David Sperau

Potomac, MD

Bib: 10450 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 15907

Top 45%

Gender (Male)

#0 / 9934

Masters (Masters Men)

#0 / 4070

Top 40%

Division (M50-54)

#0 / 768

Top 39%

Race Day Weather

43°/33°F

overcast clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

27 ft elev

5K· 3.11 mi

9:08/mi

28:24

↑ 279 ft↓ 164 ft0.7% grade

140 ft elev

10K· 6.21 mi

8:50/mi

55:50

↑ 103 ft↓ 217 ft0.7% grade

25 ft elev

15K· 9.32 mi

9:23/mi

1:24:58

↑ 51 ft↓ 55 ft

21 ft elev

21K· 13.05 mi

9:25/mi

2:00:05

↑ 20 ft↓ 37 ft

4 ft elev

25K· 15.53 mi

9:24/mi

2:23:26

↑ 35 ft0.2% grade

30 ft elev

30K· 18.64 mi

9:42/mi

2:53:33

↑ 58 ft↓ 57 ft

30 ft elev

35K· 21.75 mi

10:27/mi

3:26:02

↑ 98 ft↓ 92 ft

36 ft elev

40K· 24.85 mi

13:15/mi

4:07:12

↑ 36 ft↓ 53 ft0.1% grade

18 ft elev

Finish· 26.22 mi

13:32/mi

4:25:40

↑ 80 ft↓ 24 ft0.8% grade

74 ft elev

Course Elevation

3–237 ft

≈

×20story building

•▲ 764 ft climb · ▼ 717 ft descent

The Course

Half Splits

1st Half· via 21K

2:00:059:12 /mi⚡ faster

2nd Half

2:25:3511:03 /mi+21.2%

Positive split — 21.2% slower in the second half

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	28:24	9:08	3.11 mi	28:24	9:08	-
10K	55:50	8:59	3.10 mi	27:26	8:50	-0:18
15K	1:24:58	9:07	3.11 mi	29:08	9:23	+0:33
21K	2:00:05	9:12	3.73 mi	35:07	9:25	+0:02
25K	2:23:26	9:14	2.48 mi	23:21	9:24	-0:01
30K	2:53:33	9:19	3.11 mi	30:07	9:42	+0:18
35K	3:26:02	9:28	3.11 mi	32:29	10:27	+0:45
40K	4:07:12	9:57	3.10 mi	41:10	13:15	+2:48
Finish(26.22 mi)	4:25:40	10:08	1.37 mi	18:28	13:32	+0:17

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:50 /mi

Average Pace

10:08 /mi

Slowest Pace

13:32 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:53:33

65% of race

Time at Slower Pace

1:32:07

35% of race

Average Pace: 10:08 /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	M50-54	Seg. Overall	Seg. Males	Seg. M50-54
5K	3.11 mi	4590	3573	190	6609	4925	274
10K	3.10 mi	4923-333	3810-237	206-16	5370	4140	231
15K	3.11 mi	5532-609	4240-430	230-24	6609	4925	274
21K	3.73 mi	5739-207	4370-130	237-7	6376	4761	256
25K	2.48 mi	5884-145	4425-55	242-5	6628	4823	272
30K	3.11 mi	5727+157	4284+141	235+7	5628	4124	223
35K	3.11 mi	5814-87	4279+5	236-1	6873	4662	282
40K	3.10 mi	6692-878	4754-475	270-34	11439	7218	521
Finish(26.22 mi)	1.37 mi	7113-421	4990-236	297-27	12425	7821	555

7821

Passing Analysis

Category:

▼Net Change

0 passed by0* passed

Segment	Movement	Rank
Start → 5K	-	#4590
5K → 10K	40370*-333	#4590 → #4923
10K → 15K	63021*-609	#4923 → #5532
15K → 21K	30194*-207	#5532 → #5739
21K → 25K	252107*-145	#5739 → #5884
25K → 30K	99256*+157	#5884 → #5727
30K → 35K	261174*-87	#5727 → #5814
35K → 40K	90931*-878	#5814 → #6692
40K → Finish	43312*-421	#6692 → #7113
TOTALS	3288765*-2523	#4590 → #7113

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

Category:

Passing Circle

Position Flow

Race Lanes

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Results processed 20 days ago

Public Race Data

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Race managed by

U.S. Marine Corps Community Services (MCCS)

Race timed by

Timing Productions