Tammy Sieminowski
Born : 1968 Cat. W55 Ultrarunner since 2002 CAN
80
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
80
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
12
Countries visited ?AUSAustraliaCANCanadaGBRUnited KingdomHKGHong KongJORJordanJPNJapanMARMoroccoNZLNew ZealandPURPuerto RicoRSASouth AfricaTHAThailandUSAUnited States
53,8%
Rank quotient ?This runner's calculation uses 175 eligible race(s): Σ(rank − 1) = 15 116; Σ finishers = 28 093. 15 116 / 28 093 × 100 = 53.81%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed177
Km — ultra races14 025 km
> 100 km28
> 160 km27
> 200 km1
> 24h3
Longest race217,3 km

Km per year (ultra races)

80
1 race
2022
2023
50
1 race
2024
100
2 races
2025
80
1 race
2026

Race types (share of distance)

Road19,1%
Trail79,6%
Stage1,3%

Wins & podiums (ultra)

🏆 Win0
🏆 Win F5
🏅 Top 32
🏅 Top 3 F29
Longest winning streak0
Current streak0

HISTORY

176 race(s)
DateRacePerf.Rk
2026
28.02 50mi USA8th Grandmaster Ultras 50 Mile Run 15:36:00 h8
2025
16.11 50km CAN20th Fat Ass Trail Run 8:44:35 h58
01.03 50km USA7th Grandmaster Ultras 50 km Run 8:52:00 h8
2024
02.03 50km USA5th Flat Top Mesa 50 km Endurance Run 8:53:57 h12
2022
11.02 50mi USA4th Grandmaster Ultras 50 Mile Run 13:23:43 h8
2020
07.03 50km USA11th Mesquite Canyon 50 km 8:58:39 h75
18.01 46.5mi USA8th San Diego 50 Mile Trail 12:29:08 h174
2019
05.10 50mi USA5th The Hennepin Hundred - 50 Mile Run 11:18:17 h75
01.06 50mi USA23rd Bishop High Sierra Ultramarathons 50 Miles 14:43:10 h36
06.04 50km USA27th Leona Divide 50 km Run 8:01:06 h109
09.03 50km USA10th Mesquite Canyon 50 km 8:46:28 h70
09.02 50km NZL5th Tarawera 50 km Ultramarathon 8:51:13 h482
2018
29.09 50mi USA5th Overlook Endurance Run 50M 13:59:19 h60
05.05 40mi USA40th Strolling Jim 40 Mile 9:06:52 h148
14.04 88km USA3rd Whiskey Basin 88 km Trail Run 15:30:01 h59
17.03 50km USA9th Mesquite Canyon 50 km 7:57:15 h50
13.01 46.5mi USA6th San Diego 50 Mile Trail 11:14:01 h80
2017
02.12 50mi USA8th McDowell Mountain Frenzy 50 Mile 13:38:14 h55
18.11 47km MAR5ème Tafraout Atlas Trail 6:41:37 h7
11.11 50mi USA4th Colossal Vail 50 Mile 13:14:30 h31
22.07 45mi USA1st Bigfoot 45 Mile Race 12:44:45 h56
16.06 50mi USA5th Bryce 50 Mile Trail Run 15:23:35 h127
27.05 50km CAN25th Sulphur Springs Trail Run 50km 6:15:08 h74
06.05 40mi USA39th Strolling Jim 40 Mile 9:13:37 h126
07.04 100mi USA6th The Zion 100 Mile Run 33:17:39 h155
18.03 50km USA8th Mesquite Canyon 50 km 8:12:26 h32
01.01 50km USA15th Woodside Trail Run 50K 7:09:22 h50
2016
10.12 100mi USA2nd Daytona 100 - 100 Miles Ultra 26:51:00 h65
12.11 50mi USA3rd Colossal Vail 50 Mile 13:46:53 h24
15.10 50km CAN14th Vulture Bait 50 km Trail Race 6:36:59 h40
08.10 50mi USA14th Can Lake 50 Mile Ultra 10:54:31 h52
24.09 50km USA3rd Endurance Challenge - Utah Trail 50 km 7:50:04 h157
04.09 50km USA2nd Lake Michigan Trail Marathon 50k 5:59:24 h21
