HalfRuns
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Diem Nguyen

FemaleCalifornia1999–2026

79

Total Finishes

45

Distinct Races

15

States (29%)

1:44:58

PR (8:01/mi)

2:26:47

Average

-0:04:34

Faster (first to last)

Medal House

2010

American River Parkway Half Marathon

1:53:03
#363 overall#107 gender
2007

Oklahoma City Memorial Marathon

2:03:30
#1100 overall#408 gender
2007

United Airlines NYC Half

2:18:15
#7905 overall#3387 gender
2006

Rock ‘n’ Roll Philadelphia Half Marathon

2:01:40
#5080 overall#1719 gender
2006

Rock 'n' Roll Virgina Beach Half Marathon

2:04:47
#4471 overall#1604 gender
2006

Big Lake Half Marathon

2:17:13
#1042 overall#538 gender
2006

2026 Disneyland® Half Marathon Weekend presented by HONDA

2:29:42
#4428 overall#2154 gender
2006

Hyannis Marathon

2:30:50
#1139 overall#561 gender
2005

Boston's Run To Remember

2:04:58
#2180 overall#946 gender
2005

Maine Marathon, Half Marathon and Marathon Relay

2:07:24
#861 overall#432 gender
2002

Thanksgiving Distance Classic

2:06:39
#887 overall#288 gender
1999

Thanksgiving Distance Classic

2:25:54
#1142 overall#450 gender

Performance Timeline

PR 1:44:58199920022005200520062006200620062006200720072010201020102010201120122012201220132013201420142014201420142015201520152015201520152015201520162016201620162016201620162017201720172017201720172017201720172017201720182018201820182018201820182018201820182018201820182018201920192019201920192020202020212021202120212021202220222023202320232024202420252026

