Conversion Rates From HM to Marathon

It's that time of year!  Rather than use calculators I thought it would be useful to conduct a survey of runners here with regards to their conversion between a half marathon and marathon.  If you feel like participating, a few ground rules:

1)  Include your marathon time and best half marathon time in the 16 weeks leading up to the marathon day in chronological order.

2)  Include as many of these combinations as you can come up with (i.e don't just include your best / last etc).  The more data the better.

3)  Male or female?

4)  Only include raced times - i.e. don't include a HM you ran at marathon pace and don't include a marathon where you were dressed like a ball bag.

5)  We'll manage the outliers later - I'm not interested in excuses as to why your marathon was slow (e.g. weather, first time etc) just record it. 

As an example:

Paula Radcliffe - Female

2009; HM - 69:45, Mar - 2:29:27

2007; HM - 67:53, Mar - 2:23:09.

If there's enough interest I'll collate and distribute the results.

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Comments

  • Curly45Curly45 ✭✭✭

    Curly 45 open age female (I think you left out age but actually I think its important)

    2009: HM 1:56:11 Mar: 4:31:06

    Happy to be an outlier  image

  • SOYCD female 29

    2010 HM 2:02:30 Mar 4:59:51

    Reallly hoping for a better HM to marathon conversion this year but won't know til the 10th April.

  • Female,

    HM: 1:56 FM: 4:11 (36)
    HM: 1:48 FM: 3:56 (38)
    HM: 1.46 FM: 4:15 (39)
    HM: 1.54 FM: 4:08 (40)

    (Edited to put in more stuff but still leaving out all the shockers)
  • Male, 38

    2007 HM 1.38, Mar 3.42

  • BirchBirch ✭✭✭

    Dave Birch - Male - age 56

    1987 HM 1:19:45  Mar  3:01:01

    1989 HM 1:18:58  Mar 2:52:56

    1990 HM 1:15:56 Mar - DNF - (ran moronically too fast from gun)

    1991 HM 1:18:22  Mar 2:46:00 (PB - watch time, official time 2:46:27 - see Avatar)

    1992 HM 1:17:33 Mar 2:51:02

    1993 HM 1:19:15  Mar 2:51:23

    1994 HM 1:18:27  Mar  2:49:05

    1995 HM 1:18:43  Mar  2:53:54

    1997 HM 1:22:58  Mar 2:53:19

    1999 HM 1:23:47  Mar 2:56:57

    2000 HM 1:22:11  Mar  2:57:40

    2001 HM  1:24:20 Mar  2:57:50

    2002 HM  1:22:58 Mar  2:57:19

    2004 HM 1:27:42 Mar  3:07:10

    2005 HM  1:25:08  Mar - DNS (left my gear - timing chip,shoes, the lot on F**king train at Blackheath)!! 

    2006 HM 1:29:31  Mar 3:10:20

    2008 & 2010 no HM, but maras 3:15:50 & 3:17:46 in April.   August 2010 HM of 1:31:19.

    Good thread, Moraghan - be v. interested to see results/conclusions.

  • Female, was 29

    HM 2.04, FM 4.34

  • Male, 36

    2010 HM 2:03, Mar 5:03.

    I'm also hoping for a better result on 10th April (Lochaber, crazy diamond?)

  • LS21LS21 ✭✭✭

    Good idea!

    All as Senior Man these: 

    Spring 2008 - Half 1'42'30. Full 3'38'06
    Autumn 2008 - Half 1'38'xx. Full 3'39'xx

    Spring 2009 - Half 1'27'47. Full 3'12'24

    Spring 2010 - Half 1'21'12. Full 2'57'24

  • female 44

    spring 2006   HM  1:58   FM   4:34

    spring 2008  HM  1:56  FM    4:31

    spring   2010  no HM    FM     4:26

  • Male was 34

    2009 HM 1:31 (training time trial) M 3:57 (injured and limped round)

    2011 HM 1:24 (training time trial) M will let you know on the 17th!
  • Male was 32
    1:21:35/2:51:52
  • Male.  Was 35

