Samantha Costello

Bib: 9576•F•Age: 42

Fairfield, CA

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 7166

Gender (Female)

#0 / 2086

Masters (Masters Women)

#0 / 458

Division (F40-44)

#0 / 157

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

21:59

Rank: #5837

Start → 2M

21:59 | 10:59/mi

21:59

Rank: #5837

Start → 2M

21:59 | 10:59/mi

44:47

Rank: #5977 (-140)

2M → 4M

22:48 | 11:24/mi

44:47

Rank: #5977 (-140)

2M → 4M

22:48 | 11:24/mi

1:07:12

Rank: #5783 (+194)

4M → 6M

22:25 | 11:12/mi

1:07:12

Rank: #5783 (+194)

4M → 6M

22:25 | 11:12/mi

1:29:48

Rank: #5858 (-75)

6M → 8M

22:36 | 11:18/mi

1:29:48

Rank: #5858 (-75)

6M → 8M

22:36 | 11:18/mi

9.6M

1:48:52

Rank: #5763 (+95)

8M → 9.6M

19:04 | 11:55/mi

9.6M

1:48:52

Rank: #5763 (+95)

8M → 9.6M

19:04 | 11:55/mi

10M

1:52:17

Rank: #5780 (-17)

9.6M → 10M

3:25 | 8:33/mi

10M

1:52:17

Rank: #5780 (-17)

9.6M → 10M

3:25 | 8:33/mi

10.5M

1:59:38

Rank: #5716 (+64)

10M → 10.5M

7:21 | 14:42/mi

10.5M

1:59:38

Rank: #5716 (+64)

10M → 10.5M

7:21 | 14:42/mi

12M

2:18:40

Rank: #5850 (-134)

10.5M → 12M

19:02 | 12:41/mi

12M

2:18:40

Rank: #5850 (-134)

10.5M → 12M

19:02 | 12:41/mi

14M

2:42:53

Rank: #5739 (+111)

12M → 14M

24:13 | 12:06/mi

14M

2:42:53

Rank: #5739 (+111)

12M → 14M

24:13 | 12:06/mi

16M

3:02:13

Rank: #5571 (+168)

14M → 16M

19:20 | 9:40/mi

16M

3:02:13

Rank: #5571 (+168)

14M → 16M

19:20 | 9:40/mi

18M

3:30:59

Rank: #5700 (-129)

16M → 18M

28:46 | 14:23/mi

18M

3:30:59

Rank: #5700 (-129)

16M → 18M

28:46 | 14:23/mi

20M

3:54:20

Rank: #5587 (+113)

18M → 20M

23:21 | 11:40/mi

20M

3:54:20

Rank: #5587 (+113)

18M → 20M

23:21 | 11:40/mi

22M

4:15:52

Rank: #5450 (+137)

20M → 22M

21:32 | 10:46/mi

22M

4:15:52

Rank: #5450 (+137)

20M → 22M

21:32 | 10:46/mi

24M

4:42:51

Rank: #5431 (+19)

22M → 24M

26:59 | 13:30/mi

24M

4:42:51

Rank: #5431 (+19)

22M → 24M

26:59 | 13:30/mi

Finish· 26.22 mi

5:12:58

Rank: #5472 (-41)

24M → Finish

30:07 | 13:34/mi

Finish· 26.22 mi

5:12:58

Rank: #5472 (-41)

24M → Finish

30:07 | 13:34/mi

The Course

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Half Splits

1st Half· via 14M

Distance14.00 mi

Time2:42:53

Pace11:38 /mi

2nd Half✓ Faster

Distance12.22 mi

Time2:30:05

Pace12:17 /mi

📊Negative Split: 7.9% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	05:53:27	21:59	10:59	21:59	10:59	-
4M	4.00 mi	06:16:15	44:47	11:12	22:48	11:24	+0:25
6M	6.00 mi	06:38:40	1:07:12	11:12	22:25	11:12	-0:12
8M	8.00 mi	07:01:16	1:29:48	11:13	22:36	11:18	+0:06
9.6M	9.60 mi	07:20:20	1:48:52	11:20	19:04	11:55	+0:37
10M	10.00 mi	07:23:45	1:52:17	11:14	3:25	8:33	-3:22
10.5M	10.50 mi	07:31:06	1:59:38	11:24	7:21	14:42	+6:09
12M	12.00 mi	07:50:08	2:18:40	11:33	19:02	12:41	-2:01
14M	14.00 mi	08:14:21	2:42:53	11:38	24:13	12:06	-0:35
16M	16.00 mi	08:33:41	3:02:13	11:23	19:20	9:40	-2:26
18M	18.00 mi	09:02:27	3:30:59	11:43	28:46	14:23	+4:43
20M	20.00 mi	09:25:48	3:54:20	11:43	23:21	11:40	-2:43
22M	22.00 mi	09:47:20	4:15:52	11:38	21:32	10:46	-0:54
24M	24.00 mi	10:14:19	4:42:51	11:47	26:59	13:30	+2:44
Finish	26.22 mi	10:44:26	5:12:58	11:57	30:07	13:34	+0:04

