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GB
Guerin Butterworth
FemaleCalifornia2004–2023
69
Total Finishes
34
Distinct Races
2
States (4%)
2:04:01
PR (9:28/mi)
2:50:52
Average
+1:07:53
Slower (first to last)
Medal House
2006
Palm Desert 1/2 Marathon & 5K
2:04:01
#312 overall#100 gender
2006
La Jolla Half Marathon & 5K
2:09:25
#2588 overall#934 gender
2006
Carlsbad Marathon
2:17:18
#2624 overall#1130 gender
2006
2026 Disneyland® Half Marathon Weekend presented by HONDA
2:22:18
#3581 overall#1619 gender
2006
Beer City Half™ San Diego
2:26:26
#4659 overall#2000 gender
2006
Rock 'n' Roll Los Angeles Half Marathon
2:31:48
#2561 overall#1056 gender
2005
Monterey Bay Half Marathon
2:14:09
#2006 overall#898 gender
2005
Palm Desert 1/2 Marathon & 5K
2:19:27
#342 overall#147 gender
2005
2026 2XU Long Beach Marathon & Half Marathon
2:19:34
#2135 overall#866 gender
2005
Beer City Half™ San Diego
2:29:39
#4575 overall#1928 gender
2005
Napa to Sonoma Wine Country Half Marathon
2:32:04
#1172 overall#643 gender
2004
2026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San Diego
2:20:30
#1146 overall#487 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2023 | Santa Barbara Wine Country Half MarathonSolvang | CA | 3:28:23 | #1295 |
| 2021 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 3:59:16 | #4714 |
| 2020 | Big Island International Marathon 2027Hilo | HI | 3:21:13 | #204 |
| 2020 | Surf City MarathonHuntington Beach | CA | 3:30:11 | #8835 |
| 2019 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 3:08:52 | #5963 |
| 2019 | Lexus Lace Up Running SeriesRancho Palos Verdes | CA | 3:23:39 | #705 |
| 2019 | Santa Barbara Wine Country Half MarathonSolvang | CA | 3:32:31 | #1117 |
| 2018 | Napa to Sonoma Wine Country Half MarathonSonoma | CA | 2:56:45 | #2288 |
| 2018 | Lexus LaceUp Running Series IrvineIrvine | CA | 2:57:01 | #534 |
| 2018 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 3:07:00 | #5594 |
| 2018 | Run MalibuMalibu | CA | 3:11:39 | #2091 |
| 2018 | Rock 'n' Roll Los Angeles Half MarathonLos Angeles | CA | 3:23:41 | #4599 |
| 2017 | Lexus Lace Up Running SeriesRancho Palos Verdes | CA | 2:56:03 | #455 |
| 2017 | Santa Clarita MarathonSanta Clarita | CA | 2:58:36 | #907 |
| 2017 | Temecula Half Marathon, 10K, 5KTemecula | CA | 3:05:24 | #676 |
| 2017 | Santa Barbara Wine Country Half MarathonSolvang | CA | 3:23:01 | #1823 |
| 2016 | Santa Barbara Wine Country Half MarathonSolvang | CA | 2:41:29 | #1334 |
| 2016 | Surf City MarathonHuntington Beach | CA | 2:43:38 | #7942 |
| 2016 | OC Marathon - Half Marathon - 5KNewport Beach | CA | 2:47:49 | #6044 |
| 2016 | 2026 Disneyland® Half Marathon Weekend presented by HONDAAnaheim | CA | 2:50:20 | #6633 |
| 2016 | Sports Craft ClassicSan Diego | CA | 2:52:42 | #1086 |
| 2016 | Palm Desert 1/2 Marathon & 5KPalm Desert | CA | 3:08:07 | #506 |
| 2015 | Palm Desert 1/2 Marathon & 5KPalm Desert | CA | 3:05:43 | #636 |
| 2015 | Napa to Sonoma Wine Country Half MarathonSonoma | CA | 3:13:37 | #2527 |
| 2015 | 2026 Avenue of the Giants MarathonArcata | CA | 4:36:35 | #1159 |
| 2014 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:59:26 | #19703 |
| 2014 | Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5KOxnard | CA | 3:10:56 | #1714 |
| 2014 | Mammoth lakes half marathonMammoth Lakes | CA | 3:16:02 | #934 |
| 2012 | Santa Barbara Wine Country Half MarathonSolvang | CA | 2:39:39 | #1879 |
| 2012 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:48:07 | #4868 |
| 2012 | Palm Desert 1/2 Marathon & 5KPalm Desert | CA | 2:48:33 | #920 |
