David Chong

Bib: 7740•M•Age: 23

Belmont, CA

0:00

0:00

/ mi

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Overall

#0 / 4888

Gender (Male)

#0 / 3570

M20-29

#0 / 457

Race Day Weather

69°/59°F

broken clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

2.2 Miles

19:39

Rank: #3415

Start → 2.2 Miles

19:39 | 8:56/mi

2.2 Miles

19:39

Rank: #3415

Start → 2.2 Miles

19:39 | 8:56/mi

5.7 Miles

58:06

Rank: #3342 (+73)

2.2 Miles → 5.7 Miles

38:27 | 10:59/mi

5.7 Miles

58:06

Rank: #3342 (+73)

2.2 Miles → 5.7 Miles

38:27 | 10:59/mi

6.43 Miles

1:08:44

Rank: #3330 (+12)

5.7 Miles → 6.43 Miles

10:38 | 14:34/mi

6.43 Miles

1:08:44

Rank: #3330 (+12)

5.7 Miles → 6.43 Miles

10:38 | 14:34/mi

10.92 Miles

1:52:27

Rank: #3178 (+152)

6.43 Miles → 10.92 Miles

43:43 | 9:44/mi

10.92 Miles

1:52:27

Rank: #3178 (+152)

6.43 Miles → 10.92 Miles

43:43 | 9:44/mi

Garmin Hill Challenge· 11.42 mi

1:59:09

Rank: #3162 (+16)

10.92 Miles → Garmin Hill Challenge

6:42 | 13:24/mi

Garmin Hill Challenge· 11.42 mi

1:59:09

Rank: #3162 (+16)

10.92 Miles → Garmin Hill Challenge

6:42 | 13:24/mi

14.95 Miles

2:31:20

Rank: #3053 (+109)

Garmin Hill Challenge → 14.95 Miles

32:11 | 9:07/mi

14.95 Miles

2:31:20

Rank: #3053 (+109)

Garmin Hill Challenge → 14.95 Miles

32:11 | 9:07/mi

18 Miles

3:11:51

Rank: #3196 (-143)

14.95 Miles → 18 Miles

40:31 | 13:17/mi

18 Miles

3:11:51

Rank: #3196 (-143)

14.95 Miles → 18 Miles

40:31 | 13:17/mi

24 Miles

4:26:40

Rank: #3314 (-118)

18 Miles → 24 Miles

1:14:49 | 12:28/mi

24 Miles

4:26:40

Rank: #3314 (-118)

18 Miles → 24 Miles

1:14:49 | 12:28/mi

Finish· 26.22 mi

4:52:13

Rank: #3285 (+29)

24 Miles → Finish

25:33 | 11:31/mi

Finish· 26.22 mi

4:52:13

Rank: #3285 (+29)

24 Miles → Finish

25:33 | 11:31/mi

The Course

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Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2.2 Miles	2.20 mi	05:50:10	19:39	8:56	19:39	8:56	-
5.7 Miles	5.70 mi	06:28:37	58:06	10:12	38:27	10:59	+2:03
6.43 Miles	6.43 mi	06:39:15	1:08:44	10:41	10:38	14:34	+3:35
10.92 Miles	10.92 mi	07:22:58	1:52:27	10:18	43:43	9:44	-4:50
Garmin Hill Challenge	11.42 mi	07:29:40	1:59:09	10:26	6:42	13:24	+3:40
14.95 Miles	14.95 mi	08:01:51	2:31:20	10:07	32:11	9:07	-4:17
18 Miles	18.00 mi	08:42:22	3:11:51	10:40	40:31	13:17	+4:10
24 Miles	24.00 mi	09:57:11	4:26:40	11:07	1:14:49	12:28	-0:49
Finish	26.22 mi	10:22:44	4:52:13	11:09	25:33	11:31	-0:57

