
| Ashland, OR
Distance
100 KM
Overall
79 / 114
Division (F)
22 / 31
16:20:24

Strawberry Fields Forever

Jun 21st 2025
| North Bonneville, WA
Distance
50 KM
Overall
13 / 64
Division (F)
5 / 26
5:28:45

Mary's Peak Trail Run

Jun 14th 2025
| Blodgett, OR
Distance
50 KM
Overall
31 / 61
Division (F)
7 / 16
7:29:07

Tillamook Burn Trail Run

May 10th 2025
| Timber, OR
Distance
50 Miles
Overall
91 / 134
Division (F)
27 / 44
12:37:24

Capitol Peak

Apr 26th 2025
| Olympia, WA
Distance
50 Miles
Overall
22 / 33
Division (F)
6 / 12
11:26:52

Peterson Ridge Rumble

Apr 13th 2025
| Sisters, OR
Distance
40 Miles
Overall
28 / 47
Division (F)
5 / 12
7:34:15

Little Backyard Adventure

Mar 15th 2025
| Olympia, WA
Duration
6 Hours
Overall
15 / 19
Division (F)
3 / 5
32

Siuslaw Dunes Trail Run

Mar 8th 2025
| Florence, OR
Distance
50 KM
Overall
36 / 70
Division (F)
12 / 20
6:37:56

Hagg Lake Mud Runs

Feb 22nd 2025
| Forest Grove, OR
Distance
50 KM
Overall
12 / 33
Division (F)
3 / 7
5:32:10

Bristow Trail Run

Feb 2nd 2025
| Dexter, OR
Distance
50 KM
Overall
8 / 15
Division (F)
5 / 8
5:25:35

2024

13 Races | 496 mi.

Willapa Trail Festival

Nov 9th 2024
| Chehalis, WA
Distance
50 KM
Overall
9 / 67
Division (F)
1 / 23
4:57:38

Angel's Rest

Oct 12th 2024
| Cascade Locks, OR
Distance
50 KM
Overall
37 / 54
Division (F)
11 / 15
7:31:11

Mountain Lakes 100

Sep 21st 2024
| Olallie Lake, OR
Distance
100 Miles
Overall
44 / 93
Division (F)
9 / 34
26:56:07

Wy'east Wonder

Sep 7th 2024
| Parkdale, OR
Distance
50 KM
Overall
75 / 206
Division (F)
27 / 87
7:01:25

Backcountry Rise Trail Run

Aug 17th 2024
| Toutle, WA
Distance
50 KM
Overall
59 / 125
Division (F)
16 / 42
8:19:08

Hellz Bellz Ultra

Jun 30th 2024
| Yacolt, WA
Distance
50 Miles
Overall
16 / 41
Division (F)
2 / 9
11:42:08

Tillamook Burn Trail Run

May 12th 2024
| Timber, OR
Distance
50 KM
Overall
62 / 112
Division (F)
17 / 40
7:01:40

Yakima Skyline Rim

Apr 20th 2024
| Yakima, WA
Distance
50 KM
Overall
29 / 63
Division (F)
9 / 24
8:09:03

Gorge Waterfalls

Apr 14th 2024
| Cascade Locks, OR
Distance
50 KM
Overall
116 / 292
Division (F)
42 / 124
6:39:04

Siuslaw Dunes Trail Run

Mar 16th 2024
| Florence, OR
Distance
50 KM
Overall
28 / 57
Division (F)
5 / 13
6:57:18

Little Backyard Adventure

Mar 9th 2024
| Olympia, WA
Duration
6 Hours
Overall
4 / 24
Division (F)
1 / 15
32.01

Hagg Lake Mud Runs

Feb 17th 2024
| Forest Grove, OR
Distance
50 KM
Overall
31 / 66
Division (F)
7 / 19
5:46:20

Capitol Peak Mega Fat Ass

Jan 20th 2024
| Olympia, WA
Distance
34 Miles
Overall
36 / 54
Division (F)
12 / 17
6:30:01

2023

11 Races | 373 mi.

Seattle Ghost Marathon

Nov 25th 2023
| Seattle, WA
Distance
50 KM
Overall
7 / 26
Division (F)
2 / 10
4:51:32

Run The Rock

Nov 12th 2023
| Terrebone, OR
Distance
50 KM
Overall
49 / 126
Division (F)
16 / 46
6:08:22

Silver Falls

Nov 4th 2023
| Silverton, OR
Distance
50 KM
Overall
91 / 139
Division (F)
18 / 32
6:55:23

