David Marshall

Clontarf

Bib: 8130 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 54109

Top 9%

Gender (Male)

#0 / 29548

Top 15%

Masters (Masters Men)

#0 / 14666

Top 10%

Division (M45-49)

#0 / 3637

Top 12%

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

6:48/mi

21:08

↑ 52 ft↓ 48 ft

601 ft elev

10K· 6.21 mi

6:50/mi

42:21

↑ 25 ft↓ 31 ft

593 ft elev

15K· 9.32 mi

6:42/mi

1:03:11

↑ 12 ft↓ 13 ft

593 ft elev

20K· 12.43 mi

6:51/mi

1:24:27

↑ 18 ft↓ 17 ft

596 ft elev

Half· 13.11 mi

7:01/mi

1:29:14

↑ 13 ft0.2% grade

603 ft elev

25K· 15.53 mi

6:51/mi

1:45:50

↑ 22 ft↓ 30 ft

597 ft elev

30K· 18.64 mi

6:58/mi

2:07:28

↑ 13 ft↓ 12 ft

597 ft elev

35K· 21.75 mi

7:23/mi

2:30:23

↑ 27 ft↓ 27 ft

597 ft elev

40K· 24.85 mi

7:49/mi

2:54:41

↑ 16 ft↓ 11 ft

602 ft elev

Finish· 26.22 mi

7:25/mi

3:04:48

↑ 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

1:29:146:48 /mi⚡ faster

2nd Half

1:35:347:17 /mi+7.1%

Positive split — 7.1% slower in the second half

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	21:08	6:48	3.11 mi	21:08	6:48	-
10K	42:21	6:49	3.10 mi	21:13	6:50	+0:02
15K	1:03:11	6:47	3.11 mi	20:50	6:42	-0:08
20K	1:24:27	6:48	3.11 mi	21:16	6:51	+0:09
Half(13.11 mi)	1:29:14	6:48	0.68 mi	4:47	7:01	+0:10
25K	1:45:50	6:49	2.42 mi	16:36	6:51	-0:10
30K	2:07:28	6:50	3.11 mi	21:38	6:58	+0:07
35K	2:30:23	6:55	3.11 mi	22:55	7:23	+0:25
40K	2:54:41	7:02	3.10 mi	24:18	7:49	+0:26
Finish(26.22 mi)	3:04:48	7:03	1.37 mi	10:07	7:25	-0:24

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:42 /mi

Average Pace

7:03 /mi

Slowest Pace

7:49 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:07:28

69% of race

Time at Steady Pace

57:20

31% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:03 /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	Males	M45-49	Seg. Overall	Seg. Males	Seg. M45-49
5K	3.11 mi	4964	4471	428	4484	4108	368
10K	3.10 mi	4824+140	4359+112	412+16	4757	4314	403
15K	3.11 mi	4699+125	4269+90	394+18	4484	4108	368
20K	3.11 mi	4737-38	4307-38	392+2	4916	4451	424
Half(13.11 mi)	0.68 mi	4775-38	4343-36	402-10	5547	4946	502
25K	2.42 mi	4751+24	4313+30	398+4	4790	4321	408
30K	3.11 mi	4683+68	4236+77	388+10	4717	4228	412
35K	3.11 mi	4905-222	4406-170	419-31	5910	5024	572
40K	3.10 mi	5003-98	4448-42	457-38	7265	5730	691
Finish(26.22 mi)	1.37 mi	4972+31	4407+41	454+3	5973	4751	522

4751

Passing Analysis

No position changes recorded for this athlete.

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All Results

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Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

Chicago Event Management

Race timed by

Mika Timing