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| Name: | Davidson, Robert |
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| Club: | |||
| Residence: | Riverside, CA | ||
| Year of birth: | 1947 | (Cat. german: M75) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M75) | |
| Nationality: | USA  |
United States | |
| RunnerID: | 280876 | ||
43 search results (39 Events, 6931.734 km). (More)
| 2022 | 1 Event, 59.545 km (More) | ||||
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| 18.-21.02.2022 | Jackpot Ultra Running Festival 72 Hour Race (USA) | 72h | |||
| 59.545 km | Davidson, Robert | *Riverside, CA | Overall: 46 | M: 23 | Cat M70: 2 |
| 2021 | 3 Events, 680.76 km (More) | ||||
| 18.-26.06.2021 | Six Days in the Dome - The Redux (USA) | 6d | |||
| 326.383 km | Davidson, Robert | *Riverside, CA | Overall: 26 | M: 22 | Cat M70: 2 |
| 23.-26.04.2021 | Jackpot Ultra Running Festival 72 Hour Race (USA) | 72h | |||
| 180.568 km | Davidson, Robert | *Riverside, CA | Overall: 11 | M: 6 | Cat M70: 1 |
| 08.-11.04.2021 | Beyond Limits Ultra Race 72 Hour (USA) | 72h | |||
| 173.809 km | Davidson, Robert | *Riverside, CA | Overall: 12 | M: 6 | Cat M70: 1 |
| 2019 | 1 Event, 330.817 km (More) | ||||
| 25.-31.08.2019 | Six Days in the Dome - The Redux (USA) | 6d | |||
| 330.817 km | Davidson, Robert | *Riverside, CA | Overall: 52 | M: 42 | Cat M70: 4 |
| 25.-28.08.2019 | Six Days in the Dome - The Redux - 72h Split (USA) | 72h | |||
| 172.058 km | Davidson, Robert | *Riverside, CA | Overall: 58 | M: 46 | Cat M70: 4 |
| 2018 | 2 Events, 321.868 km (More) | ||||
| 05.-08.04.2018 | Beyond Limits Ultra Race 72 Hour (USA) | 72h | |||
| 160.934 km | Davidson, Robert | *Riverside, CA | Overall: 16 | M: 11 | Cat M70: 2 |
| 16.-18.02.2018 | Jackpot Ultra Running Festival 48 Hour Race (USA) | 48h | |||
| 160.934 km | Davidson, Robert | Overall: 43 | M: 17 | Cat M70: 1 | |
| 2017 | 2 Events, 572.142 km (More) | ||||
| 27.12.2017-02.01.2018 | Across the Years, 6 days (USA) | 6d | |||
| 322.694 km | Davidson, Robert | Overall: 34 | M: 25 | Cat M65: 4 | |
| 31.08.-04.09.2017 | A Race for the Ages (USA) | 83h | |||
| 249.448 km | Davidson, Robert | *Riverside, CA | Overall: 12 | M: 10 | Cat M65: 1 |
| 2016 | 2 Events, 317.039 km (More) | ||||
| 05.-06.11.2016 | Boundiful 24 Hours Endurance Run (USA) | 24h | |||
| 83.685 km | Davidson, Robert | Overall: 8 | M: 6 | Cat M65: 2 | |
| 01.-05.09.2016 | A Race for the Ages (USA) | 85h | |||
| 233.354 km | Davidson, Robert | *Riverside, CA | Overall: 19 | M: 16 | Cat M65: 4 |
| 2015 | 2 Events, 501.873 km (More) | ||||
| 28.12.2015-03.01.2016 | Across the Years, 6 days (USA) | 6d | |||
| 418.992 km | Davidson, Robert | *Riverside, CA | Overall: 22 | M: 14 | Cat M65: 3 |
| 17.-18.10.2015 | 50-Mile Endurance Challenge Urban Ultramarathon (USA) | 51.5mi | |||
| 15:30:00 h | Davidson, Robert | *Riverside, CA | Overall: 15 | M: 4 | Cat M65: 1 |
| 2014 | 2 Events, 606.384 km (More) | ||||
| 06.12.2014 | Jester's World Record Run (USA) | 100mi | |||
| 30:11:00 h | Davidson, Robert | *Riverside, CA | Overall: 6 | M: 4 | Cat M65: 1 |
| 04.-10.08.2014 | Six Days in the Dome (USA) | 6d | |||
| 445.450 km | Davidson, Robert | *Riverside, CA | Overall: 23 | M: 17 | Cat M65: 3 |
