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KO
Kenneth O'Brien
MaleMassachusetts1993–2026
34
Total Finishes
20
Different Races
6
States (12%)
1:26:21
PR (6:35/mi)
1:59:15
Average
+0:12:10
Slower (first to last)
Medal House
2018
Metro North YMCA Half Marathon
1:44:05
#74 overall#56 gender
2017
Metro North YMCA Half Marathon
1:41:34
#25 overall#19 gender
2016
Metro North YMCA Half Marathon
1:45:56
#48 overall#37 gender
2011
Eversource Hartford Marathon, Half Marathon, Relay & Charity 5K
1:26:21
#67 overall#60 gender
2009
Publix Atlanta Marathon, Half Marathon & 5K
1:51:01
#1545 overall#1137 gender
2009
Gasparilla Distance Classic Race Weekend
1:57:47
#909 overall#649 gender
2006
Baystate Marathon
2:01:58
#597 overall#378 gender
2005
LONG ISLAND MARATHON FESTIVAL
2:46:32
#2709 overall#1705 gender
2004
Ridgefield Pamby Half Marathon
1:32:38
#57 overall#47 gender
1999
LONG ISLAND MARATHON FESTIVAL
2:18:04
#3366 overall#2335 gender
1994
LONG ISLAND MARATHON FESTIVAL
2:15:13
#4359 overall#3426 gender
1993
LONG ISLAND MARATHON FESTIVAL
2:07:04
#3385 overall#2829 gender
Performance Timeline
Complete Race Log
| Year | Race | State | Time | Place |
|---|---|---|---|---|
| 2026 | New Bedford Half MarathonNew Bedford | MA | 2:19:14 | #1464 |
| 2025 | Seacoast Half MarathonPortsmouth | NH | 1:59:07 | #385 |
| 2025 | Autumn & Ales 5K, 10K, and 1/2 MarathonScarborough | ME | 1:59:53 | #45 |
| 2025 | Autumn and Ales 10KScarborough | ME | 1:59:54 | #45 |
| 2025 | Hampton Half Marathon & 5KHampton | NH | 2:00:47 | #389 |
| 2025 | Shipyard Old Port Half MarathonPortland | ME | 2:08:51 | #1614 |
| 2024 | New Bedford Half MarathonNew Bedford | MA | 1:58:00 | #1045 |
| 2024 | Shipyard Old Port Half MarathonPortland | ME | 2:03:57 | #1170 |
| 2024 | Cape Cod Marathon WeekendFalmouth | MA | 2:04:53 | #602 |
| 2024 | Seacoast Half MarathonPortsmouth | NH | 2:06:14 | #378 |
| 2024 | Frosty Half-MarathonRaynham | MA | 2:08:26 | #288 |
| 2023 | Barns & Blooms Half MarathonSouth Hamilton | MA | 1:55:50 | #57 |
| 2023 | Cape Cod Marathon WeekendFalmouth | MA | 2:01:44 | #555 |
| 2022 | Tache Realty Wicked Half MarathonSalem | MA | 1:47:00 | #87 |
| 2022 | Total Image 5K/10KManchester | NH | 1:49:18 | #15 |
| 2022 | Cape Cod Marathon WeekendFalmouth | MA | 1:57:17 | #510 |
| 2022 | Frosty Half-MarathonRaynham | MA | 1:57:30 | #213 |
| 2022 | Seacoast Half MarathonPortsmouth | NH | 2:10:52 | #454 |
| 2021 | Indianapolis Monumental MarathonIndianapolis | IN | 2:07:01 | #2585 |
| 2019 | Shipyard Old Port Half MarathonPortland | ME | 1:49:35 | #574 |
| 2019 | Indianapolis Monumental MarathonIndianapolis | IN | 1:59:40 | #2959 |
| 2018 | Metro North YMCA Half MarathonPeabody | MA | 1:44:05 | #74 |
| 2018 | Big Lake Half MarathonAlton Bay | NH | 1:45:33 | #105 |
| 2018 | Ipswich Ale Half MarathonIpswich | MA | 1:46:42 | #128 |
| 2017 | Metro North YMCA Half MarathonPeabody | MA | 1:41:34 | #25 |
| 2016 | Metro North YMCA Half MarathonPeabody | MA | 1:45:56 | #48 |
| 2011 | Eversource Hartford Marathon, Half Marathon, Relay & Charity 5KHartford | CT | 1:26:21 | #67 |
| 2009 | Publix Atlanta Marathon, Half Marathon & 5KAtlanta | GA | 1:51:01 | #1545 |
| 2009 | Gasparilla Distance Classic Race WeekendTampa | FL | 1:57:47 | #909 |
| 2006 | Baystate MarathonLowell | MA | 2:01:58 | #597 |
| 2005 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 2:46:32 | #2709 |
| 2004 | Ridgefield Pamby Half MarathonRidgefield | CT | 1:32:38 | #57 |
| 1999 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 2:18:04 | #3366 |
| 1994 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 2:15:13 | #4359 |
| 1993 | LONG ISLAND MARATHON FESTIVALEast Meadow | NY | 2:07:04 | #3385 |
States Raced
1 race 2 races 3-4 races 5+ races
State Breakdown
MAMassachusetts
14 racesNHNew Hampshire
6 racesMEMaine
5 racesNYNew York
4 racesINIndiana
2 racesFLFlorida
1 race50-State Challenge
6/ 51 states + DC
45 states to go