Profile image
Carl Martens
78 races 1207.93 km 27,604m

Activity Totals

Includes all Strava activities, not just races.

Last 4 Weeks YTD All Time
Activities 8 96 1,254
Distance 135.19 km 2075.91 km 15976.25 km
Elevation 7,764m 48,247m 223,656m
Time 26:44:10 245:27:39 1632:39:43
Last 4 Weeks YTD All Time
Activities 0 14 2,368
Distance 0.00 km 114.69 km 22406.31 km
Elevation 0m 420m 141,454m
Time 00:00:00 05:18:17 903:07:59
Last 4 Weeks YTD All Time
Activities 0 1 18
Distance 0.00 km 0.19 km 8.75 km
Elevation 0m 0m 0m
Time 00:00:00 00:09:34 04:16:12

Season Summary

Year Races Distance Elevation
2026 3 199.14 km 6,548m
2025 10 299.16 km 10,337m
2024 10 191.87 km 3,975m
2023 13 188.44 km 3,453m
2022 18 191.70 km 2,467m
2021 12 86.54 km 530m
2020 8 40.98 km 186m
2019 3 5.02 km 67m
2018 1 5.07 km 41m
2017 0 — —
[{"year":2026,"races":3,"distanceMeters":199143.59999999998,"elevation":6548.1},{"year":2025,"races":10,"distanceMeters":299161.1,"elevation":10336.7},{"year":2024,"races":10,"distanceMeters":191873.9,"elevation":3975.4},{"year":2023,"races":13,"distanceMeters":188443.9,"elevation":3453.2999999999997},{"year":2022,"races":18,"distanceMeters":191704.6,"elevation":2467.2000000000003},{"year":2021,"races":12,"distanceMeters":86538.5,"elevation":529.8},{"year":2020,"races":8,"distanceMeters":40979.7,"elevation":185.9},{"year":2019,"races":3,"distanceMeters":5020.1,"elevation":66.9},{"year":2018,"races":1,"distanceMeters":5066.8,"elevation":41},{"year":2017,"races":0,"distanceMeters":0,"elevation":0}]
kilometers