Willapa Trail Festival

Oct 7th 2023
| Chehalis, WA
Distance
50 KM
Overall
5 / 26
Division (F)
1 / 9
5:07:50

Backcountry Rise Trail Run

Aug 19th 2023
| Toutle, WA
Distance
50 KM
Overall
89 / 191
Division (F)
25 / 71
8:19:36

Wy'east Wonder

Jun 24th 2023
| Parkdale, OR
Distance
50 KM
Overall
94 / 215
Division (F)
35 / 102
6:54:12

Gorge Waterfalls

Apr 1st 2023
| Cascade Locks, OR
Distance
100 KM
Overall
181 / 208
Division (F)
43 / 52
16:03:06

Siuslaw Dunes Trail Run

Mar 11th 2023
| Florence, OR
Distance
50 KM
Overall
15 / 48
Division (F)
2 / 17
6:08:20

Hagg Lake Mud Runs

Feb 18th 2023
| Forest Grove, OR
Distance
50 KM
Overall
33 / 77
Division (F)
7 / 17
5:38:07

Orcas Island 50k

Jan 28th 2023
| Orcas Island, WA
Distance
50 KM
Overall
113 / 139
Division (F)
38 / 52
7:38:46

Bridle Trails Winter Trail Running Festi...

Jan 14th 2023
| Bellevue, WA
Distance
50 KM
Overall
14 / 29
Division (F)
4 / 8
5:38:33

2022

9 Races | 299 mi.

Run The Rock

Nov 12th 2022
| Terrebone, OR
Distance
50 KM
Overall
39 / 107
Division (F)
9 / 33
6:00:32

Elk-Kings Trail Races

Oct 15th 2022
| Tillamook Forest Center, OR
Distance
50 KM
Overall
18 / 26
Division (F)
7 / 7
8:30:08

Perpetua Coast (Oregon Coast)

Oct 1st 2022
| Yachats, OR
Distance
50 KM
Overall
24 / 91
Division (F)
11 / 44
6:47:36

Backcountry Rise Trail Run

Aug 20th 2022
| Toutle, WA
Distance
50 KM
Overall
63 / 116
Division (F)
25 / 46
8:25:54

Wy'east Trailfest

Jul 16th 2022
| Government Camp, OR
Distance
50 KM
Overall
70 / 185
Division (F)
17 / 66
5:55:28

Willapa Trail Festival

May 7th 2022
| Chehalis, WA
Distance
50 KM
Overall
6 / 26
Division (F)
2 / 12
5:05:54

Ancient Lakes Trail Run

Apr 9th 2022
| Quincy, WA
Distance
50 Miles
Overall
20 / 37
Division (F)
5 / 9
11:47:41

Chuckanut 50k

Mar 19th 2022
| Fairhaven, WA
Distance
50 KM
Overall
238 / 421
Division (F)
85 / 181
6:17:44

Hagg Lake Mud Runs

Feb 19th 2022
| Forest Grove, OR
Distance
50 KM
Overall
58 / 106
Division (F)
10 / 26
5:54:35

2021

3 Races | 93 mi.

Silver Falls

Nov 6th 2021
| Silverton, OR
Distance
50 KM
Overall
63 / 113
Division (F)
9 / 25
6:34:43

Volcanic 50

Aug 7th 2021
| Cougar, WA
Distance
50 KM
Overall
81 / 177
Division (F)
18 / 50
9:12:15

Wild Woman Trail Marathon

Jun 19th 2021
| Trout Lake, WA
Distance
50 KM
Overall
14 / 32
Division (F)
14 / 32
6:05:48

2020

5 Races | 243 mi.

Run The Rock

Nov 7th 2020
| Terrebone, OR
Distance
50 KM
Overall
45 / 85
Division (F)
14 / 34
6:12:46

Bryce Canyon

May 30th 2020
| Bryce Canyon, UT
Distance
100 Miles
Overall
27 / 43
Division (F)
8 / 11
32:34:18

Antelope Canyon Ultras

Mar 14th 2020
| Page, AZ
Distance
50 Miles
Overall
38 / 267
Division (F)
9 / 110
10:21:03

Hagg Lake Mud Runs

Feb 15th 2020
| Forest Grove, OR
Distance
50 KM
Overall
32 / 82
Division (F)
5 / 21
5:43:40

Bridle Trails Winter Trail Running Festi...

