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| Name: | Dufour, John |
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| Club: | |||
| Residence: | Carrollton, GA | ||
| Year of birth: | 1970 | (Cat. german: M55) | |
| Date of birth: | 28.10.1970 | (Cat. internat.: M55) | |
| Nationality: | USA  |
United States | |
| RunnerID: | 100041 | ||
53 search results (53 Events, 7345.677 km). (More)
| 2025 | 4 Events, 617.324 km (More) | ||||
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| 01.-02.11.2025 | Pinhoti 100 Mile (USA) | 100mi | |||
| 30:00:29 h | Dufour, John | *Carrollton, GA | Overall: 94 | M: 78 | Cat M55: 5 |
| 19.-20.09.2025 | The Georgia Jewel 100 Mile Run (USA) | 100mi | |||
| 30:25:48 h | Dufour, John | *Carrollton, GA | Overall: 24 | M: 21 | Cat M50: 1 |
| 11.-13.07.2025 | Merrill's Mile 48 Hour Run (USA) | 48h | |||
| 134.522 km | Dufour, John | *Carrollton, GA | Overall: 56 | M: 44 | Cat M50: 1 |
| 12.-13.04.2025 | Chief Ladiga 100 (USA) | 100mi | |||
| 26:09:20 h | Dufour, John | *Carrollton, GA | Overall: 25 | M: 18 | Cat M50: 3 |
| 2024 | 4 Events, 669.864 km (More) | ||||
| 02.-03.11.2024 | Pinhoti 100 Mile (USA) | 100mi | |||
| 29:21:51 h | Dufour, John | *Carrollton, GA | Overall: 96 | M: 86 | Cat M50: 6 |
| 01.-02.06.2024 | Southern Discomfort 30 Hour Race (USA) | 30h | |||
| 187.062 km | Dufour, John | *Carrollton, GA | Overall: 1 | M: 1 | Cat M50: 1 |
| 13.-14.04.2024 | Chief Ladiga 100 (USA) | 100mi | |||
| 26:18:59 h | Dufour, John | *Carrollton, GA | Overall: 28 | M: 23 | Cat M50: 2 |
| 03.-04.02.2024 | Forgotten Florida 100 Mile Race (USA) | 100mi | |||
| 28:27:01 h | Dufour, John | *Carrollton, GA | Overall: 21 | M: 18 | Cat M50: 1 |
| 2023 | 5 Events, 737.802 km (More) | ||||
| 01.-03.12.2023 | Blood Rock 100 Mile Endurance Race (USA) | 100mi | |||
| 40:07:09 h | Dufour, John | *Carrollton, GA | Overall: 24 | M: 21 | Cat M50: 2 |
| 15.-16.09.2023 | The Georgia Jewel 100 Mile Run (USA) | 100mi | |||
| 29:33:34 h | Dufour, John | *Carrollton, GA | Overall: 23 | M: 21 | Cat M50: 1 |
| 15.-16.04.2023 | Chief Ladiga 100 (USA) | 100mi | |||
| 26:20:03 h | Dufour, John | *Carrollton, GA | Overall: 22 | M: 18 | Cat M50: 2 |
| 25.-26.03.2023 | Lake Martin 100 Mile Endurance Race (USA) | 100mi | |||
| 30:05:47 h | Dufour, John | *Carrollton, GA | Overall: 12 | M: 12 | Cat M50: 3 |
| 18.-19.02.2023 | FarmDaze 24 Hour Run (USA) | 24h | |||
| 94.066 km | Dufour, John | *Carrollton, GA | Overall: 19 | M: 14 | Cat M50: 2 |
| 2022 | 1 Event, 160.934 km (More) | ||||
| 20.-21.05.2022 | Chief Ladiga 100 (USA) | 100mi | |||
| 28:07:22 h | Dufour, John | *Carrollton, GA | Overall: 21 | M: 15 | Cat M50: 1 |
| 2021 | 2 Events, 321.868 km (More) | ||||
| 17.-18.09.2021 | The Georgia Jewel 100 Mile Run (USA) | 100mi | |||
| 33:00:00 h | Dufour, John | *Carrollton, GA | Overall: 46 | M: 39 | Cat M50: 3 |
| 15.-18.04.2021 | Double Top 100 Mile (USA) | 100mi | |||
| 40:48:00 h | Dufour, John | *Carrollton, GA | Overall: 7 | M: 6 | Cat M50: 3 |
| 2020 | 3 Events, 407.742 km (More) | ||||
| 05.12.2020 | Cloudland Canyon 50 Mile Race (USA) | 50mi | |||
| 12:48:30 h | Dufour, John | *Carrollton, GA | Overall: 55 | M: 41 | Cat M50: 4 |
| 20.-21.09.2020 | The Georgia Jewel 100 Mile Run (USA) | 100mi | |||
| 29:52:28 h | Dufour, John | *Carrollton, GA | Overall: 45 | M: 39 | Cat M45: 5 |
| 08.-09.08.2020 | Southern Discomfort 30 Hour Race (USA) | 30h | |||
| 166.341 km | Dufour, John | *Carrollton, GA | Overall: 3 | M: 3 | Cat M45: 1 |
| 2019 | 3 Events, 441.274 km (More) | ||||