Race Calendar

Less
More
[{"date":"2026-08-01","name":"Pitz Alpine Glacier Trail 45k-Glacier","raceId":19553602795,"athleteId":31111742},{"date":"2026-07-04","name":"Big Chouffe trail 100k","raceId":19179892294,"athleteId":31111742},{"date":"2026-02-22","name":"Bosbokkentrail ultra 50k","raceId":17483361867,"athleteId":31111742},{"date":"2025-10-25","name":"DNF - Grizzly 100k","raceId":16249440544,"athleteId":31111742},{"date":"2025-09-28","name":"Geuzenloop 10k 2025","raceId":15963512077,"athleteId":31111742},{"date":"2025-09-12","name":"🥉 UTML ULTRA-TRAIL","raceId":15794669130,"athleteId":31111742},{"date":"2025-06-29","name":"Buytensportloop 5k","raceId":14950496765,"athleteId":31111742},{"date":"2025-06-29","name":"DNF Buytensportloop 15k","raceId":14949498303,"athleteId":31111742},{"date":"2025-06-23","name":"5' maximaal test","raceId":14893540225,"athleteId":31111742},{"date":"2025-05-10","name":"🇪🇸TRANSVULCANIA 🌋 ULTRATRAIL","raceId":14438012641,"athleteId":31111742},{"date":"2025-05-08","name":"🇪🇸TRANSVULCANIA🌋 VERTICAL UPHILL","raceId":14418256474,"athleteId":31111742},{"date":"2025-03-29","name":"1000m openingswedstrijd 🥇","raceId":14018533719,"athleteId":31111742},{"date":"2025-03-16","name":"Heuvelland Marathon","raceId":13898071353,"athleteId":31111742},{"date":"2024-10-05","name":"Wilhelmina trappen Marathon 10 mijl 🥇","raceId":12578907958,"athleteId":31111742},{"date":"2024-09-29","name":"Geuzenloop Zoetermeer","raceId":12532058267,"athleteId":31111742},{"date":"2024-09-14","name":"UTML LONG TRAIL","raceId":12406428007,"athleteId":31111742},{"date":"2024-07-06","name":"Ekiden Rotterdam etappe 1","raceId":11820468376,"athleteId":31111742},{"date":"2024-04-13","name":"1500m","raceId":11171629268,"athleteId":31111742},{"date":"2024-04-13","name":"3000m openingswedstrijd","raceId":11169336901,"athleteId":31111742},{"date":"2024-03-30","name":"Caubergtrail 30k","raceId":11068561849,"athleteId":31111742},{"date":"2024-03-16","name":"Reeuwijkse Plassenloop 10k","raceId":10971070052,"athleteId":31111742},{"date":"2024-01-21","name":"Halve marathon van Zoetermeer","raceId":10600989054,"athleteId":31111742},{"date":"2024-01-13","name":"Gouwe boscross","raceId":10550257168,"athleteId":31111742},{"date":"2023-12-09","name":"Goudse Kaas en stroopwafel Cross","raceId":10353035962,"athleteId":31111742},{"date":"2023-11-18","name":"Reeuwijkse houtcross 🥉","raceId":10239387949,"athleteId":31111742},{"date":"2023-11-12","name":"Klaverbladloop 15k 🥉","raceId":10204872535,"athleteId":31111742},{"date":"2023-11-04","name":"Floracross","raceId":10158973368,"athleteId":31111742},{"date":"2023-10-29","name":"3PL 🥇","raceId":10123504419,"athleteId":31111742},{"date":"2023-10-07","name":"Trappenloop 10k 🥇","raceId":9992715244,"athleteId":31111742},{"date":"2023-09-24","name":"Geuzenloop halve marathon","raceId":9910908419,"athleteId":31111742},{"date":"2023-09-10","name":"St. Pieterbear trail 18k","raceId":9820438962,"athleteId":31111742},{"date":"2023-09-09","name":"UTML 35K","raceId":9814605624,"athleteId":31111742},{"date":"2023-08-27","name":"3PL 🥇17:08","raceId":9728802540,"athleteId":31111742},{"date":"2023-06-21","name":"5000m Delft 17:01.96","raceId":9310173630,"athleteId":31111742},{"date":"2023-05-13","name":"KVS 45k ","raceId":9062906362,"athleteId":31111742},{"date":"2023-01-29","name":"3PL 🥈","raceId":8469786582,"athleteId":31111742},{"date":"2022-11-19","name":"Reeuwijk cross","raceId":8139554880,"athleteId":31111742},{"date":"2022-11-13","name":"klaverbladloop 10k ","raceId":8111838794,"athleteId":31111742},{"date":"2022-11-05","name":"Floracross Boskoop ","raceId":8072440249,"athleteId":31111742},{"date":"2022-10-30","name":"10k