MC
Mackenzie Caldwell

Mackenzie Caldwell

USAUSAWomen
Birth dateMay 20, 1996
Height-
Weight-

Mackenzie Caldwell is a United States middle-distance runner, born on May 20, 1996. She competes primarily in the 800m, 1500m and Mile.

Her personal bests include 2:15.79 in the 800m, 4:26.51 in the 1500m, 4:56.40 in the Mile, 9:19.07 in the 3000m and 15:51.93 in the 5000m. She is currently active on the international athletics circuit, representing United States.

Key facts
10 000 m
32:41.63
Half Marathon
1:11:29
2026 season best
27:39
Jul 18, 2026
2026 season best
Last competition
Boulderton Half Marathon & 10K
Sep 27, 2026 · 1:20:49
Boulderton Half Marathon & 10K
Age
30 years old

As of Sep 29, 2026: 10 000 m 32:41.63, Half Marathon 1:11:29, 2026 season best 27:39 (Jul 18, 2026) · Last competition: Boulderton Half Marathon & 10K, Sep 27, 2026, 1:20:49 · 30 years old

PB

Personal bests

2:15.79
4:26.51
Mile
4:56.40
9:19.07
15:51.93
32:41.63
1:11:29
2:34:21
5Kilometre
15:56
10Kilometr
35:03
mile-short-track
5:05.00
25Kilometr
1:29:19

Performance Charts

Season bests

SeasonDisciplineResultWindDateTrendCompetitions
2026
8Kilometre
27:39-Jul 18, 2026-Crazy 8s 8K Run
2026
Semi
1:20:49-Sep 27, 2026
↓
Boulderton Half Marathon & 10K
2025
5Kilometre
15:56-May 3, 2025-USA 5 km Road Running Championships
2025
4MilesRoad
20:47-Jun 14, 2025-USA 4 Mile Road Running Championships, Peoria, IL
2025
10Kilometr
35:03-May 26, 2025-BOLDERBoulder
2025
Semi
1:11:56-Jan 19, 2025
↓
Aramco Houston Half Marathon
2024
Semi
1:14:15-Nov 9, 2024
↓
CNO Financial Indianapolis Monumental Half Marathon
2024
Marathon
2:38:37-Feb 3, 2024
↑
U.S. Olympic Team Trials - Marathon
2023
10000m
32:41.63-Mar 31, 2023
↑
Stanford Invitational
2023
25Kilometr
1:29:19-May 13, 2023-USA 25Km Road Running Championships
2022
5000m
15:51.93-Apr 14, 2022
↑
Cougar Athletic Stadium, Azusa, CA (USA)
2022
10000m
33:17.00-Mar 6, 2022
↑
JSerra Catholic HS, San Juan Capistrano, CA (USA)
2022
Semi
1:11:29-Jan 16, 2022
↓
Aramco Houston Half Marathon
2022
Marathon
2:34:21-Dec 4, 2022
↑
Sacramento, CA (USA)
2021
3000m
9:19.07-Feb 13, 2021
↑
Chandler High School, Chandler, AZ (USA)
2021
5000m
16:36.50-May 21, 2021
↑
Icahn Stadium, New York, NY (USA)
2021
Semi
1:13:36-Dec 5, 2021
↓
US Half Marathon Championships
2020
5000m
16:04.36-Aug 15, 2020
↑
Lipscomb Academy, Nashville, TN (USA)
2020
Marathon
2:41:54-Feb 29, 2020
↑
USA Olympic Team Trials Marathon
2019
Mile
4:56.40-Jan 12, 2019
↑
Boulder, CO (USA) (i)
2019
3000m
9:33.54-Feb 23, 2019
↑
Seattle, WA (USA) (i)
2019
5000m
16:32.09-Feb 8, 2019
↑
Seattle, WA (USA) (i)
2019
Marathon
2:43:07-Dec 8, 2019
↑
Sacramento, CA (USA)
2016
800m
2:15.79-Apr 9, 2016-Boulder, CO (USA)
2016
1500m
4:26.51-Apr 22, 2016-Palo Alto, CA (USA)
2016
mile-short-track
5:05.00-Jan 16, 2016-Boulder, CO (USA) (i)
2016
Mile
5:05.00-Jan 16, 2016
↑
Boulder, CO (USA) (i)
2016
3000m
10:08.83-Jan 23, 2016
↑
Colorado Springs, CO (USA) (i)
2016
5000m
16:15.12-Apr 1, 2016
↑
Palo Alto, CA (USA)
2016
10000m
33:52.08-May 14, 2016
↑
Seattle, WA (USA)
2015
10000m
34:39.01-May 16, 2015
↑
Los Angeles, CA (USA)

2026

2 performances
DisciplineResultWindDateCompetitions
Semi
1:20:49-Sep 27Boulderton Half Marathon & 10K
8Kilometre
27:39-Jul 18Crazy 8s 8K Run