| 02.-03.11.2019 | Pinhoti 100 Mile (USA) | 100mi | |||
| 30:31:36 h | Dufour, John | *Carrollton, GA | Overall: 147 | M: 122 | Cat M45: 25 |
| 27.-28.07.2019 | Southern Discomfort 30 Hour Race (USA) | 30h | |||
| 119.406 km | Dufour, John | *Carrollton, GA | Overall: 7 | M: 4 | Cat M45: 1 |
| 16.-17.03.2019 | The Pistol 100 Mile Ultra Run (USA) | 100mi | |||
| 26:42:46 h | Dufour, John | *Carrollton, GA | Overall: 36 | M: 29 | Cat M45: 8 |
| 2018 | 6 Events, 1101.05 km (More) | ||||
| 30.11.-01.12.2018 | Chattanooga 100 Mile Trail Race (USA) | 100mi | |||
| 30:45:03 h | Dufour, John | *Carrollton, GA | Overall: 55 | M: 45 | Cat M45: 11 |
| 22.-23.09.2018 | The Georgia Jewel 100 Mile Run (USA) | 100mi | |||
| 31:51:13 h | Dufour, John | *Carrollton, GA | Overall: 22 | M: 15 | Cat M45: 4 |
| 28.-29.07.2018 | Southern Discomfort 30 Hour Race (USA) | 30h | |||
| 135.446 km | Dufour, John | *Carrollton, GA | Overall: 6 | M: 4 | Cat M45: 2 |
| 30.05.-03.06.2018 | Ozone Endurance Challenge 96 Hour Race (USA) | 96h | |||
| 321.868 km | Dufour, John | *Carrollton, GA | Overall: 5 | M: 5 | Cat M45: 1 |
| 17.-18.03.2018 | Lake Martin 100 Mile Ultra Trail Race (USA) | 100mi | |||
| 29:20:59 h | Dufour, John | *Carrollton, GA | Overall: 15 | M: 10 | Cat M45: 1 |
| 03.-04.02.2018 | Rocky Raccoon 100 Mile Trail Run (USA) | 100mi | |||
| 28:46:36 h | Dufour, John | *Carrollton, GA | Overall: 156 | M: 124 | Cat M45: 25 |
| 2017 | 8 Events, 1177.614 km (More) | ||||
| 09.-10.12.2017 | One Epic Run 24 Hour Race (USA) | 24h | |||
| 129.713 km | Dufour, John | *Carrollton, GA | Overall: 7 | M: 6 | Cat M45: 2 |
| 14.-15.10.2017 | No Business 100 (USA) | 103mi | |||
| 29:45:19 h | Dufour, John | *Carrollton, GA | Overall: 22 | M: 16 | Cat M45: 3 |
| 23.-24.09.2017 | The Georgia Jewel 100 Mile Run (USA) | 100mi | |||
| 29:33:51 h | Dufour, John | *Carrollton, GA | Overall: 9 | M: 7 | Cat M45: 3 |
| 26.-27.08.2017 | Yeti Snakebite 50 km (USA) | 50km | |||
| 6:16:59 h | Dufour, John | *Carrollton, GA | Overall: 27 | M: 22 | Cat M45: 7 |
| 04.-05.08.2017 | Holston River Endurance Challenge - 100 Mile Run (USA) | 100mi | |||
| 28:59:05 h | Dufour, John | *Carrollton, GA | Overall: 3 | M: 2 | Cat M45: 2 |
| 01.-04.06.2017 | Ozone Endurance Challenge 72 Hour Race (USA) | 72h | |||
| 299.337 km | Dufour, John | *Carrollton, GA | Overall: 5 | M: 3 | Cat M45: 1 |
| 18.-19.03.2017 | Lake Martin 100 Mile Ultra Trail Race (USA) | 100mi | |||
| 26:51:44 h | Dufour, John | *Carrollton, GA | Overall: 12 | M: 11 | Cat M45: 2 |
| 25.02.2017 | Mount Cheaha 50K UltraMarathon Race (USA) | 50km | |||
| 7:50:19 h | Dufour, John | *Carrollton, GA | Overall: 154 | M: 124 | Cat M45: 23 |
| 2016 | 8 Events, 945.013 km (More) | ||||
| 04.12.2016 | Pine Mountain Trail Run (USA) | 46mi | |||
| 11:21:04 h | Dufour, John | Overall: 35 | M: 32 | Cat M45: 6 | |
| 05.-06.08.2016 | Holston River Endurance Challenge - 100 Mile Run (USA) | 100mi | |||
| 27:12:27 h | Dufour, John | *Carrollton, GA | Overall: 4 | M: 4 | Cat M45: 1 |
| 04.-05.06.2016 | Ozone Endurance Challenge 24 Hour Race (USA) | 24h | |||
| 157.715 km | Dufour, John | *Carrollton, GA | Overall: 2 | M: 1 | Cat M45: 1 |
| 20.-21.05.2016 | Rock/Creek Thunder Rock 100 Mile Trail Race (USA) | 100mi | |||
| 27:50:37 h | Dufour, John | *Carrollton, GA | Overall: 32 | M: 28 | Cat M45: 3 |
| 02.-03.04.2016 | Blind Pig 100 Mile Ultra Marathon (USA) | 100mi | |||
| 22:07:12 h | Dufour, John | *Carrollton, GA | Overall: 8 | M: 7 | Cat M45: 1 |