Barendrecht 🥇 😵","raceId":8042062427,"athleteId":31111742},{"date":"2022-10-01","name":"5k Wilhelmina trappen marathon 🥇","raceId":7894145114,"athleteId":31111742},{"date":"2022-09-25","name":"Geuzenloop 🥈","raceId":7864475769,"athleteId":31111742},{"date":"2022-08-28","name":"3PL 🥇","raceId":7713047196,"athleteId":31111742},{"date":"2022-07-31","name":"3PL 🥈","raceId":7557527034,"athleteId":31111742},{"date":"2022-07-10","name":"Veluwe zoomtrail 34k","raceId":7445571406,"athleteId":31111742},{"date":"2022-06-26","name":"3 Plassenloop 🥈","raceId":7370233767,"athleteId":31111742},{"date":"2022-06-12","name":"800m competitie","raceId":7296341880,"athleteId":31111742},{"date":"2022-05-15","name":"Koning van Spanje trail 30k 🥵","raceId":7146310464,"athleteId":31111742},{"date":"2022-05-13","name":"Koning van Spanje night trail 16k 🥈","raceId":7137260747,"athleteId":31111742},{"date":"2022-04-10","name":"4x400m ploegen competitie","raceId":6960587555,"athleteId":31111742},{"date":"2022-04-10","name":"3000m ploegen competitie","raceId":6960588138,"athleteId":31111742},{"date":"2022-04-02","name":"800m openingswedstrijd","raceId":6920864788,"athleteId":31111742},{"date":"2022-03-05","name":"Petzl night trail 🥉","raceId":6778423586,"athleteId":31111742},{"date":"2022-02-26","name":"Otterlo trail 25k","raceId":6740879276,"athleteId":31111742},{"date":"2021-12-11","name":"Gouda Cross","raceId":6370604991,"athleteId":31111742},{"date":"2021-12-04","name":"Amerongse berg wintertrail 20k","raceId":6341436378,"athleteId":31111742},{"date":"2021-11-14","name":"Klaverblad loop 5k ","raceId":6255969938,"athleteId":31111742},{"date":"2021-11-12","name":"Veldloop met school 🥇","raceId":6247200972,"athleteId":31111742},{"date":"2021-10-31","name":"Houttrail Delft 13k die 16k werd.....","raceId":6191062956,"athleteId":31111742},{"date":"2021-10-02","name":"1500M clubkampioenschappen","raceId":6053271105,"athleteId":31111742},{"date":"2021-05-26","name":"800 testloop","raceId":5363022171,"athleteId":31111742},{"date":"2021-04-17","name":"1500m onderlinge wedstrijd ","raceId":5144295413,"athleteId":31111742},{"date":"2021-03-26","name":"heel rustig lang duurloopje","raceId":5013495161,"athleteId":31111742},{"date":"2021-03-17","name":"testloopje 800m","raceId":4963765163,"athleteId":31111742},{"date":"2021-02-28","name":"MTB Zoetermeer Jeugdroute KOM poging (👑!)","raceId":4866720776,"athleteId":31111742},{"date":"2021-01-09","name":"Virtual NYRR Resolution Run 5K","raceId":4591082929,"athleteId":31111742},{"date":"2020-12-13","name":"Virtual NYRR Season of Light 5K","raceId":4468152218,"athleteId":31111742},{"date":"2020-12-04","name":"Virtual NYRR Ted Corbitt 15K","raceId":4429261884,"athleteId":31111742},{"date":"2020-11-29","name":"Virtual NYRR Run for Thanks 5K","raceId":4407721686,"athleteId":31111742},{"date":"2020-10-25","name":"Virtual Abbott Dash to the Finish Line 5K","raceId":4242768144,"athleteId":31111742},{"date":"2020-10-07","name":"800m 2:21 onderlinge wedstrijd","raceId":4170957521,"athleteId":31111742},{"date":"2020-09-20","name":"3km Barendrecht gestopt door pijn in knie","raceId":4091039119,"athleteId":31111742},{"date":"2020-07-08","name":"Avondloop","raceId":3788928246,"athleteId":31111742},{"date":"2020-01-11","name":"Middagloop","raceId":3002385435,"athleteId":31111742},{"date":"2019-12-14","name":"cross gouda","raceId":2932037714,"athleteId":31111742},{"date":"2019-09-15","name":"Middagloop","raceId":2711280193,"athleteId":31111742},{"date":"2019-08-09","name":"Nachtloop","raceId":2635635930,"athleteId":31111742},{"date":"2018-11-11","name":"Middagloop","raceId":1964327572,"athleteId":31111742}]