| 2012 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:49:33 | #15762 |
| 2012 | Oregon Wine Country Half MarathonDayton | OR | 2:49:57 | #967 |
| 2012 | Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5KOxnard | CA | 2:50:30 | #1269 |
| 2012 | Healdsburg Wine Country Half MarathonHealdsburg | CA | 2:52:00 | #1811 |
| 2012 | 2026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San DiegoCoronado | CA | 2:54:17 | #2615 |
| 2012 | Camarillo MarathonCamarillo | CA | 2:54:37 | #171 |
| 2012 | Simi Valley Arroyo Creek Half Marathon, 10k/5kSimi Valley | CA | 3:40:44 | #332 |
| 2011 | Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan Francisco | CA | 2:26:37 | #2991 |
| 2011 | Simi Valley Arroyo Creek Half Marathon, 10k/5kSimi Valley | CA | 2:28:25 | #211 |
| 2011 | Beer City Half™ San DiegoSan Diego | CA | 2:30:11 | #5336 |
| 2011 | Healdsburg Wine Country Half MarathonHealdsburg | CA | 2:30:41 | #1281 |
| 2011 | Havasu Half Marathon & 5KLake Havasu City | AZ | 2:32:46 | #366 |
| 2011 | La Jolla Half Marathon & 5KSan Diego | CA | 2:33:38 | #5036 |
| 2011 | Laguna Hills Memorial Day Half Marathon, 5K & 10KLaguna Hills | CA | 2:42:00 | #1212 |
| 2011 | Santa Barbara Wine Country Half MarathonSolvang | CA | 2:43:49 | #1971 |
| 2011 | Dole Great Race of Agoura HillsAgoura Hills | CA | 3:05:36 | #1617 |
| 2010 | Healdsburg Wine Country Half MarathonHealdsburg | CA | 2:28:01 | #1300 |
| 2010 | Rock 'n' Roll Los Angeles Half MarathonLos Angeles | CA | 2:35:12 | #6250 |
| 2010 | Havasu Half Marathon & 5KLake Havasu City | AZ | 2:40:45 | #368 |
| 2010 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 2:42:07 | #6700 |
| 2010 | Dole Great Race of Agoura HillsAgoura Hills | CA | 2:54:36 | #959 |
| 2010 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:54:43 | #15246 |
| 2009 | Rock 'n' Roll San JoseSan Jose | CA | 2:18:25 | #5383 |
| 2009 | 2026 Disneyland® Half Marathon Weekend presented by HONDAAnaheim | CA | 2:20:59 | #4291 |
| 2009 | La Jolla Half Marathon & 5KSan Diego | CA | 2:22:43 | #3879 |
| 2009 | Santa Barbara Wine Country Half MarathonSolvang | CA | 2:27:05 | #1332 |
| 2009 | Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5KOxnard | CA | 2:28:42 | #312 |
| 2009 | Pasadena Half Marathon & 5KPasadena | CA | 2:34:53 | #1966 |
| 2009 | Surf City MarathonHuntington Beach | CA | 2:43:38 | #8153 |
| 2009 | Avenue Of The VinesLodi | CA | 2:43:39 | #350 |
| 2006 | Palm Desert 1/2 Marathon & 5KPalm Desert | CA | 2:04:01 | #312 |
| 2006 | La Jolla Half Marathon & 5KSan Diego | CA | 2:09:25 | #2588 |
| 2006 | Carlsbad MarathonCarlsbad | CA | 2:17:18 | #2624 |
| 2006 | 2026 Disneyland® Half Marathon Weekend presented by HONDAAnaheim | CA | 2:22:18 | #3581 |
| 2006 | Beer City Half™ San DiegoSan Diego | CA | 2:26:26 | #4659 |
| 2006 | Rock 'n' Roll Los Angeles Half MarathonLos Angeles | CA | 2:31:48 | #2561 |
| 2006 | Golden Gate HeadlandsStinson Beach | CA | 2:58:06 | #196 |
| 2005 | Monterey Bay Half MarathonMonterey | CA | 2:14:09 | #2006 |
| 2005 | Palm Desert 1/2 Marathon & 5KPalm Desert | CA | 2:19:27 | #342 |
| 2005 | 2026 2XU Long Beach Marathon & Half MarathonLong Beach | CA | 2:19:34 | #2135 |
| 2005 | Beer City Half™ San DiegoSan Diego | CA | 2:29:39 | #4575 |
| 2005 | Napa to Sonoma Wine Country Half MarathonSonoma | CA | 2:32:04 | #1172 |
| 2004 | 2026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San DiegoCoronado | CA | 2:20:30 | #1146 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
67 racesAZArizona
2 races50-State Challenge
2/ 51 states + DC
49 states to go