JM
Justin Mahieu
BELMenBirth dateAug 12, 1985
Height-
Weight-
Justin Mahieu is a Belgium middle-distance runner, born on August 12, 1985. He competes primarily in the 800m, 1500m and 3000m.
His personal bests include 1:56.20 in the 800m, 3:55.00 in the 1500m, 8:17.74 in the 3000m, 14:31.15 in the 5000m and 1:04:44 in the Semi. He is currently active on the international athletics circuit, representing Belgium.
Key facts
Marathon
2:13:39
10 Kilometres Road
29:24
2026 season best
8:33.22
Jan 24, 2026 · Complexe Sportif de Blocry, Louvain-La-Neuve (BEL) (i)
Age
41 years old
As of Sep 15, 2026: Marathon 2:13:39, 10 Kilometres Road 29:24, 2026 season best 8:33.22 (Jan 24, 2026, Complexe Sportif de Blocry, Louvain-La-Neuve (BEL) (i)) · Last competition: BIG10, Rotterdam, Sep 5, 2026, 32:14 · 41 years old
PB
Personal bests
1:56.20
3:55.00
8:17.74
14:31.15
1:04:44
2:13:39
9:36.82
14:28
3:58.44
8:26.06
29:24
49:12
24:51
3:58.44
8:26.06
Performance Charts
Season bests
| Season | Discipline | Result | Wind | Date | Trend | Competitions |
|---|---|---|---|---|---|---|
| 2026 | 3000m | 8:33.22 | - | Jan 24, 2026 | ↑ | Allianz Championnats LBFA indoor TC - Juniors (+VAL marche TC) |
| 2026 | 3000Metres | 8:33.22 | - | Jan 24, 2026 | ↑ | Allianz Championnats LBFA indoor TC - Juniors (+VAL marche TC) |
| 2026 | 3000m-short-track | 8:33.22 | - | Jan 24, 2026 | ↑ | Allianz Championnats LBFA indoor TC - Juniors (+VAL marche TC) |
| 2026 | 10Kilometr | 29:24 | - | Jan 11, 2026 | ↑ | 10K Valencia Ibercaja by Kiprun |
| 2026 | Semi | 1:11:18 | - | Feb 1, 2026 | ↓ | TotalEnergies Media Maratón Murcia Costa Cálida, Murcia |
| 2025 | 3000m | 8:17.74 | - | Jul 5, 2025 | ↑ | Dampicourt Speed Night |
| 2025 | 5Kilometre | 14:28 | - | Jun 28, 2025 | - | BIG5 |
| 2025 | 5000m | 14:33.25 | - | May 31, 2025 | ↑ | 9. PUMA NITRO Lange Laufnacht, Carl-Kaufmann-Stadion, Karlsruhe |
| 2025 | 10Kilometr | 31:41 | - | Mar 30, 2025 | ↑ | Les Foulées Valenciennoises |
| 2025 | Semi | 1:06:07 | - | Sep 28, 2025 | ↓ | Route du Vin Semi-Marathon, Remich |
| 2025 | Marathon | 2:27:06 | - | Dec 7, 2025 | ↓ | Maratón Valencia Trinidad Alfonso Zurich, Valencia |
| 2024 | 1500m | 4:02.24 | - | Jul 6, 2024 | ↓ | Dampicourt Speed Night |
| 2024 | 10Kilometr | 29:29 | - | Sep 8, 2024 | ↑ | BIG 10 |
| 2024 | Semi | 1:04:53 | - | Sep 15, 2024 | ↓ | Copenhagen Half Marathon |
| 2024 | Marathon | 2:27:24 | - | Oct 13, 2024 | ↓ | ASML Marathon Eindhoven |
| 2023 | 10Kilometr | 29:47 | - | Sep 3, 2023 | ↑ | BIG 10 |
| 2023 | Semi | 1:06:40 | - | Mar 12, 2023 | ↓ | Runners Lab Half Marathon Ghent, Gent - Elite Event |
| 2022 | 10Kilometr | 29:35 | - | Sep 11, 2022 | ↑ | - |