Career Highlights

Most recent race Aug 1, 2026
Most ascent 4,232.2m
Most distance 106.43 km
Shortest duration 00:01:00

Personal Bests

Distance Time Race Date
1 Mile 00:01:00 4x400m ploegen competitie Apr 10, 2022
5 km 00:16:48 3PL 🥈 Jan 29, 2023
4 Miles 00:32:58 Virtual NYRR Resolution Run 5K Jan 9, 2021
10 km 00:35:58 Reeuwijkse Plassenloop 10k Mar 16, 2024
15 km 00:54:25 Klaverbladloop 15k 🥉 Nov 12, 2023
10 Miles 01:15:07 Houttrail Delft 13k die 16k werd..... Oct 31, 2021
20 km 01:36:51 Amerongse berg wintertrail 20k Dec 4, 2021
Half Marathon 01:19:42 Halve marathon van Zoetermeer Jan 21, 2024
25 km 01:56:32 Otterlo trail 25k Feb 26, 2022
30 km 02:37:38 Caubergtrail 30k Mar 30, 2024
Marathon 03:23:55 Heuvelland Marathon Mar 16, 2025
50 km 04:46:34 Bosbokkentrail ultra 50k Feb 22, 2026
60 km 07:56:19 UTML LONG TRAIL Sep 14, 2024
100 km 11:36:31 🥉 UTML ULTRA-TRAIL Sep 12, 2025

