HalfRuns
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Robert Williamson

MalePennsylvania1987–2026

52

Total Finishes

31

Distinct Races

18

States (35%)

1:26:21

PR (6:35/mi)

2:06:22

Average

-2:45:44

Faster (first to last)

Medal House

2003

Rock ‘n’ Roll Philadelphia Half Marathon

1:33:12
#716 overall#617 gender
2003

Germantown Half Marathon & Mayor's Cup 5K

1:36:11
#65 overall#59 gender
2003

Rock ‘n’ Roll Philadelphia Half Marathon

2:01:21
#4357 overall#2984 gender
2002

Rock ‘n’ Roll Philadelphia Half Marathon

1:37:15
#708 overall#597 gender
2002

Rock ‘n’ Roll Philadelphia Half Marathon

2:03:44
#3929 overall#2684 gender
2001

Rock ‘n’ Roll Philadelphia Half Marathon

1:30:00
#523 overall#463 gender
2001

Caesar Rodney Half Marathon

1:35:09
#186 overall#164 gender
2000

Caesar Rodney Half Marathon

1:52:10
#574 overall#469 gender
1999

Rock ‘n’ Roll Philadelphia Half Marathon

1:28:45
#491 overall#438 gender
1999

Rock ‘n’ Roll Philadelphia Half Marathon

1:49:26
#2568 overall#2006 gender
1988

The LESS Popular Brooklyn Half Marathon!

1:40:24
#639 overall#584 gender
1987

Pikes Peak Ascent

4:50:21
#842 overall#841 gender

Performance Timeline

PR 1:26:21198719881999199920002001200120022002200320032003200420042005200720072007200820082008200920092010201020102011201120122012201320132013201520152016201720172017201720182018201820182019201920192020202120212022202220222022202320232023202320242024202420242025202520252026

Complete Race Log

YearRaceStateTimePlace
20262027 Augusta Half Marathon 10K 5KAugustaGA2:04:37#226
2025Novant Health Wilmington NC MarathonWilmingtonNC2:11:24#1180
2025NHRMC Wilmington NC Half MarathonWilmingtonNC2:11:24#1178
20252027 Augusta Half Marathon 10K 5KAugustaGA2:11:29#246
2024Seattle MarathonSeattleWA1:46:40#544
2024Coastal Delaware Running FestivalRehoboth BeachDE1:59:24#362
2024Coastal Delaware Running FestivalDewey BeachDE1:59:25#362
20242027 Augusta Half Marathon 10K 5KAugustaGA2:02:09#192
2023Semper Fi 5K & HalfWashingtonDC1:48:29#35
20232027 Augusta Half Marathon 10K 5KAugustaGA1:58:13#180
2023Nationwide Children's Hospital Columbus Marathon & 1/2 Marathon, Jesse Owens 5K, 1 Mile & Kids RunColumbusOH2:13:35#3464
2023Shamrock MarathonVirginia BeachVA2:50:11#4260
20222027 Augusta Half Marathon 10K 5KAugustaGA1:58:13#180
2022Spearfish Canyon Half Marathon & 5KSpearfishSD2:05:51#110
2022Historic Half Training (sponsored by FARC)FredericksburgVA2:18:15#1048
2022Shamrock MarathonVirginia BeachVA2:22:20#3197
2021Seattle MarathonSeattleWA1:57:37#503
202117th Annual Myrtle Beach Mini Marathon & Coastal 5KMyrtle BeachSC2:20:01#899
20202027 Augusta Half Marathon 10K 5KAugustaGA2:05:05#272
2019Philadelphia MarathonPhiladelphiaPA1:53:25#2976
2019Love Run Half MarathonPhiladelphiaPA1:59:18#2283
20192027 Augusta Half Marathon 10K 5KAugustaGA2:10:57#395
2018Rock 'n' Roll Virgina Beach Half MarathonVirginia BeachVA1:55:40#475
20182027 Augusta Half Marathon 10K 5KAugustaGA2:03:21#275
2018Philly RunfestPhiladelphiaPA2:05:39#484
2018Kentucky Derby Festival Race WeekendLouisvilleKY2:50:04#6446
2017Heatwave Half Marathon - Little RockLittle RockAR2:02:02#640
20173M Half MarathonAustinTX2:21:07#3451
2017Indianapolis Monumental MarathonIndianapolisIN2:44:23#6351
2017Thanksgiving Day Half MarathonAtlantaGA2:49:22#5460
2016Fairview Half Marathon and 5KFairviewTX2:15:02#343
2015OC Marathon - Half Marathon - 5KNewport BeachCA1:39:10#265
20152027 Augusta Half Marathon 10K 5KAugustaGA2:16:55#580
2013Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:48:17#3046
2013Philadelphia MarathonPhiladelphiaPA1:56:05#3007
2013Caesar Rodney Half MarathonWilmingtonDE1:59:13#862
2012Rock 'n' Roll Virgina Beach Half MarathonVirginia BeachVA2:08:23#2370
2012Bear Lake Trifecta - UtahGarden CityUT2:18:42#216
20112026 Superhero Half Marathon and RelayMorristownNJ1:56:10#418
20112026 - San Antonio MarathonSan AntonioTX3:42:29#18567
20102026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San DiegoCoronadoCA1:55:31#643
2010Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:58:40#3366
20102026 - San Antonio MarathonSan AntonioTX3:08:24#17206
2009Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:50:47#3680
20092026 - San Antonio MarathonSan AntonioTX2:28:35#9382
2008Dallas Marathon WeekendDallasTX1:26:21#51
2008DEXTER-ANN ARBOR RUNDexterMI1:43:33#469
2008Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:56:09#4901
2007Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:35:04#1053
2007Philadelphia MarathonPhiladelphiaPA1:40:28#270
2007Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:51:50#3858
2005Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:34:56#707
2004Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:31:40#666
2004Laguna Hills Memorial Day Half Marathon, 5K & 10KLaguna HillsCA1:38:12#101
2003Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:33:12#716
2003Germantown Half Marathon & Mayor's Cup 5KGermantownTN1:36:11#65
2003Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA2:01:21#4357
2002Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:37:15#708
2002Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA2:03:44#3929
2001Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:30:00#523
2001Caesar Rodney Half MarathonWilmingtonDE1:35:09#186
2000Caesar Rodney Half MarathonWilmingtonDE1:52:10#574
1999Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:28:45#491
1999Rock ‘n’ Roll Philadelphia Half MarathonPhiladelphiaPA1:49:26#2568
1988The LESS Popular Brooklyn Half Marathon!BrooklynNY1:40:24#639
1987Pikes Peak AscentManitou SpringsCO4:50:21#842

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

PAPennsylvania
20 races
GAGeorgia
10 races
TXTexas
6 races
DEDelaware
5 races
VAVirginia
5 races
CACalifornia
3 races
NCNorth Carolina
2 races
WAWashington
2 races
ARArkansas
1 race
COColorado
1 race
KYKentucky
1 race
MIMichigan
1 race
NJNew Jersey
1 race
OHOhio
1 race
SCSouth Carolina
1 race
SDSouth Dakota
1 race
UTUtah
1 race
MDMaryland
0 races

50-State Challenge

18/ 51 states + DC

33 states to go