06.08 75km CAN10th Creemore Vertical Challenge 75 km Trail Run 11:27:20 h11
09.07 55km USA3rd Beaverhead 55K Endurance Run 10:56:55 h69
25.06 50mi CAN7th Tenderfoot Boogie 50 Mile Ultra Trail Race 13:37:00 h23
28.05 100mi USA3rd Booneville Backroads Ultra 100 Mile 27:48:57 h10
16.04 50km USA26th Trail Mix Race 5:40:54 h48
12.03 50mi USA7th Mesquite Canyon 50 Mile 12:57:41 h10
20.02 50mi USA3rd Antelope Canyon 50 Mile Race 12:54:04 h118
06.02 50mi PUR2nd Puerto Rico 50 Miles Endurance Run 10:40:00 h8
16.01 50mi USA4th San Diego 50 Mile Trail 10:33:30 h70
09.01 50km USA10th Hilo to Volcano 50k Ultramarathon 6:20:50 h19
2015
12.12 50km USA11th Rodeo Beach 50km 6:53:43 h38
14.11 50km USA6th Pass Mountain 50 km Race 7:15:57 h28
31.10 70km HKG3rd Lantau Trail race 70k 15:59:44 h188
17.10 50km CAN13th Vulture Bait 50 km Trail Race 6:19:49 h43
10.10 50mi USA13th Can Lake 50 Mile Ultra 9:52:40 h37
12.09 100mi CAN20th Haliburton Forest 100 Mile Race 28:55:44 h15
08.08 50km CAN9th Creemore Vertical Challenge 50 km Trail Run 6:23:13 h34
18.07 100mi USA27th Vermont 100 Mile Endurance Race 27:40:01 h161
27.06 50mi USA6th North Fork 50 Mile Trail Race 12:43:30 h37
20.06 50km CAN23rd Niagara Ultra 50 km 5:10:16 h64
15.05 100mi USA2nd Grand Canyon 100 Mile 29:03:18 h18
02.05 50km USA2nd Nirvana Ultra Big Bear 50 km 6:58:00 h11
10.04 50km USA4th The Zion 50 km Run 6:51:36 h49
03.04 50km JOR22nd Dead Sea Ultra Marathon 5:09:26 h30
28.03 50km USA23rd Crown King Scramble 50K 7:23:41 h130
07.02 50mi USA10th Iron Horse 50 Mile Endurance Run 12:51:30 h35
31.01 50km THA4th The North Face 100 Thailand - 50 km 7:08:28 h90
17.01 50mi USA3rd San Diego 50 Mile Trail 10:29:29 h94
2014
06.12 50mi USA5th McDowell Mountain Frenzy 50 Mile 11:49:17 h23
15.11 34mi GBRCoastal Trail Series - Gower Ultra 8:11:56 h81
18.10 50km CAN12th Vulture Bait 50 km Trail Race 6:13:47 h37
23.08 100mi USA10th Lean Horse Ultra-Marathon 100 Mile 25:39:53 h18
19.07 50mi USA13th Tahoe Rim Trail 50M Endurance Run 14:41:05 h94
05.07 50km CAN8th Creemore Vertical Challenge 50 km Trail Run 6:14:32 h39
01.06 89km RSA89th Comrades Marathon - Down Run 10:40:46 h6042
10.05 50km CAN8th Seaton Trail Run 50 km 6:49:46 h42
26.04 100mi USA3rd Fort Clinch 100 Mile Endurance Run 28:01:04 h16
22.03 50mi USA5th Mesquite Canyon 50 Mile 13:14:18 h15
08.03 100km USA3rd Graveyard 100 km Ultramarathon 14:17:42 h5
08.02 50km AUS21st 50km Caboolture Historical Village Dusk to Dawn 5:54:40 h6
18.01 100mi USA4th Long Haul 100 Mile Ultra-Marathons 26:48:22 h17
2013
29.12 50km USA12th Woodside Trail Run 50K 6:28:31 h67
07.12 50mi USA4th McDowell Mountain Frenzy 50 Mile 11:11:23 h19
05.10 100mi trail race USA23rd Arkansas Traveller 100 28:48:30 h56
07.09 50mi CAN18th Haliburton Forest 50 Mile Race 12:17:25 h40
17.08 100mi USA4th Beast of Burden Summer 100 Miler 23:33:48 h20
13.07 56km CAN4th Limberlost 56 km Challenge 9:35:23 h63