Performance Trends

Elapsed time per distance over time. Only distances with 3 or more races are shown.

Distance Distribution

Proportion of races at each distance.

Races by Distance

Distance This year All time
100km 1 2
60km 0 2
50km 2 2
Marathon 0 3
30km 0 4
25km 0 1
Half Marathon 0 4
20km 0 1
10 Miles 0 1
15km 0 3
10km 0 6
4 Miles 0 1
5km 0 17
1 Mile 0 8

Achievements

Race Time
🥇 4x400m ploegen competitie 00:01:00
🥈 800m openingswedstrijd 00:02:06
🥉 800m competitie 00:02:16
4th 800 testloop 00:02:17
5th 800m 2:21 onderlinge wedstrijd 00:02:28
6th testloopje 800m 00:02:39
7th 1000m openingswedstrijd 🥇 00:02:48
8th Middagloop 00:03:05
Race Time
🥇 3PL 🥈 00:16:48
🥈 5000m Delft 17:01.96 00:17:01
🥉 3PL 🥇17:08 00:17:05
4th Geuzenloop 🥈 00:17:22
5th 3PL 🥇 00:17:27
6th Ekiden Rotterdam etappe 1 00:17:33
7th 3PL 🥇 00:17:33
8th 3PL 🥈 00:17:40
9th 3 Plassenloop 🥈 00:17:56
10th Buytensportloop 5k 00:18:00
11th Avondloop 00:18:47
12th Middagloop 00:18:54
13th Klaverblad loop 5k 00:19:06
14th Virtual NYRR Run for Thanks 5K 00:20:32
15th Virtual NYRR Season of Light 5K 00:20:47
16th Virtual Abbott Dash to the Finish Line 5K 00:23:11
17th 5k Wilhelmina trappen marathon 🥇 00:29:22
Race Time
🥇 Virtual NYRR Resolution Run 5K 00:32:58
Race Time
🥇 Reeuwijkse Plassenloop 10k 00:35:58
🥈 Geuzenloop 10k 2025 00:36:39
🥉 10k Barendrecht 🥇 😵 00:37:29
4th klaverbladloop 10k 00:39:20
5th Gouwe boscross 00:43:16
6th Trappenloop 10k 🥇 00:56:34
Race Time
🥇 Houttrail Delft 13k die 16k werd..... 01:15:07
Race Time
🥇 Amerongse berg wintertrail 20k 01:36:51
Race Time
🥇 Halve marathon van Zoetermeer 01:19:42
🥈 Geuzenloop halve marathon 01:22:03
🥉 Geuzenloop Zoetermeer 01:22:20
4th heel rustig lang duurloopje 01:50:48
Race Time
🥇 Otterlo trail 25k 01:56:32
Race Time
🥇 Caubergtrail 30k 02:37:38
🥈 Veluwe zoomtrail 34k 02:50:52
🥉 UTML 35K 03:23:37
4th Koning van Spanje trail 30k 🥵 03:59:19
Race Time
🥇 Heuvelland Marathon 03:23:55
🥈 KVS 45k 04:13:29
🥉 DNF - Grizzly 100k 05:48:02
Race Time
🥇 Bosbokkentrail ultra 50k 04:46:34
🥈 Pitz Alpine Glacier Trail 45k-Glacier 07:48:32
Race Time
🥇 UTML LONG TRAIL 07:56:19
🥈 🇪🇸TRANSVULCANIA 🌋 ULTRATRAIL 10:45:23
Race Time
🥇 🥉 UTML ULTRA-TRAIL 11:36:31
🥈 Big Chouffe trail 100k 12:15:02
Race Elevation
🥇 🇪🇸TRANSVULCANIA 🌋 ULTRATRAIL 4,232.2m
🥈 Pitz Alpine Glacier Trail 45k-Glacier 3,138m
🥉 Big Chouffe trail 100k 2,953.9m
4th 🥉 UTML ULTRA-TRAIL 2,615.4m
5th UTML LONG TRAIL 1,911m
6th DNF - Grizzly 100k 1,365m
7th 🇪🇸TRANSVULCANIA🌋 VERTICAL UPHILL 1,177m
8th Wilhelmina trappen Marathon 10 mijl 🥇 1,148m
9th KVS 45k 1,138.6m
10th UTML 35K 1,056.9m
11th Heuvelland Marathon 897m
12th Koning van Spanje trail 30k 🥵 803.1m
13th Caubergtrail 30k 793.9m
14th Trappenloop 10k 🥇 663m
15th Veluwe zoomtrail 34k 495.1m
16th Bosbokkentrail ultra 50k 456.2m
17th Koning van Spanje night trail 16k 🥈 456.2m
18th St. Pieterbear trail 18k 417.9m
19th 5k Wilhelmina trappen marathon 🥇 357.2m
20th Amerongse berg wintertrail 20k 274.2m
21th Petzl night trail 🥉 186.9m
22th heel rustig lang duurloopje 130.8m
23th Otterlo trail 25k 120m
24th Goudse Kaas en stroopwafel Cross 85m
25th Halve marathon van Zoetermeer 67m
26th Virtual NYRR Ted Corbitt 15K 62.8m
27th Middagloop 41m
28th 5000m Delft 17:01.96 35m
29th Geuzenloop Zoetermeer 34m
30th cross gouda 31.1m
31th Virtual Abbott Dash to the Finish Line 5K 31m
32th Virtual NYRR Resolution Run 5K 28.8m
33th Houttrail Delft 13k die 16k werd..... 28.6m
34th Geuzenloop halve marathon 28.5m
35th Virtual NYRR Season of Light 5K 26.9m
36th Gouda Cross 23.4m
37th DNF Buytensportloop 15k 23m
38th Virtual NYRR Run for Thanks 5K 19m
39th Nachtloop 18.9m
40th Geuzenloop 10k 2025 18.1m
41th klaverbladloop 10k 17.1m
42th Avondloop 17m
43th Middagloop 17m
