John Kershaw

Bib: 27838 M

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 28404

Gender (Male)

#0 / 16105

Masters (Masters Men)

#0 / 10463

Division (M55-59)

#0 / 1648

Race Day Weather

50°/40°F

broken clouds

Race Timeline

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

469 ft elev

5K· 3.11 mi

10:14/mi

31:47

↑ 97 ft↓ 345 ft1.5% grade

220 ft elev

10K· 6.21 mi

10:24/mi

1:04:05

↑ 79 ft↓ 138 ft0.4% grade

157 ft elev

15K· 9.32 mi

10:04/mi

1:35:23

↑ 67 ft↓ 78 ft

146 ft elev

20K· 12.43 mi

10:22/mi

2:07:34

↑ 106 ft↓ 86 ft0.1% grade

165 ft elev

Half· 13.11 mi

9:59/mi

2:14:23

↑ 19 ft↓ 37 ft0.5% grade

148 ft elev

25K· 15.53 mi

10:48/mi

2:40:34

↑ 66 ft↓ 88 ft0.2% grade

127 ft elev

30K· 18.64 mi

11:21/mi

3:15:51

↑ 181 ft↓ 148 ft0.2% grade

138 ft elev

20M

11:21/mi

3:31:16

↑ 64 ft↓ 50 ft0.2% grade

148 ft elev

21M

11:41/mi

3:42:57

↑ 106 ft↓ 24 ft1.6% grade

227 ft elev

35K· 21.75 mi

11:02/mi

3:51:12

↑ 17 ft↓ 86 ft1.7% grade

156 ft elev

23M

11:01/mi

4:05:00

↑ 23 ft↓ 63 ft0.6% grade

116 ft elev

24M

10:58/mi

4:15:58

↓ 82 ft1.3% grade

34 ft elev

40K· 24.85 mi

11:15/mi

4:25:35

↓ 20 ft0.3% grade

20 ft elev

25.2M

12:54/mi

4:30:02

↑ 13 ft↓ 16 ft0.2% grade

18 ft elev

Finish· 26.22 mi

9:58/mi

4:40:11

↑ 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

2:14:2310:15 /mi⚡ faster

2nd Half

2:25:4811:07 /mi+8.5%

Positive split — 8.5% slower in the second half

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See your splits, ranks & AI insights.

Checkpoint Splits

Checkpoint	Time	Avg Pace	Segment Length	Segment Time	Segment Pace	Diff
5K	31:47	10:14	3.11 mi	31:47	10:14	-
10K	1:04:05	10:19	3.10 mi	32:18	10:24	+0:10
15K	1:35:23	10:14	3.11 mi	31:18	10:04	-0:20
20K	2:07:34	10:16	3.11 mi	32:11	10:22	+0:18
Half(13.11 mi)	2:14:23	10:15	0.68 mi	6:49	9:59	-0:23
25K	2:40:34	10:20	2.42 mi	26:11	10:48	+0:49
30K	3:15:51	10:30	3.11 mi	35:17	11:21	+0:33
20M	3:31:16	10:34	1.36 mi	15:25	11:21	0:00
21M	3:42:57	10:37	1.00 mi	11:41	11:41	+0:20
35K	3:51:12	10:38	0.75 mi	8:15	11:02	-0:39
23M	4:05:00	10:39	1.25 mi	13:48	11:01	-0:01
24M	4:15:58	10:40	1.00 mi	10:58	10:58	-0:03
40K	4:25:35	10:41	0.85 mi	9:37	11:15	+0:17
25.2M	4:30:02	10:43	0.35 mi	4:27	12:54	+1:39
Finish(26.22 mi)	4:40:11	10:42	1.02 mi	10:09	9:58	-2:56

Trend:

Faster pace

Steady pace

Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:58 /mi

Average Pace

10:42 /mi

Slowest Pace

12:54 /mi

Loading chart...

Fastest

Middle

Slowest

Average

Segments

Time at Faster Pace

2:24:32

52% of race

Time at Steady Pace

1:08:49

25% of race

Time at Slower Pace

1:06:50

24% of race

Average Pace: 10:41 /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	M55-59	Seg. Overall	Seg. Males	Seg. M55-59
5K	3.11 mi	26134	15236	15236	25144	14777	14777
10K	3.10 mi	26109+25	15213+23	15213+23	26091	15185	15185
15K	3.11 mi	25789+320	15063+150	15063+150	25144	14777	14777
20K	3.11 mi	25546+243	14950+113	14950+113	24927	14646	14646
Half(13.11 mi)	0.68 mi	25514+32	14931+19	14931+19	24809	14579	14579
25K	2.42 mi	25399+115	14861+70	14861+70	24902	14608	14608
30K	3.11 mi	25248+151	14768+93	14768+93	24624	14372	14372
20M	1.36 mi	25181+67	14716+52	14716+52	24270	14114	14114
21M	1.00 mi	25080+101	14669+47	14669+47	22995	13441	13441
35K	0.75 mi	25068+12	14649+20	14649+20	24253	14003	14003
23M	1.25 mi	24990+78	14603+46	14603+46	23271	13465	13465
24M	1.00 mi	24947+43	14568+35	14568+35	23925	13792	13792
40K	0.85 mi	24906+41	14537+31	14537+31	23668	13601	13601
25.2M	0.35 mi	24907-1	14535+2	14535+2	24893	14205	14205
Finish(26.22 mi)	1.02 mi	24864+43	14506+29	14506+29	22809	13182	13182

13182

Passing Analysis

Category:

Passed

1702

Passed By

432

Net Change

+1270

Segment	Passed	Passed By	Net Change	Start Rank	End Rank
Start → 5K	-	-	-	-	#26134
5K → 10K	183	158	+25	#26134	#26109
10K → 15K	332	12	+320	#26109	#25789
15K → 20K	270	27	+243	#25789	#25546
20K → Half	41	9	+32	#25546	#25514
Half → 25K	158	43	+115	#25514	#25399
25K → 30K	208	57	+151	#25399	#25248
30K → 20M	91	24	+67	#25248	#25181
20M → 21M	113	12	+101	#25181	#25080
21M → 35K	33	21	+12	#25080	#25068
35K → 23M	88	10	+78	#25068	#24990
23M → 24M	59	16	+43	#24990	#24947
24M → 40K	57	16	+41	#24947	#24906
40K → 25.2M	11	12	-1	#24906	#24907
25.2M → Finish	58	15	+43	#24907	#24864
TOTALS	1702	432	+1270

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