| 27.02.2016 | Mount Cheaha 50K UltraMarathon Race (USA) | 50km | |||
| 6:59:59 h | Dufour, John | *Carrollton, GA | Overall: 57 | M: 52 | Cat M45: 10 |
| 06.-07.02.2016 | Iron Horse 100 km Endurance Run (USA) | 100km | |||
| 15:52:58 h | Dufour, John | *GA | Overall: 32 | M: 18 | Cat M45: 1 |
| 09.01.2016 | Cloudland Canyon 50 Mile Race (USA) | 50mi | |||
| 12:28:17 h | Dufour, John | *Carrollton, GA | Overall: 76 | M: 60 | Cat M45: 15 |
| 2015 | 4 Events, 323.019 km (More) | ||||
| 06.12.2015 | Pine Mountain Trail Run (USA) | 46mi | |||
| 10:57:48 h | Dufour, John | Overall: 37 | M: 32 | Cat M45: 6 | |
| 21.11.2015 | Duncan Ridge Trail 50 km Race (USA) | 50km | |||
| 10:20:01 h | Dufour, John | *Carrollton, GA | Overall: 57 | M: 48 | Cat M45: 7 |
| 26.-27.09.2015 | Hinson Lake 24 Hour Ultra Classic (USA) | 24h | |||
| 118.523 km | Dufour, John | Overall: 31 | M: 20 | Cat M40: 7 | |
| 30.08.2015 | Yeti Snakebite 50 Miles (USA) | 50mi | |||
| 10:59:38 h | Dufour, John | *Carrollton, GA | Overall: 42 | M: 29 | Cat M40: 10 |
| 2011 | 2 Events, 180.724 km (More) | ||||
| 24.-25.09.2011 | Hinson Lake 24 Hour Ultra Classic (USA) | 24h | |||
| 80.724 km | Dufour, John | *Carrollton, GA | Overall: 82 | M: 59 | Cat M40: 5 |
| 19.-20.02.2011 | Iron Horse 100 km Endurance Run (USA) | 100km | |||
| 16:39:50 h | Dufour, John | *Carrollton, GA | Overall: 28 | M: 23 | Cat M40: 3 |
| 2010 | 2 Events, 211.449 km (More) | ||||
| 25.-26.09.2010 | Hinson Lake 24 Hour Ultra Classic (USA) | 24h | |||
| 161.449 km | Dufour, John | *GA | Overall: 10 | M: 7 | Cat M35: 2 |
| 03.04.2010 | SweetH2O 50 km (USA) | 50km | |||
| 7:22:39 h | Dufour, John | *Carrollton, GA | Overall: 72 | M: 59 | Cat M35: 11 |
| 2009 | 1 Event, 50 km (More) | ||||
| 12.12.2009 | Tallahassee Ultra Distance Classic 50K (USA) | 50km | |||
| 5:50:48 h | Dufour, John | *Carrollton, GA | Overall: 26 | M: 15 | Cat M35: 1 |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2011 | 2010 | 2009 | |
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| 50km | 5:50:48 |
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5:50:48
(5272/567) |
| 100mi | 26:42:46 |
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26:42:46
(810/199) |
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28:59:05
(631/193) |
27:12:27
(313/30) |
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| 24h | 118.523 |
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118.523
(2334/355) |
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| 48h | 134.522 |
134.522
(696/187) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2011 | 2010 | 2009 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The Georgia Jewel 100 Mile Run | 6 | 30:25:48 | 29:33:34 | 33:00:00 | 29:52:28 | 31:51:13 | 29:33:51 | ||||||||
| Chief Ladiga 100 | 4 | 26:09:20 | 26:18:59 | 26:20:03 | 28:07:22 | ||||||||||
| Southern Discomfort 30 Hour Race | 4 | 187.062 | 166.341 | 119.406 | 135.446 | ||||||||||
| Lake Martin 100 Mile Ultra Trail Race | 3 | 30:05:47 | 29:20:59 | 26:51:44 | |||||||||||
| Pinhoti 100 Mile | 3 | 30:00:29 | 29:21:51 | 30:31:36 | |||||||||||
| Hinson Lake 24 Hour Ultra Classic | 3 | 118.523 | 80.724 | 161.449 | |||||||||||
| Holston River Endurance Challenge - 100 Mile Run | 2 | 28:59:05 | 27:12:27 | ||||||||||||
| Cloudland Canyon 50 Mile Race | 2 | 12:48:30 | 12:28:17 | ||||||||||||
| Mount Cheaha 50K UltraMarathon Race | 2 | 7:50:19 | 6:59:59 | ||||||||||||
| Pine Mountain Trail Run | 2 | 11:21:04 | 10:57:48 | ||||||||||||
| Iron Horse 100 km Endurance Run | 2 | 15:52:58 | 16:39:50 |