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

8:56 /mi

Average Pace

11:09 /mi

Slowest Pace

14:34 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:33

33% of race

Time at Steady Pace

2:18:49

48% of race

Time at Slower Pace

57:51

20% of race

Average Pace: 11:09 /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
2.2 Miles	2.20 mi	05:50:10	19:39	8:56	19:39	8:56	#3415
5.7 Miles	5.70 mi	06:28:37	58:06	10:12	38:27	10:59	#3342
6.43 Miles	6.43 mi	06:39:15	1:08:44	10:41	10:38	14:34	#3330
10.92 Miles	10.92 mi	07:22:58	1:52:27	10:18	43:43	9:44	#3178
Garmin Hill Challenge	11.42 mi	07:29:40	1:59:09	10:26	6:42	13:24	#3162
14.95 Miles	14.95 mi	08:01:51	2:31:20	10:07	32:11	9:07	#3053
18 Miles	18.00 mi	08:42:22	3:11:51	10:40	40:31	13:17	#3196
24 Miles	24.00 mi	09:57:11	4:26:40	11:07	1:14:49	12:28	#3314
Finish	26.22 mi	10:22:44	4:52:13	11:09	25:33	11:31	#3285

Faster pace

Steady pace

Slower pace

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M20-29	Seg. Overall	Seg. Males	Seg. M20-29
2.2 Miles	2.20 mi	2.20 mi	3415	2683	360	3415(Top 70%)	2683(Top 75%)	360(Top 79%)
5.7 Miles	5.70 mi	3.50 mi	3342+73	2634+49	356+4	3326(Top 68%)	2627(Top 74%)	359(Top 79%)
6.43 Miles	6.43 mi	0.73 mi	3330+12	2624+10	357-1	3373(Top 69%)	2658(Top 74%)	374(Top 82%)
10.92 Miles	10.92 mi	4.49 mi	3178+152	2529+95	351+6	3012(Top 62%)	2421(Top 68%)	341(Top 75%)
Garmin Hill Challenge	11.42 mi	0.50 mi	3162+16	2525+4	353-2	3157(Top 65%)	2521(Top 71%)	371(Top 81%)
14.95 Miles	14.95 mi	3.53 mi	3053+109	2448+77	347+6	2670(Top 55%)	2156(Top 60%)	323(Top 71%)
18 Miles	18.00 mi	3.05 mi	3196-143	2525-77	362-15	3639(Top 74%)	2771(Top 78%)	391(Top 86%)
24 Miles	24.00 mi	6.00 mi	3314-118	2573-48	366-4	3551(Top 73%)	2656(Top 74%)	368(Top 81%)
Finish	26.22 mi	2.22 mi	3285+29	2543+30	362+4	3138(Top 64%)	2359(Top 66%)	339(Top 74%)

339

Passing Analysis

Category:

Athletes Passed

758*

Passed By

628

Net Change

+130

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2.2 Miles	-	-	-	-	#3415
2.2 Miles → 5.7 Miles	195*	122	+73	#3415	#3342
5.7 Miles → 6.43 Miles	55	43	+12	#3342	#3330
6.43 Miles → 10.92 Miles	186*	34	+152	#3330	#3178
10.92 Miles → Garmin Hill Challenge	48	32	+16	#3178	#3162
Garmin Hill Challenge → 14.95 Miles	116	7	+109	#3162	#3053
14.95 Miles → 18 Miles	42*	185	-143	#3053	#3196
18 Miles → 24 Miles	57*	175	-118	#3196	#3314
24 Miles → Finish	59*	30	+29	#3314	#3285
TOTALS	758*	628	+130

* 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

David Chong

⏱️ Race Timeline

The Course

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

Checkpoint Splits

Checkpoints & Pacing

📈Pace Line

Pace Progression

📊Segments

Segment Time Comparison

🎨Heatmap

Pace Heatmap

✨Sparklines

Checkpoint Splits with Pace Trends

Checkpoint and Segment Rankings

Segment Performance Analysis

Start → 2.2 Miles

2.2 Miles→5.7 Miles

5.7 Miles→6.43 Miles

6.43 Miles→10.92 Miles

10.92 Miles→Garmin Hill Challenge

Garmin Hill Challenge→14.95 Miles

14.95 Miles→18 Miles

18 Miles→24 Miles

24 Miles→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