| 04.-06.08.2014 | Six Days in the Dome - 48h Split (USA) | 48h | |||
| 194.811 km | Davidson, Robert | *Riverside, CA | Overall: 25 | M: 20 | Cat M65: 3 |
| 04.-05.08.2014 | Six Days in the Dome - 24h Split (USA) | 24h | |||
| 108.357 km | Davidson, Robert | *Riverside, CA | Overall: 31 | M: 23 | Cat M65: 3 |
| 2013 | 3 Events, 581.721 km (More) | ||||
| 28.12.2013-03.01.2014 | Across the Years, 6 days (USA) | 6d | |||
| 454.473 km | Davidson, Robert | *Riverside, CA | Overall: 17 | M: 14 | Cat M65: 2 |
| 25.05.2013 | Nanny Goat 12 Hour Race (USA) | 12h | |||
| 77.248 km | Davidson, Robert | *Riverside, CA | Overall: 43 | M: 26 | Cat M65: 1 |
| 27.01.2013 | Calico Trail Run 50 km (USA) | 50km | |||
| 7:53:03 h | Davidson, Robert | Overall: 82 | M: 64 | Cat M65: 5 | |
| 1995 | 1 Event, 80.467 km (More) | ||||
| 04.11.1995 | Just Another Mad Dog 50 Mile (USA) | 50mi | |||
| 5:29:56 h | Davidson, Robert | Overall: 5 | M: 5 | Cat M45: 3 | |
| 1991 | 1 Event, 50 km (More) | ||||
| 23.03.1991 | Crown King Scramble 50K (USA) | 50km | |||
| 7:05:40 h | Davidson, Robert | Overall: 44 | M: 40 | Cat M40: 8 | |
| 1990 | 1 Event, 50 km (More) | ||||
| 24.03.1990 | Crown King Scramble 50K (USA) | 50km | |||
| 6:27:59 h | Davidson, Robert | Overall: 30 | M: 25 | Cat M40: 5 | |
| 1989 | 1 Event, 50 km (More) | ||||
| 18.03.1989 | Crown King Scramble 50K (USA) | 50km | |||
| 6:35:42 h | Davidson, Robert | Overall: 24 | M: 21 | Cat M40: 7 | |
| 1988 | 1 Event, 50 km (More) | ||||
| 19.03.1988 | Crown King Scramble 50K (USA) | 50km | |||
| 6:40:43 h | Davidson, Robert | Overall: 18 | M: 14 | Cat M40: 3 | |
| 1987 | 1 Event, 50 km (More) | ||||
| 21.03.1987 | Crown King Scramble 50K (USA) | 50km | |||
| 7:01:59 h | Davidson, Robert | Overall: 21 | M: 19 | Cat M35: 4 | |
| 1984 | 3 Events, 1375.404 km (More) | ||||
| 27.12.1984-02.01.1985 | Rocky Mountain Six-Day (USA) | 6d | |||
| 687.189 km | Davidson, Robert | *HI | Overall: 6 | M: 6 | Cat M35: 2 |
| 27.-29.12.1984 | Rocky Mountain Six-Day - 48h Split (USA) | 48h | |||
| 276.807 km | Davidson, Robert | Overall: 4 | M: 4 | Cat M35: 1 | |
| 14.-20.04.1984 | The New Astley Belt Six Day Race (USA) | 6d | |||
| 588.215 km | Davidson, Robert | *HI | Overall: 5 | M: 5 | Cat M35: 3 |
| 08.01.1984 | Saddle Road 100 km Ultramarathon (USA) | 100km | |||
| 9:43:07 h | Davidson, Robert | Overall: 1 | M: 1 | Cat M35: 1 | |
| 1983 | 6 Events, 635.728 km (More) | ||||
| 19.11.1983 | Hana Road Ultramarathon (USA) | 52mi | |||
| 7:45:00 h | Davidson, Robert | Overall: 1 | M: 1 | Cat M35: 1 | |
| 21.08.1983 | West Maui 100 Km Run (USA) | 100km | |||
| 10:23:06 h | Davidson, Robert | Overall: 1 | M: 1 | Cat M35: 1 | |
| 31.07.1983 | Haleakala Run to the Sun (USA) | 37.5mi | |||
| 7:11:12 h | Davidson, Robert | Overall: 61 | M: 57 | Cat M35: 16 | |
| 01.-03.07.1983 | 48 Hour Run, Walk or Crawl Pedestrian Race (USA) | 48h | |||
| 211.226 km | Davidson, Robert | *HI | Overall: 5 | M: 4 | Cat M35: 2 |
| 17.04.1983 | Hawaiian 50 Miler (USA) | 50mi | |||
| 6:18:45 h | Davidson, Robert | Overall: 2 | M: 2 | Cat M35: 1 | |
| 09.01.1983 | Saddle Road 100 km Ultramarathon (USA) | 100km | |||
| 9:31:54 h | Davidson, Robert | Overall: 3 | M: 3 | Cat M35: 2 | |