| 2022 | Semi | 1:06:39 | - | Oct 2, 2022 | ↓ | Amgen Singelloop Breda, Breda |
| 2022 | Marathon | 2:13:39 | - | Dec 4, 2022 | ↓ | Maraton Valencia Trinidad Alfonso EDP |
| 2020 | Semi | 1:04:44 | - | Mar 8, 2020 | ↓ | NN CPC Loop Den Haag |
| 2019 | 8Kilometre | 24:51 | - | Dec 31, 2019 | - | Bitburger 0,0% Silvesterlauf |
| 2019 | 10Kilometr | 30:33 | - | Aug 31, 2019 | ↑ | 10 km, Lille |
| 2019 | 10MilesRoa | 49:12 | - | Sep 22, 2019 | ↑ | Dam tot Damloop |
| 2019 | Semi | 1:06:04 | - | Mar 31, 2019 | ↓ | Venloop Half Marathon, Venlo - Dutch Half Marathon Ch. |
| 2019 | Marathon | 2:14:43 | - | Sep 29, 2019 | ↓ | BMW BERLIN-MARATHON, Berlin |
| 2018 | 10MilesRoa | 51:12 | - | Sep 23, 2018 | ↑ | Dam tot Damloop |
| 2018 | Semi | 1:09:23 | - | Oct 7, 2018 | ↓ | Breda Singelloop |
| 2017 | Semi | 1:07:49 | - | Mar 26, 2017 | ↓ | Venlo (NED) |
| 2017 | 25Kilometr | 1:20:56 | - | Feb 5, 2017 | - | - |
| 2017 | Marathon | 2:20:06 | - | Apr 9, 2017 | ↓ | Rotterdam (NED) |
| 2016 | 5000m | 15:12.20 | - | May 15, 2016 | ↑ | Forest (BEL) |
| 2016 | Semi | 1:06:24 | - | Mar 6, 2016 | ↓ | The Hague (NED) |
| 2016 | Marathon | 2:18:13 | - | Apr 10, 2016 | ↓ | Rotterdam (NED) |
| 2015 | 3000m | 8:29.59 | - | Jun 24, 2015 | ↑ | Ertvelde (BEL) |
| 2015 | 3000Metres | 8:30.11 | - | Jan 10, 2015 | ↑ | Kirchberg, Luxembourg (LUX) (i) |
| 2015 | 3000m-short-track | 8:30.11 | - | Jan 10, 2015 | ↑ | Kirchberg, Luxembourg (LUX) (i) |
| 2015 | 5000m | 14:38.13 | - | May 27, 2015 | ↑ | Koblenz (GER) |
| 2015 | Semi | 1:07:15 | - | Mar 8, 2015 | ↓ | The Hague (NED) |
| 2014 | 3000Metres | 8:27.53 | - | Jan 11, 2014 | ↑ | Kirchberg, Luxembourg (LUX) (i) |
| 2014 | 3000m | 8:27.53 | - | Jan 11, 2014 | ↑ | Kirchberg, Luxembourg (LUX) (i) |
| 2014 | 3000m-short-track | 8:27.53 | - | Jan 11, 2014 | ↑ | Kirchberg, Luxembourg (LUX) (i) |
| 2014 | 3000mSt | 9:36.82 | - | Jul 27, 2014 | - | Bruxelles (BEL) |
| 2014 | 5000m | 14:31.15 | - | May 28, 2014 | ↑ | Koblenz (GER) |
| 2013 | 1500m | 4:00.49 | - | Jun 8, 2013 | ↓ | Kessel-Lo (BEL) |
| 2013 | 3000m | 8:24.45 | - | Jul 6, 2013 | ↑ | Oordegem (BEL) |
| 2013 | 3000m-short-track | 8:42.00 | - | Jan 26, 2013 | ↑ | Gent (BEL) (i) |
| 2013 | 3000Metres | 8:42.00 | - | Jan 26, 2013 | ↑ | Gent (BEL) (i) |
| 2013 | 5000m | 14:38.35 | - | Jul 13, 2013 | ↑ | Heusden-Zolder (BEL) |
| 2013 | 10Kilometr | 31:23 | - | Apr 21, 2013 | ↑ | Korschenbroich (GER) |
| 2012 | 3000m-short-track | 8:31.49 | - | Feb 26, 2012 | ↑ | Belgian Indoor Championships |
| 2012 | 3000m | 8:31.49 | - | Feb 26, 2012 | ↑ | Gent (BEL) (i) |
| 2012 | 3000Metres | 8:31.49 | - | Feb 26, 2012 | ↑ | Gent (BEL) (i) |
