Brianna Jefferson

Cambridge, MA

Bib: 15003 F

0:00

0:00

/ mi

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Overall

#0 / 30047

Gender (Female)

#0 / 12338

Top 45%

Division (F20-24)

#0 / 1404

Race Day Weather

42°/32°F

broken clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

27 ft elev

5K· 3.11 mi

10:51/mi

33:44

↑ 279 ft↓ 164 ft0.7% grade

140 ft elev

10K· 6.21 mi

10:02/mi

1:04:55

↑ 103 ft↓ 217 ft0.7% grade

25 ft elev

15K· 9.32 mi

10:12/mi

1:36:37

↑ 51 ft↓ 55 ft

21 ft elev

21K· 13.05 mi

10:20/mi

2:15:09

↑ 20 ft↓ 37 ft

4 ft elev

25K· 15.53 mi

10:00/mi

2:40:00

↑ 35 ft0.2% grade

30 ft elev

30K· 18.64 mi

10:37/mi

3:12:59

↑ 58 ft↓ 57 ft

30 ft elev

35K· 21.75 mi

11:47/mi

3:49:36

↑ 98 ft↓ 92 ft

36 ft elev

40K· 24.85 mi

13:13/mi

4:30:41

↑ 36 ft↓ 53 ft0.1% grade

18 ft elev

Finish· 26.22 mi

13:16/mi

4:48:47

↑ 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

2:15:0910:21 /mi⚡ faster

2nd Half

2:33:3711:40 /mi+13.7%

Positive split — 13.7% slower in the second half

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Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	33:44	10:51	3.11 mi	33:44	10:51	-
10K	1:04:55	10:27	3.10 mi	31:11	10:02	-0:49
15K	1:36:37	10:22	3.11 mi	31:42	10:12	+0:10
21K	2:15:09	10:21	3.73 mi	38:32	10:20	+0:08
25K	2:40:00	10:18	2.48 mi	24:51	10:00	-0:20
30K	3:12:59	10:21	3.11 mi	32:59	10:37	+0:37
35K	3:49:36	10:33	3.11 mi	36:37	11:47	+1:10
40K	4:30:41	10:53	3.10 mi	41:05	13:13	+1:26
Finish(26.22 mi)	4:48:47	11:01	1.37 mi	18:06	13:16	+0:03

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:00 /mi

Average Pace

11:01 /mi

Slowest Pace

13:16 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

24:51

9% of race

Time at Steady Pace

2:48:08

58% of race

Time at Slower Pace

1:35:48

33% of race

Average Pace: 11:01 /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	F20-24	Seg. Overall	Seg. Females	Seg. F20-24
5K	3.11 mi	17185	5709	894	15949	5165	825
10K	3.10 mi	16486+699	5367+342	844+50	15917	5113	800
15K	3.11 mi	16200+286	5239+128	833+11	15949	5165	825
21K	3.73 mi	15623+577	5006+233	794+39	14961	4768	768
25K	2.48 mi	15102+521	4838+168	772+22	13543	4337	737
30K	3.11 mi	14580+522	4701+137	760+12	13166	4392	746
35K	3.11 mi	14758-178	4902-201	794-34	15996	6053	921
40K	3.10 mi	15529-771	5373-471	864-70	19010	7592	1081
Finish(26.22 mi)	1.37 mi	15869-340	5580-207	893-29	19991	7957	1156

7957

Passing Analysis

Category:

▲Net Change

0 passed by0* passed

Segment	Movement	Rank
Start → 5K	-	#17185
5K → 10K	184883*+699	#17185 → #16486
10K → 15K	183469*+286	#16486 → #16200
15K → 21K	137714*+577	#16200 → #15623
21K → 25K	56577*+521	#15623 → #15102
25K → 30K	108630*+522	#15102 → #14580
30K → 35K	529351*-178	#14580 → #14758
35K → 40K	905134*-771	#14758 → #15529
40K → Finish	38141*-340	#15529 → #15869
TOTALS	24833799*+1316	#17185 → #15869

* 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

Enhanced athlete results built from publicly available data.

Race managed by

U.S. Marine Corps Community Services (MCCS)

Race timed by

Timing Productions