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YK
Yumi Kobayashi
FemaleCalifornia2010–2026
58
Total Finishes
33
Different Races
6
States (12%)
2:00:36
PR (9:12/mi)
2:27:36
Average
+0:43:58
Slower (first to last)
Medal House
2013
Run SAN DIEGO 5K/10K/13.1
2:21:34
#3738 overall#1727 gender
2012
Wahine Half Marathon & Girls 5K
2:11:24
#288 overall#285 gender
2012
Run SAN DIEGO 5K/10K/13.1
2:25:54
#3938 overall#1978 gender
2012
San Diego Half Marathon
2:25:54
#3937 overall#1977 gender
2012
Disneyland Half Marathon Weekend
3:20:13
#12598 overall#7604 gender
2011
North Shore Classic
2:05:12
#1484 overall#567 gender
2011
Surf City Marathon
2:31:21
#8913 overall#4996 gender
2011
Surf City USA Marathon
2:31:21
#8929 overall#5004 gender
2011
Disneyland Half Marathon Weekend
2:33:10
#5621 overall#2994 gender
2010
Fargo Marathon Weekend
2:00:36
#2844 overall#1534 gender
2010
Scheels Fargo Marathon
2:00:36
#1866 overall#721 gender
2010
Disneyland Half Marathon Weekend
2:33:21
#6083 overall#3149 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:44:34 | #2383 |
| 2025 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:42:48 | #2358 |
| 2024 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:38:27 | #2759 |
| 2023 | San Diego Beach & Bay Half MarathonSan Diego | CA | 2:17:52 | #1305 |
| 2023 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:18:54 | #2454 |
| 2022 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:07:34 | #1570 |
| 2021 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:38:40 | #1900 |
| 2020 | Carlsbad MarathonCarlsbad | CA | 2:19:51 | #2213 |
| 2019 | USA Womens Marathon & Half MarathonPalm Desert | CA | 2:15:44 | #570 |
| 2019 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:46:18 | #3929 |
| 2019 | Rock 'n' Roll San DiegoSan Diego | CA | 2:51:58 | #9539 |
| 2018 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:23:04 | #2880 |
| 2017 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:12:37 | #2484 |
| 2017 | St. Jude Rock 'n' Roll SeattleSeattle | WA | 2:19:31 | #4915 |
| 2017 | Rock 'n' Roll Los Angeles Half MarathonLos Angeles | CA | 2:23:36 | #2746 |
| 2016 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:10:39 | #2594 |
| 2016 | St. Jude Rock 'n' Roll SeattleSeattle | WA | 2:15:10 | #4837 |
| 2016 | Rock 'n' Roll Half Marathon San FranciscoSan Francisco | CA | 2:17:58 | #2961 |
| 2016 | Rock 'n' Roll San JoseSan Jose | CA | 2:18:21 | #3720 |
| 2016 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:25:00 | #7957 |
| 2016 | Rock 'n' Roll San DiegoSan Diego | CA | 2:27:29 | #9229 |
| 2016 | Rock 'n' Roll Los Angeles Half MarathonLos Angeles | CA | 2:29:37 | #4104 |
| 2016 | The Kauai Marathon and Half MarathonPoipu Beach, Kauai | HI | 2:46:08 | #738 |
| 2016 | Carlsbad MarathonCarlsbad | CA | 2:46:37 | #4473 |
| 2015 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:14:09 | #6433 |
| 2015 | Rock 'n' Roll San DiegoSan Diego | CA | 2:20:24 | #7129 |
| 2015 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:24:26 | #3466 |
| 2015 | San Diego Half Marathon | — | 2:24:26 | #3468 |
| 2015 | Disneyland Half Marathon WeekendAnaheim | CA | 2:34:36 | #5147 |
| 2015 | Rock 'n' Roll Chicago Half MarathonChicago | IL | 2:41:13 | #8090 |
| 2014 | Mermaid Half MarathonSan Diego | CA | 2:15:38 | #273 |
| 2014 | Rock 'n' Roll Las VegasLas Vegas | NV | 2:22:39 | #10302 |
| 2014 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:28:20 | #4078 |
| 2014 | San Diego Half Marathon | — | 2:28:20 | #4079 |
| 2014 | Rock 'n' Roll Los Angeles Half MarathonLos Angeles | CA | 2:34:21 | #4871 |
| 2014 | Rock 'n' Roll San DiegoSan Diego | CA | 2:35:59 | #11302 |
| 2013 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:21:34 | #3738 |
| 2013 | San Diego Half Marathon | — | 2:21:34 | #3739 |
| 2013 | Safari Park Half Marathon | — | 2:29:48 | #1501 |
| 2013 | La Jolla Half Marathon, 10K, & 5KLa Jolla | CA | 2:31:43 | #4337 |
| 2013 | La Jolla Half Marathon | — | 2:31:43 | #4340 |
| 2013 | Costume Party Run | — | 2:34:46 | #1002 |
| 2013 | Carlsbad MarathonCarlsbad | CA | 2:35:19 | #5214 |
| 2013 | Tri-City Medical Center Carlsbad Marathon | — | 2:35:19 | #5213 |
| 2013 | Beer City Half San DiegoSan Diego | CA | 2:37:38 | #5695 |
| 2013 | America's Finest City Half Marathon | — | 2:37:38 | #5695 |
| 2012 | Wahine Half Marathon & Girls 5KHONOLULU | HI | 2:11:24 | #288 |
| 2012 | Run SAN DIEGO 5K/10K/13.1San Diego | CA | 2:25:54 | #3938 |
| 2012 | San Diego Half Marathon | — | 2:25:54 | #3937 |
| 2012 | Disneyland Half Marathon WeekendAnaheim | CA | 3:20:13 | #12598 |
| 2011 | North Shore ClassicHighland Park | IL | 2:05:12 | #1484 |
| 2011 | Surf City MarathonHuntington Beach | CA | 2:31:21 | #8913 |
| 2011 | Surf City USA Marathon | — | 2:31:21 | #8929 |
| 2011 | Disneyland Half Marathon WeekendAnaheim | CA | 2:33:10 | #5621 |
| 2010 | Fargo Marathon WeekendFargo | ND | 2:00:36 | #2844 |
| 2010 | Scheels Fargo Marathon | — | 2:00:36 | #1866 |
| 2010 | Disneyland Half Marathon WeekendAnaheim | CA | 2:33:21 | #6083 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
36 racesNVNevada
3 racesILIllinois
2 racesHIHawaii
2 racesWAWashington
2 racesNDNorth Dakota
1 race50-State Challenge
6/ 50 states
44 states to go