Katherine Somerfield

Bib: 17914 F

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 25550

Top 44%

Gender (Female)

#0 / 10924

Top 31%

Masters (Masters Women)

#0 / 6263

Top 18%

Division (F50-54)

#0 / 1187

Top 12%

Race Day Weather

55°/45°F

scattered clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

469 ft elev

5K· 3.11 mi

7:57/mi

24:41

↑ 97 ft↓ 345 ft1.5% grade

220 ft elev

10K· 6.21 mi

7:48/mi

48:55

↑ 79 ft↓ 138 ft0.4% grade

157 ft elev

15K· 9.32 mi

7:54/mi

1:13:28

↑ 67 ft↓ 78 ft

146 ft elev

20K· 12.43 mi

8:03/mi

1:38:29

↑ 106 ft↓ 86 ft0.1% grade

165 ft elev

Half· 13.11 mi

7:56/mi

1:43:54

↑ 19 ft↓ 37 ft0.5% grade

148 ft elev

25K· 15.53 mi

8:21/mi

2:04:10

↑ 66 ft↓ 88 ft0.2% grade

127 ft elev

30K· 18.64 mi

8:21/mi

2:30:08

↑ 181 ft↓ 148 ft0.2% grade

138 ft elev

20M

9:12/mi

2:42:39

↑ 64 ft↓ 50 ft0.2% grade

148 ft elev

21M

9:12/mi

2:51:51

↑ 106 ft↓ 24 ft1.6% grade

227 ft elev

35K· 21.75 mi

8:12/mi

2:57:59

↑ 17 ft↓ 86 ft1.7% grade

156 ft elev

23M

9:23/mi

3:09:44

↑ 23 ft↓ 63 ft0.6% grade

116 ft elev

24M

8:19/mi

3:18:03

↓ 82 ft1.3% grade

34 ft elev

40K· 24.85 mi

8:19/mi

3:25:10

↓ 20 ft0.3% grade

20 ft elev

25.2M

10:47/mi

3:28:53

↑ 13 ft↓ 16 ft0.2% grade

18 ft elev

Finish· 26.22 mi

8:23/mi

3:37:26

↑ 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

1:43:547:56 /mi⚡ faster

2nd Half

1:53:328:40 /mi+9.3%

Positive split — 9.3% slower in the second half

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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	24:41	7:57	3.11 mi	24:41	7:57	-
10K	48:55	7:52	3.10 mi	24:14	7:48	-0:09
15K	1:13:28	7:53	3.11 mi	24:33	7:54	+0:06
20K	1:38:29	7:55	3.11 mi	25:01	8:03	+0:09
Half(13.11 mi)	1:43:54	7:56	0.68 mi	5:25	7:56	-0:07
25K	2:04:10	8:00	2.42 mi	20:16	8:21	+0:25
30K	2:30:08	8:03	3.11 mi	25:58	8:21	0:00
20M	2:42:39	8:08	1.36 mi	12:31	9:12	+0:51
21M	2:51:51	8:11	1.00 mi	9:12	9:12	0:00
35K	2:57:59	8:11	0.75 mi	6:08	8:12	-1:00
23M	3:09:44	8:15	1.25 mi	11:45	9:23	+1:11
24M	3:18:03	8:15	1.00 mi	8:19	8:19	-1:04
40K	3:25:10	8:15	0.85 mi	7:07	8:19	0:00
25.2M	3:28:53	8:17	0.35 mi	3:43	10:47	+2:28
Finish(26.22 mi)	3:37:26	8:18	1.02 mi	8:33	8:23	-2:24

Trend:

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

7:48 /mi

Average Pace

8:18 /mi

Slowest Pace

10:47 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

48:47

22% of race

Time at Steady Pace

2:11:28

60% of race

Time at Slower Pace

37:11

17% of race

Average Pace: 8:18 /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	F50-54	Seg. Overall	Seg. Females	Seg. F50-54
5K	3.11 mi	14232	4463	4463	12710	3629	3629
10K	3.10 mi	13402+830	3965+498	3965+498	12671	3573	3573
15K	3.11 mi	13177+225	3851+114	3851+114	12710	3629	3629
20K	3.11 mi	12824+353	3671+180	3671+180	12194	3427	3427
Half(13.11 mi)	0.68 mi	12804+20	3673-2	3673-2	12368	3523	3523
25K	2.42 mi	12645+159	3622+51	3622+51	12292	3674	3674
30K	3.11 mi	12037+608	3371+251	3371+251	9887	2657	2657
20M	1.36 mi	12106-69	3466-95	3466-95	13170	4670	4670
21M	1.00 mi	11881+225	3400+66	3400+66	9537	2982	2982
35K	0.75 mi	11754+127	3361+39	3361+39	9017	2736	2736
23M	1.25 mi	11796-42	3461-100	3461-100	13009	4908	4908
24M	1.00 mi	11590+206	3398+63	3398+63	8423	2682	2682
40K	0.85 mi	11361+229	3315+83	3315+83	7417	2357	2357
25.2M	0.35 mi	11397-36	3369-54	3369-54	13769	5430	5430
Finish(26.22 mi)	1.02 mi	11328+69	3375-6	3375-6	10912	3933	3933

3933

Passing Analysis

Category:

▲Net Change

0 passed by0 passed

Segment	Movement	Rank
Start → 5K	-	#14232
5K → 10K	61891+830	#14232 → #13402
10K → 15K	115340+225	#13402 → #13177
15K → 20K	91444+353	#13177 → #12824
20K → Half	3656+20	#12824 → #12804
Half → 25K	154313+159	#12804 → #12645
25K → 30K	45653+608	#12645 → #12037
30K → 20M	190121-69	#12037 → #12106
20M → 21M	31256+225	#12106 → #11881
21M → 35K	9136+127	#11881 → #11754
35K → 23M	170128-42	#11754 → #11796
23M → 24M	12218+206	#11796 → #11590
24M → 40K	5234+229	#11590 → #11361
40K → 25.2M	7842-36	#11361 → #11397
25.2M → Finish	48117+69	#11397 → #11328
TOTALS	10453949+2904	#14232 → #11328

Passing Visualized

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