Chester Boynton

Bib: 10878•M•Age: 22

Concord, MA

0:00

0:00

/ mi

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Overall

#0 / 7166

Top 42%

Gender (Male)

#0 / 5052

Top 47%

M20-29

#0 / 648

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

18:16

Rank: #2615

Start → 2M

18:16 | 9:08/mi

18:16

Rank: #2615

Start → 2M

18:16 | 9:08/mi

36:30

Rank: #2522 (+93)

2M → 4M

18:14 | 9:07/mi

36:30

Rank: #2522 (+93)

2M → 4M

18:14 | 9:07/mi

58:20

Rank: #3470 (-948)

4M → 6M

21:50 | 10:55/mi

58:20

Rank: #3470 (-948)

4M → 6M

21:50 | 10:55/mi

1:16:27

Rank: #3242 (+228)

6M → 8M

18:07 | 9:03/mi

1:16:27

Rank: #3242 (+228)

6M → 8M

18:07 | 9:03/mi

9.6M

1:32:16

Rank: #3174 (+68)

8M → 9.6M

15:49 | 9:53/mi

9.6M

1:32:16

Rank: #3174 (+68)

8M → 9.6M

15:49 | 9:53/mi

10M

1:34:47

Rank: #3160 (+14)

9.6M → 10M

2:31 | 6:18/mi

10M

1:34:47

Rank: #3160 (+14)

9.6M → 10M

2:31 | 6:18/mi

10.5M

1:41:19

Rank: #3152 (+8)

10M → 10.5M

6:32 | 13:04/mi

10.5M

1:41:19

Rank: #3152 (+8)

10M → 10.5M

6:32 | 13:04/mi

12M

1:56:37

Rank: #3305 (-153)

10.5M → 12M

15:18 | 10:12/mi

12M

1:56:37

Rank: #3305 (-153)

10.5M → 12M

15:18 | 10:12/mi

14M

2:18:37

Rank: #3388 (-83)

12M → 14M

22:00 | 11:00/mi

14M

2:18:37

Rank: #3388 (-83)

12M → 14M

22:00 | 11:00/mi

16M

2:33:07

Rank: #3037 (+351)

14M → 16M

14:30 | 7:15/mi

16M

2:33:07

Rank: #3037 (+351)

14M → 16M

14:30 | 7:15/mi

18M

2:57:25

Rank: #3247 (-210)

16M → 18M

24:18 | 12:09/mi

18M

2:57:25

Rank: #3247 (-210)

16M → 18M

24:18 | 12:09/mi

20M

3:16:28

Rank: #3069 (+178)

18M → 20M

19:03 | 9:31/mi

20M

3:16:28

Rank: #3069 (+178)

18M → 20M

19:03 | 9:31/mi

22M

3:36:09

Rank: #3036 (+33)

20M → 22M

19:41 | 9:50/mi

22M

3:36:09

Rank: #3036 (+33)

20M → 22M

19:41 | 9:50/mi

24M

3:58:26

Rank: #2990 (+46)

22M → 24M

22:17 | 11:09/mi

24M

3:58:26

Rank: #2990 (+46)

22M → 24M

22:17 | 11:09/mi

Finish· 26.22 mi

4:22:39

Rank: #2999 (-9)

24M → Finish

24:13 | 10:55/mi

Finish· 26.22 mi

4:22:39

Rank: #2999 (-9)