06.07 50km CAN7th Creemore Vertical Challenge 50 km Trail Run 6:35:33 h52
22.06 50km CAN21st Niagara Ultra 50 km 5:26:47 h51
08.06 6h CAN21st Self Transcendence 6 Hour Run Kingston 52.158 km32
18.05 100mi USA6th Keys100 Ultra-Marathons 100mi 26:50:16 h34
26.04 84km JPN2nd Shizuoka to Yamanashi 18:01:19 h349
23.03 50mi USA4th Mesquite Canyon 50 Mile 13:15:56 h16
09.02 100mi USA8th Iron Horse 100 Mile Endurance Run 25:06:48 h23
27.01 50mi USA4th St. Croix Scenic 50 Mile 10:39:26 h4
12.01 50mi USA6th Running from an Angel 50 Miler 8:59:54 h12
2012
15.12 50km USA1st Woodside Ramble 50K - Winter 6:59:49 h56
27.10 100mi USA10th Javelina Jundred 100 Mile Endurance Run 25:45:00 h75
06.10 50mi USA10th Can Lake 50 Mile Ultra 10:06:57 h68
29.09 50km CAN11th Run for the Toad 50 km 5:47:15 h75
15.07 50mi USA5th Leadville Silver Rush 50 Mile Run 12:45:32 h340
07.07 50km CAN6th Creemore Vertical Challenge 50 km Trail Run 6:20:04 h38
23.06 50km CAN20th Niagara Ultra 50 km 5:12:20 h62
26.05 100mi CAN20th Sulphur Springs Trail Run 100 Mile 25:36:29 h35
24.03 50km USA8th Bel Monte 50 km Endurance Run 8:54:22 h46
18.02 100mi USA7th Iron Horse 100 Mile Endurance Run 23:40:00 h20
21.01 100km USA2nd Long Haul 100 km Ultra-Marathon 12:42:20 h7
2011
12.11 100mi USA9th Javelina Jundred 100 Mile Endurance Run 24:22:53 h68
15.10 50km CAN9th Vulture Bait 50 km Trail Race 6:15:11 h74
08.10 50mi USA9th Can Lake 50 Mile Ultra 10:10:46 h39
10.09 50mi CAN16th Haliburton Forest 50 Mile Race 11:18:05 h24
11.07 135mi USA25th Badwater Ultramarathon 42:25:26 h64
18.06 50km CAN19th Niagara Ultra 50 km 5:23:20 h80
28.05 100mi CAN19th Sulphur Springs Trail Run 100 Mile 27:05:22 h30
16.04 52km CAN6th Seaton Trail Run 52 km 9:18:00 h29
26.03 12h USA5th 24 Hours of Utah - 12 hour race 77.779 km3 🥉
26.02 118mi USA5th LOST 118 Mile Endurance Run 28:21:06 h3 🥉
15.01 100km USA11th HURT 100 Endurance Run 100 km 27:07:00 h30
2010
06.11 100mi USA3rd Mother Road 100 Mile 25:18:57 h55
16.10 50km CAN8th Vulture Bait 50 km Trail Race 5:32:57 h54
11.09 50km CAN15th Haliburton Forest 50 km Race 6:01:50 h14
07.08 24h CAN4th Dirty girls 24 hour Trail Race 80.000 km32
18.07 50mi USA3rd Leadville Silver Rush 50 Mile Run 11:49:31 h127
03.07 50km CAN4th Creemore Vertical Challenge 50 km Trail Run 6:01:07 h30
20.06 50km CAN8th Mont Royal Summit Quest 50km 5:40:30 h7
19.06 50km CAN18th Niagara Ultra 50 km 5:12:27 h62
29.05 100mi CAN18th Sulphur Springs Trail Run 100mi 25:04:00 h17
17.04 50mi CAN5th Seaton Trail Run 50 Miles 10:47:19 h9
27.03 50km USA11th Chicago Lakefront Spring 50km Race 5:17:40 h78
20.03 50km USA1st Mesquite Canyon 50 km 7:38:18 h52
13.02 100mi USA5th Iron Horse 100 Mile Endurance Run 23:26:22 h12
16.01 100km USA10th HURT 100 Endurance Run 100 km 25:17:00 h17
2009
19.12 50mi USA2nd Lookout Mountain 50 Mile Race 11:20:53 h48
12.12 50km USA2nd Jacks 50k Trail Race 5:07:35 h5
07.11 50mi USA13th OPSF Ultra 50 Mile Race 12:51:00 h5
