# Conner Mantz

Conner Blair Mantz (born December 8, 1996) is an American long-distance runner, who specializes in the marathon. He ran collegiately for Brigham Young University and won the 2020 and 2021 NCAA Division I Cross Country Championships. Mantz was the winner of the 2024 U.S. Olympic Marathon Trials. At the 2025 Houston Half Marathon, Mantz set a new American record time of 59:17, besting the previous record of 59:43 set by Ryan Hall in 2007. He has competed professionally for Nike since 2021.

## Background and youth sports

Mantz completed his first half marathon at age 12, which motivated him to participate in other races. At age 14, he finished a half marathon in 1:11:24, averaging a pace of 5:26.8 minutes per mile. He attended Sky View High School in Smithfield, Utah, where he was a three-time All-American at the Foot Locker Cross Country Championships. Mantz also represented the United States in the junior race at the 2015 IAAF World Cross Country Championships in Guiyang, China. He placed 29th over the 8 km race, leading Team USA to a sixth place finish.
Mantz committed to Brigham Young University (BYU), among offers from several other institutions, including Princeton and Furman. After high school, Mantz took a two-year hiatus from running to serve as a missionary for the Church of Jesus Christ of Latter-day Saints in Ghana. Upon returning in 2017, Mantz redshirted his first year at BYU.
His great grandfather, Paul Mantz, was a noted air racing pilot and flight instructor.

## Collegiate competition

Mantz ran for Brigham Young University (BYU). He won a national title at the 2020 NCAA Division I Cross Country Championships in Stillwater, Oklahoma. He won by over 20 seconds with a final time of 29:26.1. This victory broke a streak of wins by international athletes, making Mantz the first American to win the event since Galen Rupp in 2008.
The 2021 NCAA Division I Cross Country Championships saw Mantz repeat as the winner. He covered the first 5k of the race in 14:16.4 and the second 5k in 14:16.7, finishing in a course record of 28:33.1. The win concluded an undefeated season of cross country for Mantz.
Performances by Mantz on the track included a world-leading performance of 13:34.46 over 5,000m at the UW Invitational in February 2021. His time also broke the BYU school record for the indoor 5,000m. Later that year, Mantz finished runner up in the 10000 metres at the 2021 NCAA Division I Outdoor Track and Field Championships.

## Senior competition
### 2021

Mantz competed in the 2020 United States Olympic trials in June 2021, which were delayed due to COVID-19 pandemic. He placed fifth in the 5000 m and eighth in the 10000 m.
ln December 2021, Mantz won the USA Half Marathon Championships in Hardeeville, South Carolina, with a time of 1:00:55. He competed again in the half marathon in March 2022, taking fifth at the NYC half marathon in 1:01.40.

### 2022

In September 2022, Mantz won a national title at the USATF 20 Km Road Championships. The following month, he debuted in the marathon at the 2022 Chicago Marathon, placing seventh in 2:08:16. He was the top American finisher in the race, and his performance was the second fastest marathon debut by an American, closely trailing Leonard Korir's debut record of 2:07:56.

### 2023

At the 2023 Boston Marathon, Mantz stayed in the lead pack for most of the race. Running with a large group of leaders, including Eliud Kipchoge, Evans Chebet, CJ Albertson, Mantz reached halfway in 1:02:20. By the 20-mile mark, he was 45 seconds off the five leaders (which included Chebet and Benson Kipruto). He nearly blacked out at mile 24, but stayed upright to finish as the third American (11th overall) in 2:10:25. At the 2023 Chicago Marathon, Mantz was the sixth place finisher and top American, lowering his personal best by 29 seconds to 2:07:47. His time met the qualifying standard for the 2024 Paris Olympics.

### 2024

Mantz won the 2024 U.S. Olympic Marathon Trials, qualifying for the 2024 Paris Olympics, where he placed 8th. He ran much of the race in Paris with his training partner, Clayton Young, who finished ninth.
Although Mantz's personal best was the 56th fastest in the field, he produced an eighth place finish in the marathon at the 2024 Paris Olympics. In the lead up to the Olympics, Mantz suffered a two inch tear in one of his quad muscles. While recovering from the injury, he swam up to 10,000 yards in one day and worked on the hills he would face in Paris by running uphill and getting driven downhill in repetition. In his first marathon since the Olympic Games, Mantz placed sixth at the 2024 New York City Marathon. His time of 2:09:00 was the fastest for an American man since Alberto Salazar in 1981.