24M → Finish

24:13 | 10:55/mi

The Course

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Half Splits

1st Half· via 14M

Distance14.00 mi

Time2:18:37

Pace9:54 /mi

2nd Half✓ Faster

Distance12.22 mi

Time2:04:02

Pace10:09 /mi

📊Negative Split: 10.5% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	05:38:08	18:16	9:08	18:16	9:08	-
4M	4.00 mi	05:56:22	36:30	9:08	18:14	9:07	-0:01
6M	6.00 mi	06:18:12	58:20	9:43	21:50	10:55	+1:48
8M	8.00 mi	06:36:19	1:16:27	9:33	18:07	9:03	-1:52
9.6M	9.60 mi	06:52:08	1:32:16	9:37	15:49	9:53	+0:50
10M	10.00 mi	06:54:39	1:34:47	9:29	2:31	6:18	-3:35
10.5M	10.50 mi	07:01:11	1:41:19	9:39	6:32	13:04	+6:46
12M	12.00 mi	07:16:29	1:56:37	9:43	15:18	10:12	-2:52
14M	14.00 mi	07:38:29	2:18:37	9:54	22:00	11:00	+0:48
16M	16.00 mi	07:52:59	2:33:07	9:34	14:30	7:15	-3:45
18M	18.00 mi	08:17:17	2:57:25	9:51	24:18	12:09	+4:54
20M	20.00 mi	08:36:20	3:16:28	9:49	19:03	9:31	-2:38
22M	22.00 mi	08:56:01	3:36:09	9:49	19:41	9:50	+0:19
24M	24.00 mi	09:18:18	3:58:26	9:56	22:17	11:09	+1:19
Finish	26.22 mi	09:42:31	4:22:39	10:01	24:13	10:55	-0:14

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:18 /mi

Average Pace

10:01 /mi

Slowest Pace

13:04 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:01

6% of race

Time at Steady Pace

2:04:28

47% of race

Time at Slower Pace

2:01:10

46% of race

Average Pace: 10:01 /mi

Loading chart...

Faster pace (< avg)

Steady pace (≈ avg)

Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

0mi6.6mi13.1mi19.7mi26.2mi

Pace:

Faster

Steady

Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
2M	2.00 mi	05:38:08	18:16	9:08	18:16	9:08	#2615
4M	4.00 mi	05:56:22	36:30	9:08	18:14	9:07	#2522
6M	6.00 mi	06:18:12	58:20	9:43	21:50	10:55	#3470
8M	8.00 mi	06:36:19	1:16:27	9:33	18:07	9:03	#3242
9.6M	9.60 mi	06:52:08	1:32:16	9:37	15:49	9:53	#3174
10M	10.00 mi	06:54:39	1:34:47	9:29	2:31	6:18	#3160
10.5M	10.50 mi	07:01:11	1:41:19	9:39	6:32	13:04	#3152
12M	12.00 mi	07:16:29	1:56:37	9:43	15:18	10:12	#3305
14M	14.00 mi	07:38:29	2:18:37	9:54	22:00	11:00	#3388
16M	16.00 mi	07:52:59	2:33:07	9:34	14:30	7:15	#3037
18M	18.00 mi	08:17:17	2:57:25	9:51	24:18	12:09	#3247
20M	20.00 mi	08:36:20	3:16:28	9:49	19:03	9:31	#3069
22M	22.00 mi	08:56:01	3:36:09	9:49	19:41	9:50	#3036
24M	24.00 mi	09:18:18	3:58:26	9:56	22:17	11:09	#2990
Finish	26.22 mi	09:42:31	4:22:39	10:01	24:13	10:55	#2999