44th Middagloop 16.9m
45th Klaverbladloop 15k 🥉 15.8m
46th Klaverblad loop 5k 14m
47th Ekiden Rotterdam etappe 1 12.5m
48th 3000m ploegen competitie 12.2m
49th Floracross 10.5m
50th Buytensportloop 5k 9m
51th 10k Barendrecht 🥇 😵 9m
52th Geuzenloop 🥈 8.2m
53th 3km Barendrecht gestopt door pijn in knie 8.2m
54th testloopje 800m 6m
55th Reeuwijkse Plassenloop 10k 5m
56th Gouwe boscross 4m
57th 800m 2:21 onderlinge wedstrijd 4m
58th Reeuwijk cross 2.2m
59th 3PL 🥇17:08 2.1m
60th 5' maximaal test 0m
61th 1000m openingswedstrijd 🥇 0m
62th 1500m 0m
63th 3000m openingswedstrijd 0m
64th Reeuwijkse houtcross 🥉 0m
65th 3PL 🥇 0m
66th 3PL 🥈 0m
67th Floracross Boskoop 0m
68th 3PL 🥇 0m
69th 3PL 🥈 0m
70th 3 Plassenloop 🥈 0m
71th 800m competitie 0m
72th 4x400m ploegen competitie 0m
73th 800m openingswedstrijd 0m
74th Veldloop met school 🥇 0m
75th 1500M clubkampioenschappen 0m
76th 800 testloop 0m
77th 1500m onderlinge wedstrijd 0m
Race Distance
🥇 🥉 UTML ULTRA-TRAIL 106.43 km
🥈 Big Chouffe trail 100k 100.41 km
🥉 🇪🇸TRANSVULCANIA 🌋 ULTRATRAIL 73.73 km
4th UTML LONG TRAIL 71.57 km
5th Bosbokkentrail ultra 50k 51.16 km
6th Pitz Alpine Glacier Trail 45k-Glacier 47.57 km
7th KVS 45k 44.28 km
8th DNF - Grizzly 100k 43.91 km
9th Heuvelland Marathon 42.96 km
10th Veluwe zoomtrail 34k 33.54 km
11th UTML 35K 33.38 km
12th Koning van Spanje trail 30k 🥵 30.62 km
13th Caubergtrail 30k 29.91 km
14th Otterlo trail 25k 25.45 km
15th Geuzenloop Zoetermeer 21.18 km
16th Halve marathon van Zoetermeer 21.18 km
17th heel rustig lang duurloopje 21.14 km
18th Geuzenloop halve marathon 21.08 km
19th Amerongse berg wintertrail 20k 20.18 km
20th Petzl night trail 🥉 19.27 km
21th Wilhelmina trappen Marathon 10 mijl 🥇 18.42 km
22th St. Pieterbear trail 18k 17.08 km
23th Houttrail Delft 13k die 16k werd..... 16.48 km
24th Koning van Spanje night trail 16k 🥈 15.61 km
25th Virtual NYRR Ted Corbitt 15K 15.03 km
26th Klaverbladloop 15k 🥉 15.00 km
27th Trappenloop 10k 🥇 10.99 km
28th 10k Barendrecht 🥇 😵 10.11 km
29th Geuzenloop 10k 2025 10.10 km
30th Gouwe boscross 10.09 km
31th Reeuwijkse Plassenloop 10k 10.01 km
32th klaverbladloop 10k 9.88 km
33th Goudse Kaas en stroopwafel Cross 9.05 km
34th Reeuwijkse houtcross 🥉 8.93 km
35th Reeuwijk cross 8.86 km
36th Gouda Cross 8.78 km
37th Floracross 8.63 km
38th Floracross Boskoop 8.60 km
39th 🇪🇸TRANSVULCANIA🌋 VERTICAL UPHILL 7.26 km
40th DNF Buytensportloop 15k 7.09 km
41th Virtual NYRR Resolution Run 5K 6.70 km
42th Avondloop 5.26 km
43th Virtual NYRR Run for Thanks 5K 5.08 km
44th Middagloop 5.07 km
45th 5000m Delft 17:01.96 5.06 km
46th Virtual Abbott Dash to the Finish Line 5K 5.05 km
47th Virtual NYRR Season of Light 5K 5.02 km
48th 3 Plassenloop 🥈 5.02 km
49th Ekiden Rotterdam etappe 1 5.01 km
50th 3PL 🥇17:08 5.00 km
51th Buytensportloop 5k 4.99 km
52th 5k Wilhelmina trappen marathon 🥇 4.99 km
53th 3PL 🥈 4.99 km
54th 3PL 🥇 4.98 km
55th 3PL 🥇 4.98 km
56th 3PL 🥈 4.97 km
57th Klaverblad loop 5k 4.96 km
58th Geuzenloop 🥈 4.79 km
59th 3000m ploegen competitie 3.01 km
60th 3000m openingswedstrijd 3.01 km
61th Middagloop 2.83 km
62th cross gouda 2.38 km
63th 3km Barendrecht gestopt door pijn in knie 1.97 km
64th 5' maximaal test 1.69 km
65th Nachtloop 1.58 km
66th 1500m onderlinge wedstrijd 1.54 km
67th 1500M clubkampioenschappen 1.52 km
68th 1500m 1.50 km
69th Veldloop met school 🥇 1.47 km
70th Middagloop 1.06 km
71th 1000m openingswedstrijd 🥇 1.01 km
72th 800 testloop 0.83 km
73th testloopje 800m 0.82 km
74th 800m competitie 0.81 km
75th 800m openingswedstrijd 0.77 km
76th 800m 2:21 onderlinge wedstrijd 0.73 km
77th 4x400m ploegen competitie 0.41 km
Click to login via Strava

By continuing, you agree to our Terms of Service and Privacy Policy.