HalfRuns
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Duncan Seay

MaleCalifornia20142026

8

Total Finishes

6

Different Races

1

States (2%)

1:30:34

PR (6:55/mi)

2:01:23

Average

+0:19:30

Slower (first to last)

Medal House

2026

La Jolla Half Marathon & 5K

1:50:04
#557 overall
2025

Muir Woods Mt. Challenge

2:53:40
#37 overall
2016

La Jolla Half Marathon & 5K

1:43:20
#284 overall#238 gender
2016

Double Dipsea Race

3:31:30
#517 overall#352 gender
2015

Marin County Half Marathon

1:39:17
#44 overall#38 gender
2014

La Jolla Half Marathon & 5K

1:30:34
#56 overall#53 gender
2014

Whole Foods Tiburon Half Marathon

1:30:49
#12 overall#11 gender
2014

Kaiser Permanente San Francisco Half Marathon & 5K

1:31:49
#340 overall#285 gender

Performance Timeline

PR 1:30:3420141:30:3420141:30:4920141:31:4920151:39:1720161:43:2020163:31:3020252:53:4020261:50:04

Complete Race Log

YearRaceStateTimePlace
2026La Jolla Half Marathon & 5KSan DiegoCA1:50:04#557
2025Muir Woods Mt. ChallengeStinson BeachCA2:53:40#37
2016La Jolla Half Marathon & 5KSan DiegoCA1:43:20#284
2016Double Dipsea RaceStinson BeachCA3:31:30#517
2015Marin County Half MarathonSan RafaelCA1:39:17#44
2014La Jolla Half Marathon & 5KSan DiegoCA1:30:34#56
2014Whole Foods Tiburon Half MarathonBelvedere TiburonCA1:30:49#12
2014Kaiser Permanente San Francisco Half Marathon & 5KSan FranciscoCA1:31:49#340

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

CACalifornia
8 races

50-State Challenge

1/ 51 states + DC

50 states to go