Matthew Sieffert

Woodbridge, VA

Bib: 7963 M

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 15907

Gender (Male)

#0 / 9934

Division (M25-29)

#0 / 1724

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

8:22/mi

25:59

↑ 279 ft↓ 164 ft0.7% grade

140 ft elev

10K· 6.21 mi

8:11/mi

51:24

↑ 103 ft↓ 217 ft0.7% grade

25 ft elev

15K· 9.32 mi

8:10/mi

1:16:47

↑ 51 ft↓ 55 ft

21 ft elev

21K· 13.05 mi

8:31/mi

1:48:31

↑ 20 ft↓ 37 ft

4 ft elev

25K· 15.53 mi

9:37/mi

2:12:25

↑ 35 ft0.2% grade

30 ft elev

30K· 18.64 mi

12:13/mi

2:50:21

↑ 58 ft↓ 57 ft

30 ft elev

35K· 21.75 mi

13:49/mi

3:33:16

↑ 98 ft↓ 92 ft

36 ft elev

40K· 24.85 mi

15:35/mi

4:21:41

↑ 36 ft↓ 53 ft0.1% grade

18 ft elev

Finish· 26.22 mi

16:20/mi

4:43:57

↑ 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

1:48:318:19 /mi⚡ faster

2nd Half

2:55:2513:19 /mi+61.6%

Positive split — 61.6% slower in the second half

Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	25:59	8:22	3.11 mi	25:59	8:22	-
10K	51:24	8:16	3.10 mi	25:25	8:11	-0:11
15K	1:16:47	8:14	3.11 mi	25:23	8:10	-0:01
21K	1:48:31	8:19	3.73 mi	31:44	8:31	+0:21
25K	2:12:25	8:31	2.48 mi	23:54	9:37	+1:06
30K	2:50:21	9:08	3.11 mi	37:56	12:13	+2:36
35K	3:33:16	9:48	3.11 mi	42:55	13:49	+1:36
40K	4:21:41	10:32	3.10 mi	48:25	15:35	+1:46
Finish(26.22 mi)	4:43:57	10:50	1.37 mi	22:16	16:20	+0:45

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:10 /mi

Average Pace

10:50 /mi

Slowest Pace

16:20 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:12:25

47% of race

Time at Slower Pace

2:31:32

53% of race

Average Pace: 10:50 /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	M25-29	Seg. Overall	Seg. Males	Seg. M25-29
5K	3.11 mi	2114	1728	388	2361	1928	440
10K	3.10 mi	2437-323	1971-243	441-53	2848	2301	515
15K	3.11 mi	2399+38	1944+27	437+4	2361	1928	440
21K	3.73 mi	2549-150	2059-115	466-29	3003	2411	546
25K	2.48 mi	3221-672	2557-498	579-113	7233	5173	1042
30K	3.11 mi	5125-1904	3895-1338	819-240	11363	7433	1408
35K	3.11 mi	6783-1658	4881-986	996-177	13022	8207	1496
40K	3.10 mi	8457-1674	5840-959	1144-148	14308	8929	1609
Finish(26.22 mi)	1.37 mi	9199-742	6259-419	1225-81	14903	9296	1650

9296

Passing Analysis

Category:

▼Net Change

0 passed by0* passed

Segment	Movement	Rank
Start → 5K	-	#2114
5K → 10K	33916-323	#2114 → #2437
10K → 15K	4583*+38	#2437 → #2399
15K → 21K	18434*-150	#2399 → #2549
21K → 25K	68311*-672	#2549 → #3221
25K → 30K	191612*-1904	#3221 → #5125
30K → 35K	167214*-1658	#5125 → #6783
35K → 40K	168511*-1674	#6783 → #8457
40K → Finish	7464*-742	#8457 → #9199
TOTALS	7270185*-7085	#2114 → #9199

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

Passing Visualized

Category:

Passing Circle

Position Flow

Race Lanes

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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

Quick Links

Find another athlete or browse the full results

Search for another athlete

All Results

Browse complete race results with filtering

→

Results processed 16 days ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

U.S. Marine Corps Community Services (MCCS)

Race timed by

Timing Productions