| 2012 | 5000m | 14:52.58 | - | Apr 6, 2012 | ↑ | San Francisco, CA (USA) |
| 2011 | 800m | 1:58.08 | - | Jun 4, 2011 | ↓ | Oordegem (BEL) |
| 2011 | 1500m | 3:55.00 | - | Jul 2, 2011 | ↓ | Oordegem (BEL) |
| 2011 | 3000m-short-track | 8:26.06 | - | Jan 29, 2011 | ↑ | Gent (BEL) (i) |
| 2011 | 3000Metres | 8:26.06 | - | Jan 29, 2011 | ↑ | Gent (BEL) (i) |
| 2011 | 3000m | 8:26.06 | - | Jan 29, 2011 | ↑ | Gent (BEL) (i) |
| 2010 | 3000m-short-track | 8:36.94 | - | Jan 30, 2010 | ↑ | Gent (BEL) (i) |
| 2010 | 3000m | 8:36.94 | - | Jan 30, 2010 | ↑ | Gent (BEL) (i) |
| 2010 | 3000Metres | 8:36.94 | - | Jan 30, 2010 | ↑ | Gent (BEL) (i) |
| 2010 | 5000m | 14:53.00 | - | Apr 17, 2010 | ↑ | Auburn, AL (USA) |
| 2009 | 800m | 1:56.20 | - | May 9, 2009 | ↓ | Nivelles (BEL) |
| 2009 | 1500m | 3:56.44 | - | Jul 4, 2009 | ↓ | Oordegem (BEL) |
| 2009 | 1500m-short-track | 3:58.44 | - | Feb 22, 2009 | - | Belgian Indoor Championships |
| 2009 | 1500Metres | 3:58.44 | - | Feb 22, 2009 | - | Gent (BEL) (i) |
2026
7 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
10Kilometr | 32:14 | - | Sep 5 | BIG10, Rotterdam |
10Kilometr | 29:31 | - | Apr 12 | Les Foulées Valenciennoises |
10Kilometr | 29:47 | - | Feb 22 | 10K Facsa Castellón, Castellón |
Semi | 1:11:18 | - | Feb 1 | TotalEnergies Media Maratón Murcia Costa Cálida, Murcia |
3000m-short-track | 8:33.22 | - | Jan 24 | Allianz Championnats LBFA indoor TC - Juniors (+VAL marche TC) |
3000Metres | 8:33.22 | - | Jan 24 | Allianz Championnats LBFA indoor TC - Juniors (+VAL marche TC) |
10Kilometr | 29:24 | - | Jan 11 | 10K Valencia Ibercaja by Kiprun |
2025
12 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Marathon | 2:27:06 | - | Dec 7 | Maratón Valencia Trinidad Alfonso Zurich, Valencia |
Semi | 1:06:07 | - | Sep 28 | Route du Vin Semi-Marathon, Remich |
3000m | 8:17.74 | - | Jul 5 | Dampicourt Speed Night |
5Kilometre | 14:28 | - | Jun 28 | BIG5 |
5Kilometre | 14:28 | - | Jun 28 | BIG5 |
3000m | 8:18.30 | - | Jun 21 | Ciney Golden Series, Stade Rebompré, Ciney |
3000m | 8:21.81 | - | Jun 6 | Wolu Track Classic, Stade Fallon, Sint-Lambrechts-Woluwé |
5000m | 14:33.25 | - | May 31 | 9. PUMA NITRO Lange Laufnacht, Carl-Kaufmann-Stadion, Karlsruhe |
5000m | 14:33.25 | - | May 31 | 9. PUMA NITRO Lange Laufnacht, Carl-Kaufmann-Stadion, Karlsruhe |
5000m | 14:45.39 | - | May 18 | First League Interclub M+V |
10Kilometr | 31:41 | - | Mar 30 | Les Foulées Valenciennoises |
Semi | 1:09:50 | - | Mar 9 | Runners' lab Bashir's Run |
2024
8 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Semi | 1:07:11 | - | Oct 27 | Medio Maratón Valencia Trinidad Alfonso Zurich |
Marathon | 2:27:24 | - | Oct 13 | ASML Marathon Eindhoven |