    2005; HM 1:37; M 3:57

  • I should probably let people know the slower times too!image

    GFB - 46

    HM: 2:32 FM 5:13

  • Female - 39

    2007 - HM - 1.39   FM - 3.32

    2008 - HM - 1.37.30  FM - 3.30

    2009 - HM - 1.34    FM - 3.36 (Super Six Year - Ha Haimage)

    2010 - HM - 1.40 (only race, training run)  FM 3.27

  • Female V40

    2005 - HM 89:49 Mar 3:06.38 (hilly HM, flat Mar)

    2006 - HM - 84:15 Mar 2:56.02 (flat HM, flat Mar)

    2007 - HM - 87:24 MarMT (multi terrain) 3:12.46

    Not done a HM before a marathon since then, but plenty of 20 milers image

  • Another one on the slower end image

    Female 50

    2008 - HM: 2:28  FM 5:20

  • JoolskaJoolska ✭✭✭

    Joolska, female, under 35

    2004 - HM: 1.34 - FM: 3.28
    2006 - HM: 1.34 - FM: 3.23 (Spring)
    2006 - HM: 1.34 - FM: 3.19 (Autumn)
    2007 - HM: 1.27 - FM: 3.07 (Spring)
    2007 - HM: 1.26 - FM: 3.05 (Autumn)

    Missed 2005 and 2008 through injury.  Didn't do a flat-out half in 2009 or 2010 build ups.  And yes, I found half marathons pretty frustrating in 2004-2006.

  • RB - Male - 35

    2010 - HM: 01:41:38 FM 04:00:00

  • MinniMinni ✭✭✭

    I've had to delve into the archives to fine these - don't often do a measured half in marathon training, but...

    female, was 34
    2004 - HM 1.41  FM 3.41

    female (still!) 41
    2010 - HM 1.41, FM 3.36

    (marathon pb is 3.31 and HM 1.36 but these weren't run in the same 16 week period).

  • shaggy t   male   41-44

    2006 HM 1:42:53  FM 4:24:30
    2007 HM 1:44:25  FM 4:22:46 AND FM 3:56:31 TWO WEEKS LATER
    2008 HM 1:38:03  FM 3:50:35
    2009 HM 1:40:29  FM 3:45:10
  • Female 33

    2007 HM 1.44 FM 3.58
    2011 HM 1.37 FM......watch this space
  • Male 35
    2008 HM 1h30m53 FM 3h25m

  • female 38

    2010   HM 1.57   FM 4.49

  • RS78RS78 ✭✭✭

    Male

    2007 (age 29) Reading HM 1.27.17 London 3.22 (hot/unwell)

    2008 (age 30) Reading HM 1.25.53 London 3.08.59

    2010 (age 32) Reading HM 1.20.47 London 3.00.31

    Autumn 2010 (age 32) Notts HM 1.22.47 Amsterdam 2.58.34

  • Female 34

    2009  HM  1.43  FM  3.50

    2010a  HM  1.41  FM  3.44

    2010b  HM  1.39  FM  3.45

    2010c  HM  1.35  FM  3.28

  • this has made very interesting reading - thanks for posting everyone & moraghan for the idea

    women definately are better at converting their half times into marathon times

  • What a good idea, will there be a Moraghan Formula created from this?! From memory or I'd have to dig out my little book of race times: 

    Female, was 26
    April 2010   HM 1:36:52   April 2010  FM  3:38:38

    Female, now 27
    Sept 2010  HM  1:36:23   Oct 2010 FM 3:28:01

    Jan 2011   HM 1:34:57   March 2011   FM 3:29:12

    (Had the dreaded lurgy the week before my last marathon)

  • Female was 35

    2010 - HM: 1.33 - FM: 3.19(Spring)
    2010 - HM: 1.34 - FM: 3.15 (Autumn)

  • Male 33-36

    2008 - HM: 1:12:45 FM: 2:35:34 (33)
    2009 - HM: 1:08:08 FM: 2:25:00 (34)
    2010 - HM: 1:06:10 FM: 2:19:38 (35)
    2010 - HM: 1:07:00 FM: 2:23:47 (36)



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