| 1982 | 2 Events, 221.284 km (More) | ||||
| 25.07.1982 | Haleakala Run to the Sun (USA) | 37.5mi | |||
| 5:40:58 h | Davidson, Robert | Overall: 5 | M: 5 | Cat M23: 2 | |
| 30.-31.05.1982 | Hawaii Festival of Running - 100 Mile Run (USA) | 100mi | |||
| 17:13:35 h | Davidson, Robert | Overall: 2 | M: 2 | Cat M23: 1 | |
| 1981 | 1 Event, 80.467 km (More) | ||||
| 29.03.1981 | Schofield 50 Miler (USA) | 50mi | |||
| 7:22:26 h | Davidson, Robert | Overall: 10 | M: 10 | Cat M23: 4 | |
| 1980 | 2 Events, 235.768 km (More) | ||||
| 28.-29.06.1980 | Western States 100 Mile Endurance Run (USA) | 93.5mi | |||
| 26:21:08 h | Davidson, Robert | Overall: 73 | M: 67 | Cat M23: 30 | |
| 17.02.1980 | Santa Monica Mountains Relays (USA) | 53mi | |||
| 12:19:00 h | Davidson, Robert | *CA | Overall: 18 | M: 18 | Cat M23: 6 |
| 1979 | 1 Event, 80.467 km (More) | ||||
| 15.12.1979 | Striders Santa Monica Track 50 mi (USA) | 50mi | |||
| 6:59:06 h | Davidson, Robert | Overall: 11 | M: 11 | Cat M23: 5 | |
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 | 2022 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 1995 | 1991 | 1990 | 1989 | 1988 | 1987 | 1984 | 1983 | 1982 | 1981 | 1980 | 1979 | |
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| 50mi | 6:59:06 |
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6:59:06
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| 24h | 108.357 |
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108.357
(2400/415) |
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| 48h | 276.807 |
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160.934
(354/100) |
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194.811
(250/54) |
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276.807
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211.226
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| 6d | 687.189 |
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326.383
(126/39) |
330.817
(273/66) |
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322.694
(245/43) |
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418.992
(199/18) |
445.450
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454.473
(164/21) |
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687.189
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Comparison table
Comparison of performances in races with multiple participations
| 2022 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 1995 | 1991 | 1990 | 1989 | 1988 | 1987 | 1984 | 1983 | 1982 | 1981 | 1980 | 1979 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crown King Scramble 50K | 5 | 7:05:40 | 6:27:59 | 6:35:42 | 6:40:43 | 7:01:59 | ||||||||||||||||
| Across the Years, 6 days | 3 | 322.694 | 418.992 | 454.473 | ||||||||||||||||||
| Jackpot Ultra Running Festival 72 Hour Race | 2 | 59.545 | 180.568 | |||||||||||||||||||
| A Race for the Ages | 2 | 249.448 | 233.354 | |||||||||||||||||||
| Six Days in the Dome - The Redux | 2 | 326.383 | 330.817 | |||||||||||||||||||
| Haleakala Run to the Sun | 2 | 7:11:12 | 5:40:58 | |||||||||||||||||||
| Beyond Limits Ultra Race 72 Hour | 2 | 173.809 | 160.934 | |||||||||||||||||||
| Saddle Road 100 km Ultramarathon | 2 | 9:43:07 | 9:31:54 |