Demi Duivenvoorden

Amsterdam

Bib: 8354 F

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 54109

Gender (Female)

#0 / 24561

Top 38%

Division (F30-34)

#0 / 4161

Top 42%

Race Day Weather

54°/44°F

few clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

600 ft elev

5K· 3.11 mi

8:54/mi

27:38

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

9:10/mi

56:07

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

9:51/mi

1:26:42

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

9:38/mi

1:56:37

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

9:42/mi

2:03:14

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

9:46/mi

2:26:55

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

9:54/mi

2:57:41

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

10:01/mi

3:28:49

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

10:15/mi

4:00:40

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

9:36/mi

4:13:46

↑ 23 ft↓ 20 ft

606 ft elev

Course Elevation

227ft

Total climb

32ft

Range

589 to 621 ft

221ft

Total descent

About the height of a three-story building

The Course

Half Splits

1st Half· via Half

2:03:149:24 /mi⚡ faster

2nd Half

2:10:329:57 /mi+5.9%

Positive split — 5.9% slower in the second half

AI Race Performance Report

Demi's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

Free account · no payment

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	27:38	8:54	3.11 mi	27:38	8:54	-
10K	56:07	9:02	3.10 mi	28:29	9:10	+0:16
15K	1:26:42	9:18	3.11 mi	30:35	9:51	+0:41
20K	1:56:37	9:23	3.11 mi	29:55	9:38	-0:13
Half(13.11 mi)	2:03:14	9:24	0.68 mi	6:37	9:42	+0:04
25K	2:26:55	9:27	2.42 mi	23:41	9:46	+0:04
30K	2:57:41	9:32	3.11 mi	30:46	9:54	+0:08
35K	3:28:49	9:36	3.11 mi	31:08	10:01	+0:07
40K	4:00:40	9:41	3.10 mi	31:51	10:15	+0:14
Finish(26.22 mi)	4:13:46	9:41	1.37 mi	13:06	9:36	-0:39

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:54 /mi

Average Pace

9:41 /mi

Slowest Pace

10:15 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:09:26

51% of race

Time at Steady Pace

2:04:20

49% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:41 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

Heatmap

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Checkpoint and Segment Rankings

Checkpoint	Seg. Dist	Overall	Females	F30-34	Seg. Overall	Seg. Females	Seg. F30-34
5K	3.11 mi	24219	7368	1385	35418	12759	2275
10K	3.10 mi	25758-1539	8056-688	1497-112	27497	8847	1636
15K	3.11 mi	29529-3771	9761-1705	1786-289	35418	12759	2275
20K	3.11 mi	30050-521	10021-260	1837-51	31554	10782	1955
Half(13.11 mi)	0.68 mi	29998+52	9996+25	1829+8	29895	10082	1856
25K	2.42 mi	30002-4	10053-57	1845-16	30438	10443	1894
30K	3.11 mi	29486+516	9909+144	1813+32	28223	9679	1776
35K	3.11 mi	28674+812	9690+219	1789+24	26294	9215	1709
40K	3.10 mi	27651+1023	9404+286	1749+40	23992	8746	1654
Finish(26.22 mi)	1.37 mi	27310+341	9317+87	1733+16	23298	8652	1654

8652

Passing Analysis

No position changes recorded for this athlete.

More below

See the rest of Demi's race

Checkpoint splits, rankings, passing analysis and qualifying. One free sign-in reveals them here — and on every race you look up.

All Results

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Chicago Event Management

Race timed by

Mika Timing