17.10 50km CAN7th Vulture Bait 50 km Trail Race 5:39:14 h55
10.10 50mi USA27th Dick Collins Firetrails 50 Mile 10:41:12 h149
12.09 50km CAN14th Haliburton Forest 50 km Race 6:28:26 h20
08.08 24h CAN3rd Dirty girls 24 hour Trail Race 117.500 km12
04.07 50km CAN3rd Creemore Vertical Challenge 50 km Trail Run 5:41:26 h31
20.06 50km CAN17th Niagara Ultra 50 km 4:40:32 h28
23.05 100mi CAN17th Sulphur Springs Trail Run 100mi 24:31:44 h17
18.04 78km CAN4th Seaton Trail Run 78 km 10:44:42 h9
21.03 50km USA5th Rucky Chucky Roundabout 50K 7:08:16 h35
07.02 100mi USA17th Rocky Raccoon 100 Mile Trail Run 25:41:24 h94
10.01 100km USA9th Bandera 100 km Ultratrail 14:30:09 h46
2008
22.11 50mi USA46th JFK 50 Mile 9:16:02 h203
18.10 50km CAN6th Vulture Bait 50 km Trail Race 5:32:06 h41
06.09 50km CAN13th Haliburton Forest 50 km Race 6:17:05 h8
09.08 24h CAN2nd Dirty girls 24 hour Trail Race 100.000 km12
05.07 50km CAN2nd Creemore Vertical Challenge 50 km Trail Run 6:46:06 h44
21.06 50km CAN16th Niagara Ultra 50 km 4:50:25 h33
24.05 100mi CAN16th Sulphur Springs Trail Run 100mi 25:14:04 h20
03.05 50km CAN8th Toronto Ultra Race 50km 4:52:17 h9
19.04 52km CAN3rd Seaton Trail Run 52 km 6:50:09 h16
22.03 50mi USA9th Grasslands 50 Mile Trail Run 10:35:15 h30
2007
17.11 50mi USA45th JFK 50 Mile 9:57:40 h409
13.10 50km CAN5th Vulture Bait 50 km Trail Race 5:33:48 h52
08.09 50km CAN12th Haliburton Forest 50 km Race 6:27:01 h17
11.08 12h CAN1st Dirty girls 12 hour Trail Race 80.000 km7
07.07 50km CAN1st Creemore Vertical Challenge 50 km Trail Run 5:39:28 h10
25.05 50mi CAN15th Sulphur Springs Trail Run 50mi 9:46:01 h14
05.05 100km CAN7th Toronto Ultra Race 100km 11:24:15 h18
03.02 100mi USA15th Rocky Raccoon 100 Mile Trail Run 27:02:51 h117
2006
14.10 50km CAN4th Vulture Bait 50 km Trail Race 5:33:52 h44
01.07 50km USA18th Finger Lakes Fifties 50 km Run 7:43:35 h51
26.05 50mi CAN14th Sulphur Springs Trail Run 50mi 10:16:07 h18
06.05 50km CAN6th Toronto Ultra Race 100km - 50km Split 4:36:49 h17
06.05 100km CAN6th Toronto Ultra Race 100km 11:27:27 h26
08.04 52km CAN1st Seaton Trail Run 52 km 6:35:21 h22
2005
10.09 50km CAN10th Haliburton Forest 50 km Race 6:34:00 h26
30.07 92km/2stages CANUltimat Canuck 92 km Stage Race 11:14:54 h32
27.05 50km CAN13th Sulphur Springs Trail Run 50km 5:32:37 h26
07.05 50km CAN5th Toronto Ultra Race 50km 5:15:13 h17
09.04 50km CANShades Mills 50 km Trail Run 5:54:16 h43
2004
11.09 50km CAN9th Haliburton Forest 50 km Race 6:50:29 h27
31.07 92km/2stages CANUltimat Canuck 92 km Stage Race 10:58:51 h23
26.06 50km CAN12th Niagara Ultra 50 km 5:13:39 h35
29.05 50km CAN12th Sulphur Springs Trail Run 50km 6:05:18 h32
01.05 50km CAN4th Toronto Ultra Race 50km 5:10:49 h14
2003
28.06 50km CAN11th Niagara Ultra 50 km 5:14:16 h17
2002
07.09 50km CAN7th Haliburton Forest 50 km Race 6:02:13 h19
29.06 50km CAN10th Niagara Ultra 50 km 5:26:30 h28