Pan Pacs: The story of the splits

by Evan Morrison. 26 August 2010.


Splits tell the story of a race. It’s perhaps even truer in open-water swimming than in the pool, because the races are more “spread out” over space and time. Splits are rarely kept for O.W. races, though, due to obvious logistical obstacles.

Powerhouse Timing has been working to change this - at least at the elite level. At this past weekend’s Pan Pacific 10K Championship, they captured splits at each 2K for the entire field, both men and women. And what an interesting story they tell. Here are the 2K splits, which I converted to pace-per-100m:

Women:

**
**
**2K** **4K** **6K** **8K** **10K** **total**
**JENNINGS (USA)** 1:11.4 1:11.9 1:11.3 1:13.6 1:13.4 2:00:34
**FABIAN (USA)** 1:11.3 1:11.8 1:11.4 1:13.6 1:13.6 2:00:36
**BRUNEMANN (USA)** 1:11.5 1:11.9 1:11.4 1:13.6 1:13.5 2:00:38
**ANDERSON (USA)** 1:11.7 1:11.9 1:11.3 1:13.6 1:13.6 2:00:41
**GORMAN (AUS)** 1:11.4 1:12.0 1:11.2 1:13.6 1:14.7 2:00:57
**BALAZS (CAN)** 1:11.7 1:11.9 1:12.0 1:14.0 1:17.6 2:02:23
**DEFRANCESCO (****AUS****)** 1:11.6 1:11.9 1:11.6 1:13.5 1:18.7 2:02:26
**BAKER (NZ)** 1:11.5 1:11.9 1:11.7 1:14.6 1:21.5 2:03:44
**WILLIAMS (****CAN****)** 1:11.7 1:12.0 1:14.7 1:18.2 1:15.7 2:04:07
**HOSCHKE-EDWARDS (****AUS****)** 1:11.6 1:11.9 1:12.7 1:17.9 1:18.9 2:04:21
**HANSFORD (****AUS****)** 1:12.0 1:12.2 1:16.4 1:18.9 1:21.1 2:06:52
**KIDA (JAP)** 1:11.8 1:12.4 1:16.1 1:19.2 1:24.5 2:08:00

Men:

**
**
**2K** **4K** **6K** **8K** **10K** **total**
**PETERSON (USA)** 1:12.2 1:09.5 1:09.0 1:09.2 1:08.0 1:56:00
**CRIPPEN (USA)** 1:12.7 1:09.3 1:09.0 1:09.3 1:07.9 1:56:03
**WEINBERGER (****CAN****)** 1:12.0 1:10.5 1:08.0 1:09.2 1:08.4 1:56:03
**CARMO (BRA)** 1:12.4 1:10.8 1:08.0 1:09.1 1:08.0 1:56:05
**FRAYLER (USA)** 1:12.5 1:10.5 1:08.2 1:09.2 1:14.8 1:58:23
**O'BRIEN (****AUS****)** 1:12.1 1:11.5 1:11.5 1:11.5 1:11.4 1:59:20
**ASHWOOD (****AUS****)** 1:12.3 1:11.6 1:11.2 1:11.4 1:11.7 1:59:25
**RYAN (USA)** 1:12.8 N/A N/A 1:12.2 1:11.5 1:59:26
**KLEUH (USA)** 1:12.4 N/A N/A 1:11.6 1:11.5 1:59:26
**BROWNE (****AUS****)** 1:12.3 1:11.5 1:11.0 1:11.4 1:12.1 1:59:27
**KING (****CAN****)** 1:12.2 1:11.3 1:11.3 1:11.8 1:12.0 1:59:32
**MAINSTONE (****AUS****)** 1:12.1 1:11.5 1:11.3 1:11.7 1:12.3 1:59:39
**ENDERICA (ECU)** 1:12.4 1:10.9 1:08.2 1:09.1 1:20.9 2:00:28
**CHETRAT (****CAN****)** 1:12.2 1:11.8 1:11.3 1:12.3 1:20.6 2:02:45

Some notes:


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Posted in: analysis Tags: data , elite

Comments

On 2010-08-26 12:44:10, RLM said:
For those who fell off, was it fatigue or was it realization "i'm not in this race anymore"? Looks like the "winners" (consistent splitters) just settled into a good pace and sustained it (also, "I'm in this race to the end!"). Bonking physically or bonking mentally gets similar results?

On 2010-08-26 14:36:45, Evan said:
I suppose it's a chicken-and-egg sort of problem - do you slow down because you're out of the race, or are you out of the race because you slow down? Look at Enderica in the men's race, though - he actually had a fastest split of the field from 6-8K, but then the slowest split on the last 2K. That's either bonking or injury.