Serena Chang

Bib: 10214•F•Age: 31

Oakland, CA

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 7166

Gender (Female)

#0 / 2086

Division (F30-34)

#0 / 395

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

23:41

Rank: #6710

Start → 2M

23:41 | 11:50/mi

23:41

Rank: #6710

Start → 2M

23:41 | 11:50/mi

47:10

Rank: #6532 (+178)

2M → 4M

23:29 | 11:45/mi

47:10

Rank: #6532 (+178)

2M → 4M

23:29 | 11:45/mi

1:11:20

Rank: #6458 (+74)

4M → 6M

24:10 | 12:05/mi

1:11:20

Rank: #6458 (+74)

4M → 6M

24:10 | 12:05/mi

1:35:39

Rank: #6571 (-113)

6M → 8M

24:19 | 12:09/mi

1:35:39

Rank: #6571 (-113)

6M → 8M

24:19 | 12:09/mi

9.6M

1:55:58

Rank: #6483 (+88)

8M → 9.6M

20:19 | 12:42/mi

9.6M

1:55:58

Rank: #6483 (+88)

8M → 9.6M

20:19 | 12:42/mi

10M

1:59:15

Rank: #6471 (+12)

9.6M → 10M

3:17 | 8:13/mi

10M

1:59:15

Rank: #6471 (+12)

9.6M → 10M

3:17 | 8:13/mi

10.5M

2:07:33

Rank: #6426 (+45)

10M → 10.5M

8:18 | 16:36/mi

10.5M

2:07:33

Rank: #6426 (+45)

10M → 10.5M

8:18 | 16:36/mi

12M

2:26:41

Rank: #6455 (-29)

10.5M → 12M

19:08 | 12:45/mi

12M

2:26:41

Rank: #6455 (-29)

10.5M → 12M

19:08 | 12:45/mi

14M

2:53:38

Rank: #6411 (+44)

12M → 14M

26:57 | 13:28/mi

14M

2:53:38

Rank: #6411 (+44)

12M → 14M

26:57 | 13:28/mi

16M

3:19:05

Rank: #6486 (-75)

14M → 16M

25:27 | 12:44/mi

16M

3:19:05

Rank: #6486 (-75)

14M → 16M

25:27 | 12:44/mi

18M

3:44:32

Rank: #6364 (+122)

16M → 18M

25:27 | 12:44/mi

18M

3:44:32

Rank: #6364 (+122)

16M → 18M

25:27 | 12:44/mi

20M

4:11:38

Rank: #6327 (+37)

18M → 20M

27:06 | 13:33/mi

20M

4:11:38

Rank: #6327 (+37)

18M → 20M

27:06 | 13:33/mi

22M

4:40:39

Rank: #6397 (-70)

20M → 22M

29:01 | 14:30/mi

22M

4:40:39

Rank: #6397 (-70)

20M → 22M

29:01 | 14:30/mi

24M

5:10:50

Rank: #6390 (+7)

22M → 24M

30:11 | 15:06/mi

24M

5:10:50

Rank: #6390 (+7)

22M → 24M

30:11 | 15:06/mi

Finish· 26.22 mi

5:43:55

Rank: #6410 (-20)

24M → Finish

33:05 | 14:55/mi

Finish· 26.22 mi

5:43:55

Rank: #6410 (-20)

24M → Finish

33:05 | 14:55/mi

The Course

Is this your race?

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

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via 14M

Distance14.00 mi

Time2:53:38

Pace12:24 /mi

2nd Half✓ Faster

Distance12.22 mi

Time2:50:17

Pace13:56 /mi

📊Negative Split: 1.9% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	06:00:30	23:41	11:50	23:41	11:50	-
4M	4.00 mi	06:23:59	47:10	11:48	23:29	11:45	-0:05
6M	6.00 mi	06:48:09	1:11:20	11:53	24:10	12:05	+0:20
8M	8.00 mi	07:12:28	1:35:39	11:57	24:19	12:09	+0:04
9.6M	9.60 mi	07:32:47	1:55:58	12:05	20:19	12:42	+0:33
10M	10.00 mi	07:36:04	1:59:15	11:56	3:17	8:13	-4:29
10.5M	10.50 mi	07:44:22	2:07:33	12:09	8:18	16:36	+8:23
12M	12.00 mi	08:03:30	2:26:41	12:13	19:08	12:45	-3:51
14M	14.00 mi	08:30:27	2:53:38	12:24	26:57	13:28	+0:43
16M	16.00 mi	08:55:54	3:19:05	12:27	25:27	12:44	-0:44
18M	18.00 mi	09:21:21	3:44:32	12:28	25:27	12:44	0:00
20M	20.00 mi	09:48:27	4:11:38	12:35	27:06	13:33	+0:49
22M	22.00 mi	10:17:28	4:40:39	12:45	29:01	14:30	+0:57
24M	24.00 mi	10:47:39	5:10:50	12:57	30:11	15:06	+0:36
Finish	26.22 mi	11:20:44	5:43:55	13:08	33:05	14:55	-0:11