Jan 11th 2020
| Bellevue, WA
Distance
50 KM
Overall
25 / 52
Division (F)
4 / 16
5:45:18

2019

6 Races | 205 mi.

Run The Rock

Nov 9th 2019
| Terrebone, OR
Distance
50 KM
Overall
39 / 95
Division (F)
11 / 34
6:16:00

Mt. Hood Trail Runs

Jul 13th 2019
| Timothy Lake, OR
Distance
50 Miles
Overall
54 / 122
Division (F)
17 / 48
10:10:27

Strawberry Fields Forever

Jun 29th 2019
| North Bonneville, WA
Distance
50 KM
Overall
6 / 36
Division (F)
2 / 16
5:40:29

Millersylvania 50k

Jun 15th 2019
| Olympia, WA
Distance
50 KM
Overall
18 / 46
Division (F)
7 / 20
4:58:20

Tillamook Burn Trail Run

Apr 28th 2019
| Timber, OR
Distance
50 KM
Overall
80 / 165
Division (F)
19 / 52
6:53:37

Hagg Lake Mud Runs

Feb 16th 2019
| Forest Grove, OR
Distance
50 KM
Overall
64 / 91
Division (F)
10 / 18
6:54:59

2018

3 Races | 112 mi.

Autumn Leaves 50/50

Oct 27th 2018
| St. Paul, OR
Distance
50 Miles
Overall
12 / 32
Division (F)
3 / 11
8:39:20

Three Corner Rock PCT 50K

Sep 1st 2018
| Carson, WA
Distance
50 KM
Overall
29 / 62
Division (F)
8 / 21
6:23:46

Volcanic 50

Aug 4th 2018
| Cougar, WA
Distance
50 KM
Overall
101 / 232
Division (F)
14 / 59
9:06:45

2017

1 Race | 31 mi.

Silver Falls

Nov 4th 2017
| Silverton, OR
Distance
50 KM
Overall
76 / 175
Division (F)
16 / 57
6:10:40
67
Races
8y 6m 15d
Longevity
2,447
Lifetime Miles

Personal Bests

50k (51)
4:51:32
2023
50m (8)
8:39:20
2018
100k (2)
16:03:06
2023
100m (2)
26:56:07
2024
6hr (2)
32.01
2024

Distance by Year

2026
174 Miles
5 Races
2025
421 Miles
11 Races
2024
496 Miles
13 Races
2023
373 Miles
11 Races
2022
299 Miles
9 Races
2021
93 Miles
3 Races
2020
243 Miles
5 Races
2019
205 Miles
6 Races
2018
112 Miles
3 Races
2017
31 Miles
1 Race

Multiple Performances

2026
69th Place
2024
42nd Place
2026
4th Place
2025
3rd Place
2024
7th Place
2023
7th Place
2022
10th Place
2020
5th Place
2019
10th Place
2025
3rd Place
2024
1st Place
2025
12th Place
2024
5th Place
2023
2nd Place
2024
1st Place
2023
1st Place
2022
2nd Place
2024
27th Place
2023
35th Place
2024
16th Place
2023
25th Place
2022
25th Place
2024
17th Place
2019
19th Place
2023
16th Place
2022
9th Place
2020
14th Place
2019
11th Place
2023
18th Place
2021
9th Place
2017
16th Place
2021
18th Place
2018
14th Place

5:32:10

50 KM

4:57:38

50 KM

11:42:08

50 Miles

4:51:32

50 KM

5:07:50

50 KM

6:08:20

50 KM

5:05:54

50 KM

5:40:29

50 KM

8:39:20

50 Miles

Achievements are awarded for races with 25 or more finishers and courses with 200 or more finishers.

Masters: 40-49 / Grand Masters: 50-59 / Senior Grand Masters: 60+

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

Lake to Ocean 100K
Port Mayaka, FL - 19 finishers
100 KM
Salt Lake Foothills Trail Races
Salt Lake City, UT - 84 finishers
50 Miles | 50 KM
Worlds End Ultramarathons
Forksville, PA - 299 finishers
100 KM | 50 KM
South Ridge Trail Challenge
Allison Park, PA - 18 finishers
50 KM
Momentus Backyard Ultra
Monroe, NC - 74 finishers
Backyard
The Sticks
Norton, KS - 72 finishers
72 Hours | 48 Hours | 24 Hours | 12 Hours | 6 Hours
Great Mansfield Outdoors
Mansfield, ON - 56 finishers
100 KM | 50 KM
Cinderella Trail - Spring
Oakland, CA - 28 finishers
50 KM
View All Results