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

8:33 /mi

Average Pace

11:57 /mi

Slowest Pace

14:42 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:17

14% of race

Time at Steady Pace

2:36:26

50% of race

Time at Slower Pace

1:52:15

36% of race

Average Pace: 11:56 /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	05:53:27	21:59	10:59	21:59	10:59	#5837
4M	4.00 mi	06:16:15	44:47	11:12	22:48	11:24	#5977
6M	6.00 mi	06:38:40	1:07:12	11:12	22:25	11:12	#5783
8M	8.00 mi	07:01:16	1:29:48	11:13	22:36	11:18	#5858
9.6M	9.60 mi	07:20:20	1:48:52	11:20	19:04	11:55	#5763
10M	10.00 mi	07:23:45	1:52:17	11:14	3:25	8:33	#5780
10.5M	10.50 mi	07:31:06	1:59:38	11:24	7:21	14:42	#5716
12M	12.00 mi	07:50:08	2:18:40	11:33	19:02	12:41	#5850
14M	14.00 mi	08:14:21	2:42:53	11:38	24:13	12:06	#5739
16M	16.00 mi	08:33:41	3:02:13	11:23	19:20	9:40	#5571
18M	18.00 mi	09:02:27	3:30:59	11:43	28:46	14:23	#5700
20M	20.00 mi	09:25:48	3:54:20	11:43	23:21	11:40	#5587
22M	22.00 mi	09:47:20	4:15:52	11:38	21:32	10:46	#5450
24M	24.00 mi	10:14:19	4:42:51	11:47	26:59	13:30	#5431
Finish	26.22 mi	10:44:26	5:12:58	11:57	30:07	13:34	#5472

Faster pace

Steady pace

Slower pace

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 74%

Garmin Challenge

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

10:46

Segment Time

11:58/mi

Pace

0.90 mi

Distance

Overall

5317

Women

1356

Division

105

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Females	F40-44	Seg. Overall	Seg. Females	Seg. F40-44
2M	2.00 mi	2.00 mi	5837	1517	120	6446(Top 90%)	1766(Top 85%)	133(Top 85%)
4M	4.00 mi	2.00 mi	5977-140	1577-60	120	6044(Top 84%)	1604(Top 77%)	123(Top 78%)
6M	6.00 mi	2.00 mi	5783+194	1509+68	115+5	5611(Top 78%)	1438(Top 69%)	108(Top 69%)
8M	8.00 mi	2.00 mi	5858-75	1534-25	122-7	6115(Top 85%)	1600(Top 77%)	123(Top 78%)
9.6M	9.60 mi	1.60 mi	5763+95	1490+44	116+6	5490(Top 77%)	1395(Top 67%)	103(Top 66%)
10M	10.00 mi	0.40 mi	5780-17	1492-2	116	6323(Top 88%)	1726(Top 83%)	129(Top 82%)
10.5M	10.50 mi	0.50 mi	5716+64	1466+26	115+1	4906(Top 68%)	1211(Top 58%)	90(Top 57%)
12M	12.00 mi	1.50 mi	5850-134	1525-59	116-1	6446(Top 90%)	1766(Top 85%)	133(Top 85%)
14M	14.00 mi	2.00 mi	5739+111	1495+30	114+2	5210(Top 73%)	1294(Top 62%)	95(Top 61%)
16M	16.00 mi	2.00 mi	5571+168	1427+68	108+6	4311(Top 60%)	1021(Top 49%)	78(Top 50%)
18M	18.00 mi	2.00 mi	5700-129	1484-57	114-6	6197(Top 86%)	1752(Top 84%)	133(Top 85%)
20M	20.00 mi	2.00 mi	5587+113	1455+29	108+6	4535(Top 63%)	1194(Top 57%)	86(Top 55%)
22M	22.00 mi	2.00 mi	5450+137	1419+36	104+4	4016(Top 56%)	1058(Top 51%)	80(Top 51%)
24M	24.00 mi	2.00 mi	5431+19	1422-3	105-1	5206(Top 73%)	1470(Top 70%)	111(Top 71%)
Finish	26.22 mi	2.22 mi	5472-41	1444-22	111-6	5798(Top 81%)	1668(Top 80%)	133(Top 85%)

12M→14M

12.0 - 14.0 mi

Top 73%

×9stories

+99ft-125ft

Overall

5210

Females

1294

F40-44

14M→16M

14.0 - 16.0 mi

Top 60%

×9stories

+124ft-78ft

Overall

4311

Females

1021

F40-44

16M→18M

16.0 - 18.0 mi

Top 86%

×8stories

+106ft-45ft

Overall

6197

Females

1752

F40-44

133

18M→20M

18.0 - 20.0 mi

Top 63%

×3stories

+52ft-26ft

Overall

4535

Females

1194

F40-44

Category:

Athletes Passed

1331*

Passed By

966

Net Change

+365

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#5837
2M → 4M	91*	231	-140	#5837	#5977
4M → 6M	223	29	+194	#5977	#5783
6M → 8M	49*	124	-75	#5783	#5858
8M → 9.6M	126*	31	+95	#5858	#5763
9.6M → 10M	13	30	-17	#5763	#5780
10M → 10.5M	72	8	+64	#5780	#5716
10.5M → 12M	27	161	-134	#5716	#5850
12M → 14M	130*	19	+111	#5850	#5739
14M → 16M	194*	26	+168	#5739	#5571
16M → 18M	42*	171	-129	#5571	#5700
18M → 20M	121*	8	+113	#5700	#5587
20M → 22M	147*	10	+137	#5587	#5450
22M → 24M	57*	38	+19	#5450	#5431
24M → Finish	39*	80	-41	#5431	#5472
TOTALS	1331*	966	+365

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

📊

Passing Visuals

Category:

📈Position Graph

🎨Heatmap Timeline

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

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Results processed 8 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

Samantha Costello

⏱️ 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

📈Position Graph

🎨Heatmap Timeline

🔄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