BOB O'BRIEN

25 races in the archive

Personal bests

Marathon

3:26:04

2005 · 7:52 /mi

Half Marathon

1:32:30

2010 · 7:03 /mi

10K

41:18

2010 · 6:39 /mi

Progression

Marathon6 finishes · best 3:26:04 in 2005 · latest 3:40:33 in 2014
3:36:403:53:202003200420052008201120142003 2003 Suntrust Richmond Marathon — 3:45:292004 2004 SunTrust Richmond Marathon — 3:29:072005 2005 SunTrust Richmond Marathon — 3:26:043:26:042008 2008 SunTrust Richmond Marathon — 3:55:532011 2011 SunTrust Richmond Marathon — 3:53:242014 2014 Anthem Richmond Marathon — 3:40:33

Lower on the chart is faster — a line falling to the right means improvement.

Half Marathon8 finishes · best 1:32:30 in 2010 · latest 1:53:13 in 2025
1:40:002:13:20201020122013201620172020202120252010 2010 McDonalds Half Marathon — 1:32:301:32:302012 2012 American Family Fitness Half Marathon — 1:41:062013 2013 American Family Fitness Half Marathon — 1:40:082016 2016 American Family Fitness Half Marathon — 2:17:392017 2017 Markel Richmond Half Marathon — 1:39:152020 2020 Richmond Half Marathon — 1:50:512021 2021 Carmax Richmond Half Marathon — 1:42:342025 2025 CarMax Richmond Half Marathon — 1:53:13

Lower on the chart is faster — a line falling to the right means improvement.

10K11 finishes · best 41:18 in 2010 · latest 1:01:51 in 2022
50:00200320042005200720082009201020112013201420222003 10K — 43:372004 10K — 45:542005 10K — 42:372007 10K — 57:212008 10K — 55:242009 10K — 55:042010 10K — 41:1841:182011 10K — 50:592013 10K — 45:572014 10K — 44:542022 10K — 1:01:51

Lower on the chart is faster — a line falling to the right means improvement.

Marathon — pace by segment6 of 6 editions shown
8:2010:00Start–10K10K–HalfHalf–20 Mile20 Mile–Finish2014 · Start to 10K · 7:47 /mi2014 · 10K to Half · 7:42 /mi2014 · Half to 20 Mile · 8:09 /mi2014 · 20 Mile to Finish · 10:07 /mi20142011 · Start to 10K · 8:45 /mi2011 · 10K to Half · 8:26 /mi2011 · Half to 20 Mile · 8:48 /mi2011 · 20 Mile to Finish · 9:41 /mi20112008 · Start to Half · 8:01 /mi2008 · Half to 20 Mile · 9:51 /mi2008 · 20 Mile to Finish · 10:07 /mi20082005 · Start to Half · 7:44 /mi2005 · Half to 20 Mile · 7:43 /mi2005 · 20 Mile to Finish · 8:18 /mi20052004 · Start to 20 Mile · 7:55 /mi2004 · 20 Mile to Finish · 8:11 /mi20042003 · Start to Half · 7:38 /mi2003 · Half to 20 Mile · 8:59 /mi2003 · 20 Mile to Finish · 10:13 /mi2003

Minutes per mile over each stretch of the course. Lower is faster, so a line rising to the right means slowing down. Colour runs pale for the earliest editions to dark for the most recent; tap a year to show or hide it.

Half Marathon — pace by segment6 of 7 editions shown
8:2010:0011:40Start–10K10K–Finish2025 · Start to 10K · 8:33 /mi2025 · 10K to Finish · 8:43 /mi20252021 · Start to 10K · 7:33 /mi2021 · 10K to Finish · 8:05 /mi20212017 · Start to 10K · 7:45 /mi2017 · 10K to Finish · 7:25 /mi20172016 · Start to 10K · 9:42 /mi2016 · 10K to Finish · 11:13 /mi20162013 · Start to 10K · 7:30 /mi2013 · 10K to Finish · 7:46 /mi20132012 · Start to 10K · 7:43 /mi2012 · 10K to Finish · 7:42 /mi2012

Minutes per mile over each stretch of the course. Lower is faster, so a line rising to the right means slowing down. Colour runs pale for the earliest editions to dark for the most recent; tap a year to show or hide it.

Race history