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WO
William O'Sullivan
MaleIllinois1999–2026
25
Total Finishes
9
Different Races
4
States (8%)
1:38:53
PR (7:33/mi)
1:51:30
Average
+0:18:37
Slower (first to last)
Medal House
2013
Springfield Marathon
1:41:57
#40 overall#30 gender
2013
Lincoln Memorial Half Marathon
1:51:42
#298 overall#219 gender
2012
Lincoln Memorial Half Marathon
1:40:03
#139 overall#116 gender
2012
2025 500 Festival Running Events
1:42:18
#1435 overall#1240 gender
2012
St. Jude Memphis Marathon Weekend
1:55:57
#831 overall#513 gender
2009
2025 500 Festival Running Events
1:42:33
#2349 overall#1997 gender
2009
Lincoln Memorial Half Marathon
1:44:20
#146 overall#123 gender
2009
45th Lincoln Memorial Half Marathon
1:44:20
#146 overall#123 gender
2009
Rock 'n' Roll Nashville
1:54:22
#1945 overall#1383 gender
2008
Lincoln Memorial Half Marathon
1:43:02
#152 overall#131 gender
2005
Lincoln Memorial Half Marathon
1:48:50
#72 overall#63 gender
1999
Greater Buffalo Track Club Grand Island Half Marathon
1:57:42
#223 overall#183 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | 2025 500 Festival Running EventsIndianapolis | IN | 1:53:31 | #3997 |
| 2026 | Sri Chinmoy 24 & 12-Hour RacesCongers | NY | 2:04:41 | #21 |
| 2026 | Lincoln Memorial Half MarathonSpringfield | IL | 2:16:19 | #600 |
| 2025 | Lincoln Memorial Half MarathonSpringfield | IL | 1:51:10 | #195 |
| 2025 | 14th Annual Springfield Marathon & Harvest Wind Half Marathon & 10KNew Berlin | IL | 1:54:17 | #31 |
| 2024 | Lincoln Memorial Half MarathonSpringfield | IL | 1:55:13 | #247 |
| 2023 | Lincoln Memorial Half MarathonSpringfield | IL | 1:54:55 | #206 |
| 2020 | Lincoln Memorial Half MarathonSpringfield | IL | 2:07:00 | #235 |
| 2018 | Lincoln Memorial Half MarathonSpringfield | IL | 1:49:15 | #165 |
| 2018 | Springfield MarathonSpringfield | IL | 1:49:44 | #22 |
| 2017 | Lincoln Memorial Half MarathonSpringfield | IL | 1:51:13 | #238 |
| 2017 | St. Jude Memphis Marathon WeekendMemphis | TN | 1:55:59 | #1057 |
| 2015 | St. Jude Memphis Marathon WeekendMemphis | TN | 1:52:33 | #672 |
| 2014 | Lincoln Memorial Half MarathonSpringfield | IL | 1:38:53 | #113 |
| 2013 | Springfield MarathonSpringfield | IL | 1:41:57 | #40 |
| 2013 | Lincoln Memorial Half MarathonSpringfield | IL | 1:51:42 | #298 |
| 2012 | Lincoln Memorial Half MarathonSpringfield | IL | 1:40:03 | #139 |
| 2012 | 2025 500 Festival Running EventsIndianapolis | IN | 1:42:18 | #1435 |
| 2012 | St. Jude Memphis Marathon WeekendMemphis | TN | 1:55:57 | #831 |
| 2009 | 2025 500 Festival Running EventsIndianapolis | IN | 1:42:33 | #2349 |
| 2009 | Lincoln Memorial Half MarathonSpringfield | IL | 1:44:20 | #146 |
| 2009 | 45th Lincoln Memorial Half Marathon | — | 1:44:20 | #146 |
| 2009 | Rock 'n' Roll NashvilleNashville | TN | 1:54:22 | #1945 |
| 2008 | Lincoln Memorial Half MarathonSpringfield | IL | 1:43:02 | #152 |
| 2005 | Lincoln Memorial Half MarathonSpringfield | IL | 1:48:50 | #72 |
| 1999 | Greater Buffalo Track Club Grand Island Half MarathonGrand Island | NY | 1:57:42 | #223 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
ILIllinois
16 racesTNTennessee
4 racesINIndiana
3 racesNYNew York
2 races50-State Challenge
4/ 50 states
46 states to go