Semi | 1:04:53 | - | Sep 15 | Copenhagen Half Marathon |
10Kilometr | 29:29 | - | Sep 8 | BIG 10 |
10Kilometr | 29:29 | - | Sep 8 | BIG 10 |
1500m | 4:02.24 | - | Jul 6 | Dampicourt Speed Night |
Semi | 1:04:55 | - | Jan 28 | Medio Maraton Sevilla |
10Kilometr | 30:11 | - | Jan 14 | 10K Valencia Ibercaja |
2023
5 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
10Kilometr | 29:47 | - | Sep 3 | BIG 10 |
10Kilometr | 29:47 | - | Sep 3 | BIG 10 |
10000m | DNF | - | Apr 22 | French 10,000m Championships |
Semi | 1:06:40 | - | Mar 12 | Runners Lab Half Marathon Ghent, Gent - Elite Event |
10Kilometr | 30:04 | - | Feb 12 | Groet uit Schoorl Run |
2022
3 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Marathon | 2:13:39 | - | Dec 4 | Maraton Valencia Trinidad Alfonso EDP |
Semi | 1:06:39 | - | Oct 2 | Amgen Singelloop Breda, Breda |
10Kilometr | 29:35 | - | Sep 11 | International Korschenbroich City Run, Korschenbroich |
2020
1 performance| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Semi | 1:04:44 | - | Mar 8 | NN CPC Loop Den Haag |
2019
7 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
8Kilometre | 24:51 | - | Dec 31 | Bitburger 0,0% Silvesterlauf |
Semi | 1:07:10 | - | Oct 6 | Amgen Singelloop Breda, Breda |
Marathon | 2:14:43 | - | Sep 29 | BMW BERLIN-MARATHON, Berlin |
10MilesRoa | 49:12 | - | Sep 22 | Dam tot Damloop |
10Kilometr | 30:33 | - | Aug 31 | 10 km, Lille |
Semi | 1:06:04 | - | Mar 31 | Venloop Half Marathon, Venlo - Dutch Half Marathon Ch. |
10Kilometr | 30:35 | - | Mar 24 | Parelloop |
2018
2 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Semi | 1:09:23 | - | Oct 7 | Breda Singelloop |
10MilesRoa | 51:12 | - | Sep 23 | Dam tot Damloop |
2017
5 performances| Discipline | Result | Wind | Date | Competitions |
|---|---|---|---|---|
Marathon | 2:20:06 | - | Apr 9 | Rotterdam Marathon, Rotterdam |
Semi | 1:07:49 | - | Mar 26 | Venlo Half Marathon, Venlo |
Semi | 1:10:06 | - | Mar 12 | The Hague City-Pier-City Half Marathon, The Hague |
25Kilometr | 1:20:56 | - | Feb 5 | Apeldoorn 25 km, Apeldoorn |
Semi | 1:09:00 | - | Jan 8 | Egmond aan Zee Half Marathon, Egmond aan Zee |
Showing 1 - 50 of 109
Honours
No medals
FAQ
Frequently asked questions
What is Justin Mahieu's Marathon personal best?
Justin Mahieu's Marathon personal best is 2:13:39, set on Dec 4, 2022 in Valencia (ESP).
Which events does Justin Mahieu compete in?
Justin Mahieu competes in the Marathon and 10 Kilometres Road.
How did Justin Mahieu perform in 2026?
2026 season best: 8:33.22, set on Jan 24, 2026 in Complexe Sportif de Blocry, Louvain-La-Neuve (BEL) (i). Last competition: BIG10, Rotterdam on Sep 5, 2026, 32:14.