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WD
William Dai
MaleCalifornia2009–2026
15
Total Finishes
11
Different Races
1
States (2%)
1:30:37
PR (6:55/mi)
1:48:18
Average
+0:30:06
Slower (first to last)
Medal House
2018
Badger Cove
1:57:53
#15 overall
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
Western Pacific
1:33:47
#8 overall#7 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
2009
Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO
1:49:20
#515 overall#360 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | Crystal Springs Trail RunWoodside | CA | 1:50:29 | #4 |
| 2026 | Diablo Trails ChallengeWalnut Creek | CA | 2:05:28 | #28 |
| 2026 | No Hands Trail RunAuburn | CA | 2:10:25 | #12 |
| 2025 | No Hands Trail RunAuburn | CA | 2:09:03 | #17 |
| 2022 | Monterey Bay Half MarathonMonterey | CA | 2:04:00 | #1566 |
| 2018 | Badger CoveLivermore | CA | 1:57:53 | #15 |
| 2014 | Rock 'n' Roll Half Marathon San FranciscoSan Francisco | CA | 1:30:37 | #80 |
| 2013 | Rock 'n' Roll Half Marathon San FranciscoSan Francisco | CA | 1:33:01 | #54 |
| 2013 | Brazen New Year's DayCastro Valley | CA | 1:55:47 | #30 |
| 2012 | Western PacificFremont | CA | 1:33:47 | #8 |
| 2012 | Rock 'n' Roll San JoseSan Jose | CA | 3:21:32 | #9137 |
| 2011 | Bay Breeze Half Marathon, 10K and 5KSan Leandro | CA | 1:33:58 | #23 |
| 2011 | Western PacificFremont | CA | 1:34:17 | #10 |
| 2011 | Rock 'n' Roll San JoseSan Jose | CA | 1:38:04 | #532 |
| 2010 | Rock 'n' Roll San JoseSan Jose | CA | 1:38:17 | #505 |
| 2009 | Rock 'n' Roll San JoseSan Jose | CA | 1:40:19 | #716 |
| 2009 | Sunrise Marathon 5K/10K/13.1 SAN FRANCISCOSan Francisco | CA | 1:49:20 | #515 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
CACalifornia
17 races50-State Challenge
1/ 51 states + DC
50 states to go