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

8:13 /mi

Average Pace

13:08 /mi

Slowest Pace

16:36 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

26:46

8% of race

Time at Steady Pace

3:36:34

63% of race

Time at Slower Pace

1:40:35

29% of race

Average Pace: 13:07 /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	06:00:30	23:41	11:50	23:41	11:50	#6710
4M	4.00 mi	06:23:59	47:10	11:48	23:29	11:45	#6532
6M	6.00 mi	06:48:09	1:11:20	11:53	24:10	12:05	#6458
8M	8.00 mi	07:12:28	1:35:39	11:57	24:19	12:09	#6571
9.6M	9.60 mi	07:32:47	1:55:58	12:05	20:19	12:42	#6483
10M	10.00 mi	07:36:04	1:59:15	11:56	3:17	8:13	#6471
10.5M	10.50 mi	07:44:22	2:07:33	12:09	8:18	16:36	#6426
12M	12.00 mi	08:03:30	2:26:41	12:13	19:08	12:45	#6455
14M	14.00 mi	08:30:27	2:53:38	12:24	26:57	13:28	#6411
16M	16.00 mi	08:55:54	3:19:05	12:27	25:27	12:44	#6486
18M	18.00 mi	09:21:21	3:44:32	12:28	25:27	12:44	#6364
20M	20.00 mi	09:48:27	4:11:38	12:35	27:06	13:33	#6327
22M	22.00 mi	10:17:28	4:40:39	12:45	29:01	14:30	#6397
24M	24.00 mi	10:47:39	5:10:50	12:57	30:11	15:06	#6390
Finish	26.22 mi	11:20:44	5:43:55	13:08	33:05	14:55	#6410

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 84%

Garmin Challenge

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

11:35

Segment Time

12:52/mi

Pace

0.90 mi

Distance

Overall

6007

Women

1630

Division

307

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Females	F30-34	Seg. Overall	Seg. Females	Seg. F30-34
2M	2.00 mi	2.00 mi	6710	1876	349	6492(Top 91%)	1788(Top 86%)	341(Top 86%)
4M	4.00 mi	2.00 mi	6532+178	1795+81	335+14	6380(Top 89%)	1753(Top 84%)	326(Top 83%)
6M	6.00 mi	2.00 mi	6458+74	1770+25	327+8	6399(Top 89%)	1745(Top 84%)	317(Top 80%)
8M	8.00 mi	2.00 mi	6571-113	1800-30	334-7	6778(Top 95%)	1899(Top 91%)	357(Top 90%)
9.6M	9.60 mi	1.60 mi	6483+88	1779+21	332+2	6130(Top 86%)	1659(Top 80%)	316(Top 80%)
10M	10.00 mi	0.40 mi	6471+12	1775+4	333-1	6066(Top 85%)	1620(Top 78%)	302(Top 76%)
10.5M	10.50 mi	0.50 mi	6426+45	1756+19	328+5	6125(Top 85%)	1678(Top 80%)	314(Top 79%)
12M	12.00 mi	1.50 mi	6455-29	1761-5	332-4	6492(Top 91%)	1788(Top 86%)	341(Top 86%)
14M	14.00 mi	2.00 mi	6411+44	1751+10	327+5	6243(Top 87%)	1708(Top 82%)	324(Top 82%)
16M	16.00 mi	2.00 mi	6486-75	1787-36	339-12	6490(Top 91%)	1836(Top 88%)	356(Top 90%)
18M	18.00 mi	2.00 mi	6364+122	1742+45	329+10	5054(Top 71%)	1338(Top 64%)	249(Top 63%)
20M	20.00 mi	2.00 mi	6327+37	1742	333-4	6093(Top 85%)	1739(Top 83%)	332(Top 84%)
22M	22.00 mi	2.00 mi	6397-70	1774-32	338-5	6696(Top 93%)	1946(Top 93%)	368(Top 93%)
24M	24.00 mi	2.00 mi	6390+7	1786-12	344-6	6292(Top 88%)	1815(Top 87%)	351(Top 89%)
Finish	26.22 mi	2.22 mi	6410-20	1797-11	347-3	6448(Top 90%)	1868(Top 90%)	359(Top 91%)

359

Passing Analysis

Category:

Athletes Passed

999*

Passed By

699

Net Change

+300

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#6710
2M → 4M	214*	36	+178	#6710	#6532
4M → 6M	136*	62	+74	#6532	#6458
6M → 8M	25*	138	-113	#6458	#6571
8M → 9.6M	107*	19	+88	#6571	#6483
9.6M → 10M	18	6	+12	#6483	#6471
10M → 10.5M	56	11	+45	#6471	#6426
10.5M → 12M	35	64	-29	#6426	#6455
12M → 14M	68*	24	+44	#6455	#6411
14M → 16M	48*	123	-75	#6411	#6486
16M → 18M	129*	7	+122	#6486	#6364
18M → 20M	64*	27	+37	#6364	#6327
20M → 22M	18*	88	-70	#6327	#6397
22M → 24M	45*	38	+7	#6397	#6390
24M → Finish	36*	56	-20	#6390	#6410
TOTALS	999*	699	+300

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

📊

Passing Visuals

Category:

🔥Passing Intensity

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Share Feedback

Quick Links

Explore more race data and athlete comparisons

All Results

Browse complete race results with filtering

→

Race Analytics

View race statistics, trends, and insights

→

Course Information

View interactive course map and elevation

→

Contact Time Management

Questions about your timing data or results

→

Results processed 10 days ago

Public Race Data

Enhanced athlete results built from publicly available data.

Race managed by

The San Francisco Marathon

Race timed by

Race Place Events

Serena Chang

⏱️ 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