### 2025

Mantz set the American record in the half-marathon in January, running 59:17. His record broke the previous best mark set by Ryan Hall in 2007. He set another personal best at the New York City Half-Marathon on March 16, running 57:15; however, the course was not eligible for an American record. He finished second behind Abel Kipchumba of Kenya.

## Achievements
### National championships

| Year | Competition | Venue | Position | Event | Notes |
| 2021 | United States Olympic Trials | Eugene, Oregon | 5th | 10,000 m | 27:59.37 |
| 2021 | United States Olympic Trials | Eugene, Oregon | 8th | 5000 m | 13:32.69 |
| 2021 | USA Half Marathon Championships | Hardeeville, South Carolina | 1st | Half Marathon | 1:00:55 |
| 2022 | 2022 USA Indoor Track and Field Championships | Spokane, Washington | 4th | 3000 m | 7:49.43 |
| 2022 | 2022 USA Outdoor Track and Field Championships | Eugene, Oregon | 4th | 5000 m | 13:11.81 |
| 2022 | 2022 USA Outdoor Track and Field Championships | Eugene, Oregon | 7th | 10000 m | 28:31.24 |
| 2022 | USATF 8 km Championships | Kingsport, Tennessee | 2nd | 8 km | 22:42 |
| 2022 | USATF 20 km Championships | New Haven, Connecticut | 1st | 20 km | 59:08 |
| 2023 | 2023 USA Outdoor Track and Field Championships | Eugene, Oregon | 6th | 10,000 m | 28:29.36 |
| 2023 | 2023 USA Outdoor Track and Field Championships | Eugene, Oregon | 10th | 5000 m | 13:30.85 |
| 2023 | USATF 20 km Championships | New Haven, Connecticut | 2nd | 20 km | 59:16 |
| 2024 | United States Olympic Trials | Orlando, Florida | 1st | Marathon | 2:09:05 |
| 2024 | United States Olympic Trials | Eugene, Oregon | 6th | 10,000 m | 28:00.90 |

## BYU

Representing BYU Cougars :
| School Year | West Coast Conference Cross Country Championship | NCAA Cross Country Championship | MPSF Indoor Track Championship | NCAA Indoor Track Championship | NCAA Division 1 Outdoor Track Championship |
| 2021-22 Red Shirt-Senior | 1st 23:01.0 | 1st 28:33.1 |
| 2020-21 Senior | 1st 22:54.4 | 1st 29:26.1 | | | 10,000m 2nd 27:42.46 |
| 2019-20 Junior | 1st 23:33.8 | 3rd 30:40.0 | | | |
| 2018-19 Sophomore | 3rd 23:24.7 | 10th 29:17.1 | 3000m 2nd 7:50.90 | 3000m 7th 7:56.72 | 5000m 7th 14:09.20 |
| 2018-19 Sophomore | 3rd 23:24.7 | 10th 29:17.1 | 3000m 2nd 7:50.90 | 5000m 10th 13:51.45 | 10,000m 4th 29:19.93 |
| 2017-18 Freshman | | | 3000m 10th 8:02.75 | | 10,000m 22nd 31:37.34 |
| 2017-18 Freshman | | | 5000m 6th 14:01.96 | | 10,000m 22nd 31:37.34 |

## Sky View High School

| Year | Foot Locker Cross Country Championships | New Balance Indoor Nationals | |
| 2014 | 10th 15:27.0 | |
| 2013-14 | 7th 15:23.0 | 5000m 14:24:33 1st | Brooks PR 2 mile 4th 8:56.62 |
| 2012-13 | 12th 15:32.3 | | Great Southwest Classic 3200 Meters 2nd 9:32.51 |
| Representing Sky View High School at Utah High School Activities Association ||||
| Year | Cross Country class 4 state championship | | Outdoor Track and Field class 4 state championship |
| 2014-15 | 15:18.9 2nd place | | 3200 m 9:03.47 1st |
| 2014-15 | 15:18.9 2nd place | | 1600 m 4:13.68 2nd |
| 2014-15 | 15:18.9 2nd place | | 800 m 1:58.20 10th |
| 2013-14 | 15:11.5 1st place | | 3200 m 8:57.99 1st |
| 2013-14 | 15:11.5 1st place | | 1600 m 4:10.47 1st |
| 2013-14 | 15:11.5 1st place | | 800 m 1:56.80 5th |
| 2012-13 | 15:17.8 3rd place | | 3200 m 9:10.20 2nd |
| 2012-13 | 15:17.8 3rd place | | 1600 m 4:16.08 3rd |
| 2011-12 | 15:40.0 2nd place | | 3200 m 9:18.56 3rd |
| 2011-12 | 15:40.0 2nd place | | 1600 m 4:22.5 7th |