Cara O'brien

Bib: 14127 F

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 26622

Gender (Female)

#0 / 11423

Top 44%

Masters (Masters Women)

#0 / 6539

Top 32%

Division (F45-49)

#0 / 1817

Top 36%

Race Day Weather

49°/39°F

light intensity drizzle

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

469 ft elev

5K· 3.11 mi

8:14/mi

25:35

↑ 97 ft↓ 345 ft1.5% grade

220 ft elev

10K· 6.21 mi

8:12/mi

51:03

↑ 79 ft↓ 138 ft0.4% grade

157 ft elev

15K· 9.32 mi

8:18/mi

1:16:49

↑ 67 ft↓ 78 ft

146 ft elev

20K· 12.43 mi

8:17/mi

1:42:34

↑ 106 ft↓ 86 ft0.1% grade

165 ft elev

Half· 13.11 mi

8:14/mi

1:48:11

↑ 19 ft↓ 37 ft0.5% grade

148 ft elev

25K· 15.53 mi

8:22/mi

2:08:28

↑ 66 ft↓ 88 ft0.2% grade

127 ft elev

30K· 18.64 mi

8:30/mi

2:34:51

↑ 181 ft↓ 148 ft0.2% grade

138 ft elev

20M

8:34/mi

2:46:30

↑ 64 ft↓ 50 ft0.2% grade

148 ft elev

21M

9:08/mi

2:55:38

↑ 106 ft↓ 24 ft1.6% grade

227 ft elev

35K· 21.75 mi

8:37/mi

3:02:05

↑ 17 ft↓ 86 ft1.7% grade

156 ft elev

23M

8:53/mi

3:13:12

↑ 23 ft↓ 63 ft0.6% grade

116 ft elev

24M

8:33/mi

3:21:45

↓ 82 ft1.3% grade

34 ft elev

40K· 24.85 mi

8:54/mi

3:29:22

↓ 20 ft0.3% grade

20 ft elev

25.2M

9:14/mi

3:32:33

↑ 13 ft↓ 16 ft0.2% grade

18 ft elev

Finish· 26.22 mi

8:13/mi

3:40:55

↑ 22 ft↓ 21 ft

17 ft elev

Course Elevation

7–469 ft

≈

×2stacked redwood trees

•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half

1:48:118:15 /mi⚡ faster

2nd Half

1:52:448:36 /mi+4.2%

Positive split — 4.2% 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	25:35	8:14	3.11 mi	25:35	8:14	-
10K	51:03	8:13	3.10 mi	25:28	8:12	-0:02
15K	1:16:49	8:14	3.11 mi	25:46	8:18	+0:06
20K	1:42:34	8:15	3.11 mi	25:45	8:17	-0:01
Half(13.11 mi)	1:48:11	8:15	0.68 mi	5:37	8:14	-0:03
25K	2:08:28	8:16	2.42 mi	20:17	8:22	+0:08
30K	2:34:51	8:18	3.11 mi	26:23	8:30	+0:08
20M	2:46:30	8:19	1.36 mi	11:39	8:34	+0:04
21M	2:55:38	8:22	1.00 mi	9:08	9:08	+0:34
35K	3:02:05	8:22	0.75 mi	6:27	8:37	-0:31
23M	3:13:12	8:24	1.25 mi	11:07	8:53	+0:16
24M	3:21:45	8:24	1.00 mi	8:33	8:33	-0:20
40K	3:29:22	8:25	0.85 mi	7:37	8:54	+0:21
25.2M	3:32:33	8:26	0.35 mi	3:11	9:14	+0:20
Finish(26.22 mi)	3:40:55	8:26	1.02 mi	8:22	8:13	-1:01

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:12 /mi

Average Pace

8:26 /mi

Slowest Pace

9:14 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

3:28:36

94% of race

Time at Steady Pace

12:19

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:26 /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	F45-49	Seg. Overall	Seg. Females	Seg. F45-49
5K	3.11 mi	15695	5092	5092	16503	5593	5593
10K	3.10 mi	15932-237	5245-153	5245-153	16233	5418	5418
15K	3.11 mi	16128-196	5367-122	5367-122	16503	5593	5593
20K	3.11 mi	15938+190	5266+101	5266+101	15548	5062	5062
Half(13.11 mi)	0.68 mi	15930+8	5263+3	5263+3	16057	5325	5325
25K	2.42 mi	15822+108	5226+37	5226+37	15373	5062	5062
30K	3.11 mi	15530+292	5087+139	5087+139	14277	4501	4501
20M	1.36 mi	15411+119	5038+49	5038+49	14114	4486	4486
21M	1.00 mi	15291+120	4991+47	4991+47	14148	4568	4568
35K	0.75 mi	15291	5000-9	5000-9	15991	5681	5681
23M	1.25 mi	15292-1	5024-24	5024-24	15437	5413	5413
24M	1.00 mi	15248+44	5008+16	5008+16	14793	5112	5112
40K	0.85 mi	15283-35	5047-39	5047-39	15677	5669	5669
25.2M	0.35 mi	15250+33	5035+12	5035+12	13877	4688	4688
Finish(26.22 mi)	1.02 mi	15163+87	5008+27	5008+27	13544	4499	4499

4499

Passing Analysis

Category:

Passed

1880

Passed By

1348

Net Change

+532

Segment	Passed	Passed By	Net Change	Start Rank	End Rank
Start → 5K	-	-	-	-	#15695
5K → 10K	190	427	-237	#15695	#15932
10K → 15K	122	318	-196	#15932	#16128
15K → 20K	263	73	+190	#16128	#15938
20K → Half	36	28	+8	#15938	#15930
Half → 25K	188	80	+108	#15930	#15822
25K → 30K	346	54	+292	#15822	#15530
30K → 20M	150	31	+119	#15530	#15411
20M → 21M	147	27	+120	#15411	#15291
21M → 35K	43	43	0	#15291	#15291
35K → 23M	86	87	-1	#15291	#15292
23M → 24M	93	49	+44	#15292	#15248
24M → 40K	51	86	-35	#15248	#15283
40K → 25.2M	49	16	+33	#15283	#15250
25.2M → Finish	116	29	+87	#15250	#15163
TOTALS	1880	1348	+532

Passing Charts

Category:

Passing Circle

Position Flow

Race Lanes

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Results processed about 1 month ago

Public Race Data

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Race managed by

Boston Athletic Association

Race timed by

Mika Timing