10km XC = ? time 10,000m

No. On the track, if you had 100 runners it might be just 20 seconds. However, for many of the athletes there is a fair bit of loss due to congestion. In addition, the footing is variable, you cannot always see the terrain because of the runners, the conditions are usually not as good (was pretty fast Saturday). Those at the front do not have as much of the pack difficulties. Also, on a track you are a bit freer to run at a desired pace rather than sprint out at the beginning.

The typical pack runner probably runs 100 meters long, although that is a round number based on no data at all.

Lawi is a 13:08 guy indoors and conservatively will run 27:20 this spring. He ran 28:50.

26mi235 wrote:

No. On the track, if you had 100 runners it might be just 20 seconds. However, for many of the athletes there is a fair bit of loss due to congestion. In addition, the footing is variable, you cannot always see the terrain because of the runners, the conditions are usually not as good (was pretty fast Saturday). Those at the front do not have as much of the pack difficulties. Also, on a track you are a bit freer to run at a desired pace rather than sprint out at the beginning.

The typical pack runner probably runs 100 meters long, although that is a round number based on no data at all.

thanks

At 30;30 placement all the items you mention fit in- so maybe a shade under 30 on the track is very realistic.

The guys running at the front of the race have a different metric than the guys that are number 3 on a tean finishing tenth or so and vastly different from the 5,6,7 guys on the lower placed teams.

Assuming you ran in college & hoping I'm not overstepping by asking but as a 2:35 marathoner what are your XC 10km and 10,000m PRs thanks

The all-time record is 28:06, by a guy who ran well in to the 27s, and as a general record we might guess that the course that a record (and overall record, of course, not a course record) was set on was short rather than long. They might have measured down the center of the path before but now measure the shortest line.

As for my 10,000 and XC times, I was such a poor runner in high school (despite working at it) that I only made 7th man JV my senior year. Running competitively in college was not even a thought, although I continued to run occasionally and started bicycling more and more. Finally, in grad school I started running regularly; I was much stronger by then an got down to 2L35 after several marathons. Then, my plantar fascia 'went' in a prolonged injury that led me to race on the bike Cat III, but mainly hill climbs, where I could win most of my races). My PR was 34:19 but that was set running a 15km in 51:28 and that broke my 34:50 split from a 20km race. Back then 10km were not so common and I generally raced other distances as preparation for a marathon.