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William Dai

MaleCalifornia2009–2026

15

Total Finishes

11

Distinct Races

1

States (2%)

1:30:37

PR (6:55/mi)

1:54:28

Average

+0:30:06

Slower (first to last)

Medal House

2025

No Hands Trail Run

2:09:03
#17 overall0
2018

Badger Cove

1:57:53
#15 overall0
2018

Badger Cove

1:57:53
#15 overall#14 gender
2014

Rock 'n' Roll Half Marathon San Francisco

1:30:37
#80 overall#76 gender
2013

Rock 'n' Roll Half Marathon San Francisco

1:33:01
#54 overall#50 gender
2013

Brazen New Year's Day

1:55:47
#30 overall#26 gender
2012

Rock 'n' Roll San Jose

3:21:32
#9137 overall#4410 gender
2011

Bay Breeze Half Marathon, 10K and 5K

1:33:58
#23 overall#19 gender
2011

Western Pacific

1:34:17
#10 overall#8 gender
2011

Rock 'n' Roll San Jose

1:38:04
#532 overall#445 gender
2010

Rock 'n' Roll San Jose

1:38:17
#505 overall#440 gender
2009

Rock 'n' Roll San Jose

1:40:19
#716 overall#620 gender

Performance Timeline

PR 1:30:37200920102011201120112012201320132014201820182025202620262026

Complete Race Log

YearRaceStateTimePlace
2026Crystal Springs Trail RunWoodsideCA1:50:29#4
2026Diablo Trails ChallengeWalnut CreekCA2:05:28#28
2026No Hands Trail RunAuburnCA2:10:25#12
2025No Hands Trail RunAuburnCA2:09:03#17
2018Badger CoveLivermoreCA1:57:53#15
2018Badger CoveLivermoreCA1:57:53#15
2014Rock 'n' Roll Half Marathon San FranciscoSan FranciscoCA1:30:37#80
2013Rock 'n' Roll Half Marathon San FranciscoSan FranciscoCA1:33:01#54
2013Brazen New Year's DayCastro ValleyCA1:55:47#30
2012Rock 'n' Roll San JoseSan JoseCA3:21:32#9137
2011Bay Breeze Half Marathon, 10K and 5KSan LeandroCA1:33:58#23
2011Western PacificFremontCA1:34:17#10
2011Rock 'n' Roll San JoseSan JoseCA1:38:04#532
2010Rock 'n' Roll San JoseSan JoseCA1:38:17#505
2009Rock 'n' Roll San JoseSan JoseCA1:40:19#716

States Raced

1 race 2 races 3-4 races 5+ races

State Breakdown

CACalifornia
15 races

50-State Challenge

1/ 51 states + DC

50 states to go