Faster pace

Steady pace

Slower pace

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 43%

Garmin Challenge

Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:03

Segment Time

10:04/mi

Pace

0.90 mi

Distance

Overall

3051

Men

2484

Division

363

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M20-29	Seg. Overall	Seg. Males	Seg. M20-29
2M	2.00 mi	2.00 mi	2615	2168	316	4335(Top 60%)	3364(Top 67%)	482(Top 74%)
4M	4.00 mi	2.00 mi	2522+93	2106+62	313+3	2471(Top 34%)	2060(Top 41%)	306(Top 47%)
6M	6.00 mi	2.00 mi	3470-948	2805-699	404-91	5208(Top 73%)	3911(Top 77%)	538(Top 83%)
8M	8.00 mi	2.00 mi	3242+228	2647+158	384+20	2644(Top 37%)	2204(Top 44%)	339(Top 52%)
9.6M	9.60 mi	1.60 mi	3174+68	2597+50	379+5	3002(Top 42%)	2459(Top 49%)	364(Top 56%)
10M	10.00 mi	0.40 mi	3160+14	2586+11	377+2	2405(Top 34%)	2012(Top 40%)	298(Top 46%)
10.5M	10.50 mi	0.50 mi	3152+8	2576+10	376+1	3378(Top 47%)	2700(Top 53%)	388(Top 60%)
12M	12.00 mi	1.50 mi	3305-153	2680-104	388-12	4335(Top 60%)	3364(Top 67%)	482(Top 74%)
14M	14.00 mi	2.00 mi	3388-83	2731-51	398-10	3950(Top 55%)	3096(Top 61%)	436(Top 67%)
16M	16.00 mi	2.00 mi	3037+351	2479+252	362+36	1292(Top 18%)	1094(Top 22%)	172(Top 27%)
18M	18.00 mi	2.00 mi	3247-210	2616-137	374-12	4557(Top 64%)	3390(Top 67%)	467(Top 72%)
20M	20.00 mi	2.00 mi	3069+178	2474+142	351+23	2088(Top 29%)	1698(Top 34%)	250(Top 39%)
22M	22.00 mi	2.00 mi	3036+33	2438+36	345+6	2962(Top 41%)	2272(Top 45%)	312(Top 48%)
24M	24.00 mi	2.00 mi	2990+46	2389+49	337+8	2969(Top 41%)	2219(Top 44%)	297(Top 46%)
Finish	26.22 mi	2.22 mi	2999-9	2378+11	333+4	3372(Top 47%)	2466(Top 49%)	348(Top 54%)

348

Passing Analysis

Category:

Athletes Passed

1432*

Passed By

1816

Net Change

-384

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#2615
2M → 4M	165*	72	+93	#2615	#2522
4M → 6M	11	959	-948	#2522	#3470
6M → 8M	232*	4	+228	#3470	#3242
8M → 9.6M	97*	29	+68	#3242	#3174
9.6M → 10M	16	2	+14	#3174	#3160
10M → 10.5M	42	34	+8	#3160	#3152
10.5M → 12M	20	173	-153	#3152	#3305
12M → 14M	31*	114	-83	#3305	#3388
14M → 16M	352*	1	+351	#3388	#3037
16M → 18M	33	243	-210	#3037	#3247
18M → 20M	187*	9	+178	#3247	#3069
20M → 22M	75*	42	+33	#3069	#3036
22M → 24M	101*	55	+46	#3036	#2990
24M → Finish	70*	79	-9	#2990	#2999
TOTALS	1432*	1816	-384

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

📊

Passing Visuals

Category:

🔥Passing Intensity

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

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Results processed 13 days ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

The San Francisco Marathon

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Race Place Events

Chester Boynton

⏱️ Race Timeline

The Course

Claim it — unlock a deeper AI report on this race, free

Half Splits

Checkpoint Splits

Checkpoints & Pacing

📈Pace Line

Pace Progression

📊Segments

Segment Time Comparison

🎨Heatmap

Pace Heatmap

✨Sparklines

Checkpoint Splits with Pace Trends

Garmin Challenge

Checkpoint and Segment Rankings

Segment Performance Analysis

10.5M→12M

2M→4M

4M→6M

6M→8M

8M→9.6M

9.6M→10M

10M→10.5M

10.5M→12M

12M→14M

14M→16M

16M→18M

18M→20M

20M→22M

22M→24M

24M→Finish

Passing Analysis

Passing Visuals

🔥Passing Intensity

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

Age Grade

Export Track Data

Questions or issues regarding timing data?

Quick Links

All Results

Race Analytics

Course Information

Contact Time Management

Public Race Data