What's your biggest time improvement

I took 42' off my IM time this year. Went from 10:16 to 9:34 (both at IMWI).

 -Rob

I've only done 1 tri --a sprint in Aug 07. I will be doing my 2nd --a HIM in 2 wks.

 But I can share my running imporvements.  I started running at 27 and ran a half marathon 6 months after I started running in 2 hours. Then 2 kids and 7 years later (at age 34)I ran my first full in 4:08. A year later I ran my 2nd full in 3:42. I am 37 now and I ran a PR last year of 3:37 in the full and a hair under 1:37 for a half marathon. So in 10 years I have taken 23 minutes off my first half marathon time and in 3 years I have taken 31 minutes off my full. I hope to take more time off of both this fall.

Holy Half-marathon:  '07=1:52, '08=1:36

Steelhead HIM: '07bike= 19.5mph, '08bike=21.4mph;  '07run=2:03, '08run=1:48 (there was no swim in '08).

Just finishing up my second season, so EVERY race is pretty much an improvement!  That being said, my hard work has shown results.  The most measurable since it's the same course and similar conditions --

Blue Lake Sprint:
Year 1 - 1:44:11
Year 2 - 1:28:23

i suspect it's going to be next year, when i participate in the same tri that was my first (this year in april).

i completed that darn tri in close to 3 hours, and bet i'll complete it in half the time or better next year...

did that make sense?

Between 2007 and 2008, I took 14 minutes off the same Oly course, and 25 minutes off an "almost HIM" course (1/34/10), 16 of that on the 10 mile run alone

First oly, may this year-3:03

Second oly, Sep1 this year- 2:38

sorry, don't know how to submit a training log.

First Marathon in March of 2006: 4:31:29
Seventh Marathon in December 2007: 3:20:34 (Boston Qualifying Time)

In 7 Marathons, I took off ~70 Minutes to achieve a BQ (My main goal) over 20 Months

You are probably looking for longer distance events than a sprint for comparison, but I shaved off 29 minutes 24 seconds from my first tri ever to the same race the 2nd time around this year.

I put a table in the thread below my race report comparing last year to this year.

Race Report

Doing my first HIM this Saturday and I'm interested in what people's improvement curves have looked like as they went beyond their first year of training as well. I know I won't be able to come close to the percentage improvements I saw over the first year, but it would help a great deal with goal setting to see what other people have been able to accomplish as they continued training into years 2, 3 and beyond.

Marloboro Sprint
'05 1:30:56
'06 1:14:48
'07 1:11:34

Mooseman Oly
'05 4:21 but swim was shorter so about 4:45 if normal swim length
'06 3:45
'07 3:23

10/05 first 5K 34:54
3/08 last 5K 26:47

3/06 first 1/2 Mary 2:37
5/08 same 1/2 Mary 2:12

Easier to get big number improvements when you start out really slow. 2006 was my best year as ever race I improved tons over previous year and even from race to race. Now improvements are smaller and harder to gain but sweeter too.