2025

4 performances
DisciplineResultWindDateCompetitions
4MilesRoad
20:47-Jun 14USA 4 Mile Road Running Championships, Peoria, IL
10Kilometr
35:03-May 26BOLDERBoulder
5Kilometre
15:56-May 3USA 5 km Road Running Championships
Semi
1:11:56-Jan 19Aramco Houston Half Marathon

2024

2 performances
DisciplineResultWindDateCompetitions
Semi
1:14:15-Nov 9CNO Financial Indianapolis Monumental Half Marathon
Marathon
2:38:37-Feb 3U.S. Olympic Team Trials - Marathon

2023

4 performances
DisciplineResultWindDateCompetitions
10000m
35:07.09-Jul 9USA Championships, Hayward Field, Eugene, OR
10000m
35:07.09-Jul 6USA Championships, Hayward Field, Eugene, OR
25Kilometr
1:29:19-May 13USA 25Km Road Running Championships
10000m
32:41.63-Mar 31Stanford Invitational

2022

5 performances
DisciplineResultWindDateCompetitions
Marathon
2:34:21-Dec 4California International Marathon, Sacramento, CA - US Marathon Ch.
10000m
33:26.36-Apr 29Payton Jordan Invitational, Cobb Track and Angell Field, Palo Alto, CA
5000m
15:51.93-Apr 14Bryan Clay Invitational, Cougar Athletic Stadium, Azusa, CA - Invitational Events
10000m
33:17.00-Mar 6Sound Running TEN, JSerra Catholic HS, San Juan Capistrano, CA
Semi
1:11:29-Jan 16Aramco Houston Half Marathon

2021

3 performances
DisciplineResultWindDateCompetitions
Semi
1:13:36-Dec 5US Half Marathon Championships
5000m
16:36.50-May 21Trials of Miles NYC Qualifier, Icahn Stadium, New York, NY
3000m
9:19.07-Feb 131st Valley of the Sun Track Classic, Chandler High School, Chandler, AZ

2020

2 performances
DisciplineResultWindDateCompetitions
5000m
16:04.36-Aug 15Music City Distance Carnival, Lipscomb Academy, Nashville, TN
Marathon
2:41:54-Feb 29USA Olympic Team Trials Marathon

2019

6 performances
DisciplineResultWindDateCompetitions
Marathon
2:43:07-Dec 8California International Marathon, Sacramento, CA
3000m
9:33.54-Feb 23Mountain Pacific Conference Championships, Seattle, WA (i)
5000m
16:49.08-Feb 22Mountain Pacific Conference Championships, Seattle, WA (i)
5000m
16:32.09-Feb 8Husky Classic, Seattle, WA (i)
3000m
10:03.82-Feb 2Colorado Invitational, Boulder, CO (i)
Mile
4:56.40-Jan 12Potts Invitational, Boulder, CO (i)

2016

12 performances
DisciplineResultWindDateCompetitions
10000m
34:13.19-Jun 9Eugene NCAA Div. I Championships, Eugene, OR
10000m
34:25.58-May 27Lawrence NCAA West Preliminary Round, Lawrence, KS
10000m
33:52.08-May 14Seattle Pac 12 Ch., Seattle, WA
1500m
4:26.51-Apr 22Palo Alto Stanford Twilight, Palo Alto, CA
800m
2:15.79-Apr 9Boulder CU Invitational, Boulder, CO
5000m
16:15.12-Apr 1Palo Alto Stanford Invitational, Palo Alto, CA
1500m
4:40.66-Mar 25Fort Collins Fum McGraw Quadrangular, Fort Collins, CO
5000m
16:32.54-Feb 26Seattle MPSF Indoor Championships, Seattle, WA (i)
5000m
16:32.93-Feb 13Seattle Husky Classic
5000m
16:32.93-Feb 12Seattle Husky Classic
3000m
10:08.83-Jan 23Colorado Springs Air Force Invitational, Colorado Springs, CO (i)
mile-short-track
5:05.00-Jan 16Boulder Potts Invitational, Boulder, CO (i)

2015

2 performances
DisciplineResultWindDateCompetitions
10000m
37:08.33-May 28Austin NCAA West Preliminary Round, Austin, TX
10000m
34:39.01-May 16Los Angeles PAC 12 Ch., Los Angeles, CA

Honours

No medals

FAQ

Frequently asked questions

What is Mackenzie Caldwell's 10 000 m personal best?

Mackenzie Caldwell's 10 000 m personal best is 32:41.63, set on Mar 31, 2023 in Cobb Track and Angell Field, Palo Alto, CA (USA).

Which events does Mackenzie Caldwell compete in?

Mackenzie Caldwell competes in the 10 000 m and Half Marathon.

How did Mackenzie Caldwell perform in 2026?

2026 season best: 27:39, set on Jul 18, 2026. Last competition: Boulderton Half Marathon & 10K on Sep 27, 2026, 1:20:49.