Complete Race Log

YearRaceStateTimePlace
2026The Colorado MarathonFort CollinsCO2:21:20#787
2025Macon Music Half MarathonMaconGA2:15:58#192
20242026 - San Antonio MarathonSan AntonioTX2:10:44#3044
2024Schaumburg Turkey Trot Half Marathon & 5KElk Grove VillageIL2:41:11#671
2023Texas Eclipse Ring of FireBoerneTX2:22:42#65
20232026 - San Antonio MarathonSan AntonioTX2:45:30#5496
20232025 Disney Princess Half Marathon Weekend presented by CORKCICLE®OrlandoFL3:11:36#8003
2022Rock 'n' Roll Las VegasLas VegasNV1:58:06#1839
2022Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan FranciscoCA3:32:17#4029
2021Cowtown Marathon, Half Marathon and Ultra MarathonFort WorthTX2:06:15#909
2021UTHealth Houston Half Marathon & 10KHoustonTX2:20:11#2289
2021Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan FranciscoCA2:23:42#1988
2021Surf City MarathonHuntington BeachCA2:43:58#3622
2021OC Marathon - Half Marathon - 5KNewport BeachCA2:51:27#3746
2020UTHealth Houston Half Marathon & 10KHoustonTX2:15:10#330
2020Surf City MarathonHuntington BeachCA2:38:57#6335
2019St. Paddy's Day Half MarathonHoustonTX2:09:12#216
2019Rock 'n' Roll New OrleansNew OrleansLA2:19:56#2884
2019UTHealth Houston Half Marathon & 10KHoustonTX2:28:38#2973
2019Surf City MarathonHuntington BeachCA2:34:56#5111
20192026 2XU Long Beach Marathon & Half MarathonLong BeachCA2:47:12#4831
2018St. Jude Rock 'n' Roll SeattleSeattleWA1:46:12#581
2018Rock ‘n’ Roll Denver Marathon & 1/2 MarathonDenverCO1:59:33#1194
20182026 2XU Long Beach Marathon & Half MarathonLong BeachCA2:16:01#2197
2018St. Paddy's Day Half MarathonHoustonTX2:17:01#264
2018OC Marathon - Half Marathon - 5KNewport BeachCA2:36:14#3973
2018Surf City MarathonHuntington BeachCA2:37:00#5923
2018St. Jude Rock 'n' Roll SeattleSeattleWA2:38:55#6005
2018Rock 'n' Roll Los Angeles Half MarathonLos AngelesCA2:39:57#3322
2018Rock 'n' Roll Chicago Half MarathonChicagoIL2:40:40#7010
2018Rock 'n' Roll Las VegasLas VegasNV2:42:20#9714
2018Rock 'n' Roll San DiegoSan DiegoCA2:44:46#9109
2018Rock 'n' Roll Arizona MarathonPhoenixAZ2:49:30#6306
2018Rock 'n' Roll Half Marathon San FranciscoSan FranciscoCA2:49:55#4168
2018Rock 'n' Roll Chicago Half MarathonChicagoIL2:51:47#7694
2017Rock 'n' Roll Half Marathon San FranciscoSan FranciscoCA1:52:51#844
2017The Colorado MarathonFort CollinsCO1:54:40#222
2017St. Paddy's Day Half MarathonHoustonTX2:05:28#186
2017Life Time Chicago Half Marathon + 5KChicagoIL2:26:06#4299
2017Urban Cow Half MarathonSacramentoCA2:29:31#1904
2017Schaumburg Turkey Trot Half Marathon & 5KElk Grove VillageIL2:29:53#1139
2017Surf City MarathonHuntington BeachCA2:34:00#6246
2017OC Marathon - Half Marathon - 5KNewport BeachCA2:36:17#4122
20172026 2XU Long Beach Marathon & Half MarathonLong BeachCA2:41:06#4652
2017Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan FranciscoCA2:43:53#5506
2017Berkeley Half MarathonBerkeleyCA2:47:11#3674
2016Urban Cow Half MarathonSacramentoCA1:44:58#270
2016Pioneer Prairie Dog Half, 10k & 5kWestminsterCO1:54:38#54
2016Rock 'n' Roll Half Marathon San FranciscoSan FranciscoCA2:03:09#1610
2016St. Paddy's Day Half MarathonHoustonTX2:06:28#318
2016Rock 'n' Roll New OrleansNew OrleansLA2:10:12#3429
2016Sand Creek Half MarathonDenverCO2:10:14#84
2016Surf City MarathonHuntington BeachCA2:38:12#7323
2015Rock ‘n’ Roll Denver Marathon & 1/2 MarathonDenverCO2:01:56#2172
2015Rock 'n' Roll New OrleansNew OrleansLA2:04:48#2088
2015St. Paddy's Day Half MarathonHoustonTX2:11:59#413
20152025 Aramco Houston Half Marathon Searchable Finish Line VideoHoustonTX2:28:21#6900
2015Surf City MarathonHuntington BeachCA2:30:48#7923
2015Beer City Half™ Santa RosaSanta RosaCA2:38:02#957
2015Wine Country Women's Half Marathon & 5K RunTemeculaCA2:47:08#120
2015Rock 'n' Roll Los Angeles Half MarathonLos AngelesCA2:59:43#6275
2014Rock ‘n’ Roll Denver Marathon & 1/2 MarathonDenverCO1:53:29#1364
2014OC Marathon - Half Marathon - 5KNewport BeachCA2:27:54#5429
2014Tucson MarathonTucsonAZ2:47:28#881
20142026 2XU Long Beach Marathon & Half MarathonLong BeachCA2:50:40#7949
2014Everyone Runs Veteran's DayTucsonAZ2:55:07#323
20132027 Walt Disney World® Marathon WeekendOrlandoFL3:14:39#18509
20132026 Disneyland® Half Marathon Weekend presented by HONDAAnaheimCA3:26:04#13008
2012Urban Cow Half MarathonSacramentoCA1:59:10#925
2012Shamrock'n Half MarathonSacramentoCA2:16:55#2589
20122026 Disney Wine & Dine Half Marathon WeekendOrlandoFL2:53:27#7573
2011OC Marathon - Half Marathon - 5KNewport BeachCA2:18:53#3415
2010American River Parkway Half MarathonSacramentoCA1:53:03#363
2010Carlsbad MarathonCarlsbadCA2:19:05#4215
2010Shamrock'n Half MarathonSacramentoCA2:20:20#2506
2010UTHealth Houston Half Marathon & 10KHoustonTX2:46:23#2536
2007Oklahoma City Memorial MarathonOklahoma CityOK2:03:30#1100
2007United Airlines NYC HalfNew YorkNY2:18:15#7905
2006Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA2:01:40#5080
2006Rock 'n' Roll Virgina Beach Half MarathonVirginia BeachVA2:04:47#4471
2006Big Lake Half MarathonAlton BayNH2:17:13#1042
20062026 Disneyland® Half Marathon Weekend presented by HONDAAnaheimCA2:29:42#4428
2006Hyannis MarathonHyannisMA2:30:50#1139
2005Boston's Run To RememberBostonMA2:04:58#2180
2005Maine Marathon, Half Marathon and Marathon RelayPortlandME2:07:24#861
2002Thanksgiving Distance ClassicJacksonvilleFL2:06:39#887
1999Thanksgiving Distance ClassicJacksonvilleFL2:25:54#1142

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

CACalifornia
37 races
TXTexas
14 races
COColorado
7 races
FLFlorida
5 races
ILIllinois
5 races
AZArizona
3 races
LALouisiana
3 races
MAMassachusetts
2 races
NVNevada
2 races
WAWashington
2 races
GAGeorgia
1 race
NYNew York
1 race
OKOklahoma
1 race
KSKansas
0 races
MDMaryland
0 races

50-State Challenge

15/ 51 states + DC

36 states to go