HalfRuns
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Jeff Grotenhuis

MaleColorado2000–2026

39

Total Finishes

13

Different Races

1

States (2%)

1:44:25

PR (7:58/mi)

1:52:51

Average

-0:00:44

Faster (first to last)

Medal House

2010

Slacker Half Marathon-Relay-4-Mile Races

1:49:27
#257 overall#181 gender
2009

Georgetown to Idaho Springs Half Marathon

1:52:54
#615 overall#403 gender
2008

Slacker Half Marathon-Relay-4-Mile Races

1:44:45
#136 overall#95 gender
2008

Georgetown to Idaho Springs Half Marathon

1:48:33
#431 overall#288 gender
2007

Georgetown to Idaho Springs Half Marathon

1:49:27
#494 overall#337 gender
2007

Horsetooth Half Marathon - Presented by Fort Collins Connexion

1:57:51
#358 overall#251 gender
2006

Georgetown to Idaho Springs Half Marathon

1:54:24
#645 overall#417 gender
2004

Slacker Half Marathon-Relay-4-Mile Races

1:44:25
#96 overall#78 gender
2003

Georgetown to Idaho Springs Half Marathon

1:52:01
#614 overall#455 gender
2003

Boulder Rez Marathon

1:59:47
#765 overall#460 gender
2002

Georgetown to Idaho Springs Half Marathon

1:55:16
#912 overall#626 gender
2000

Georgetown to Idaho Springs Half Marathon

1:55:32
#1097 overall#754 gender

Performance Timeline

PR 1:44:252000200220032003200420062007200720082008200920102011201120112015201620162017201720172018202120212021202220222022202220232024202420242025202520252025202520262026

Complete Race Log

YearRaceStateTimePlace
2026Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO1:50:23#353
2026Spring EquinoxWellingtonCO1:54:48#82
2025Estes Park MarathonEstes ParkCO1:47:50#42
2025Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO1:49:06#177
2025The Long View MarathonFort CollinsCO1:50:04#60
2025Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile RunWindsorCO1:50:45#27
2025Choice City Running FestivalFort CollinsCO1:57:01#46
2024The Long View MarathonFort CollinsCO1:53:13#64
2024Kaiser Permanente Colfax MarathonDenverCO1:53:21#770
2024Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO1:56:07#390
2023Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO1:50:05#186
2022Fall EquinoxFort CollinsCO1:46:40#122
2022Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO1:48:51#305
2022Georgetown to Idaho Springs Half MarathonUnknownCO1:49:47#150
2022Estes Park MarathonEstes ParkCO1:55:26#54
2021Georgetown to Idaho Springs Half MarathonUnknownCO1:45:24#115
2021Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO1:46:09#99
2021NOCO Half Marathon & 10KLovelandCO1:46:54#29
2018Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO1:50:32#349
2017Fort Collins Human RaceFort CollinsCO1:49:29#51
2017Estes Park MarathonEstes ParkCO1:50:37#20
2017Denver Half Marathon and 10KDenverCO1:50:42#30
2016Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO1:53:18#320
2016Fall EquinoxFort CollinsCO2:57:43#754
2015Estes Park MarathonEstes ParkCO1:55:57#53
2011Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO1:47:05#241
2011Georgetown to Idaho Springs Half MarathonUnknownCO1:50:34#568
2011Spring EquinoxWellingtonCO1:52:28#313
2010Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO1:49:27#257
2009Georgetown to Idaho Springs Half MarathonUnknownCO1:52:54#615
2008Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO1:44:45#136
2008Georgetown to Idaho Springs Half MarathonUnknownCO1:48:33#431
2007Georgetown to Idaho Springs Half MarathonUnknownCO1:49:27#494
2007Horsetooth Half Marathon - Presented by Fort Collins ConnexionFort CollinsCO1:57:51#358
2006Georgetown to Idaho Springs Half MarathonUnknownCO1:54:24#645
2004Slacker Half Marathon-Relay-4-Mile RacesGeorgetownCO1:44:25#96
2003Georgetown to Idaho Springs Half MarathonUnknownCO1:52:01#614
2003Boulder Rez MarathonBoulderCO1:59:47#765
2002Georgetown to Idaho Springs Half MarathonUnknownCO1:55:16#912
2000Georgetown to Idaho Springs Half MarathonUnknownCO1:55:32#1097

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

COColorado
40 races

50-State Challenge

1/ 51 states + DC

50 states to go