Joseph Chang

Bib: 3864•M•Age: 28

Palo Alto, CA

0:00

0:00

/ mi

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Overall

#0 / 7166

Top 25%

Gender (Male)

#0 / 5052

Top 30%

Division (M25-29)

#0 / 1176

Top 33%

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

17:51

Rank: #2061

Start → 2M

17:51 | 8:55/mi

17:51

Rank: #2061

Start → 2M

17:51 | 8:55/mi

36:03

Rank: #2243 (-182)

2M → 4M

18:12 | 9:06/mi

36:03

Rank: #2243 (-182)

2M → 4M

18:12 | 9:06/mi

54:20

Rank: #2311 (-68)

4M → 6M

18:17 | 9:08/mi

54:20

Rank: #2311 (-68)

4M → 6M

18:17 | 9:08/mi

1:11:46

Rank: #2183 (+128)

6M → 8M

17:26 | 8:43/mi

1:11:46

Rank: #2183 (+128)

6M → 8M

17:26 | 8:43/mi

9.6M

1:26:31

Rank: #2127 (+56)

8M → 9.6M

14:45 | 9:13/mi

9.6M

1:26:31

Rank: #2127 (+56)

8M → 9.6M

14:45 | 9:13/mi

10M

1:29:04

Rank: #2135 (-8)

9.6M → 10M

2:33 | 6:23/mi

10M

1:29:04

Rank: #2135 (-8)

9.6M → 10M

2:33 | 6:23/mi

10.5M

1:39:46

Rank: #2936 (-801)

10M → 10.5M

10:42 | 21:23/mi

10.5M

1:39:46

Rank: #2936 (-801)

10M → 10.5M

10:42 | 21:23/mi

12M

1:52:52

Rank: #2853 (+83)

10.5M → 12M

13:06 | 8:44/mi

12M

1:52:52

Rank: #2853 (+83)

10.5M → 12M

13:06 | 8:44/mi

14M

2:12:07

Rank: #2730 (+123)

12M → 14M

19:15 | 9:37/mi

14M

2:12:07

Rank: #2730 (+123)

12M → 14M

19:15 | 9:37/mi

16M

2:26:33

Rank: #2424 (+306)

14M → 16M

14:26 | 7:13/mi

16M

2:26:33

Rank: #2424 (+306)

14M → 16M

14:26 | 7:13/mi

18M

2:46:44

Rank: #2415 (+9)

16M → 18M

20:11 | 10:06/mi

18M

2:46:44

Rank: #2415 (+9)

16M → 18M

20:11 | 10:06/mi

20M

3:03:42

Rank: #2179 (+236)

18M → 20M

16:58 | 8:29/mi

20M

3:03:42

Rank: #2179 (+236)

18M → 20M

16:58 | 8:29/mi

22M

3:18:44

Rank: #1914 (+265)

20M → 22M

15:02 | 7:31/mi

22M

3:18:44

Rank: #1914 (+265)

20M → 22M

15:02 | 7:31/mi

24M

3:38:11

Rank: #1825 (+89)

22M → 24M

19:27 | 9:44/mi

24M

3:38:11

Rank: #1825 (+89)

22M → 24M

19:27 | 9:44/mi

Finish· 26.22 mi

3:59:29

Rank: #1812 (+13)

24M → Finish

21:18 | 9:36/mi

Finish· 26.22 mi

3:59:29

Rank: #1812 (+13)

24M → Finish

21:18 | 9:36/mi

The Course

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Half Splits

1st Half· via 14M

Distance14.00 mi

Time2:12:07

Pace9:26 /mi

2nd Half✓ Faster

Distance12.22 mi

Time1:47:22

Pace8:47 /mi

📊Negative Split: 18.7% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	05:40:28	17:51	8:55	17:51	8:55	-
4M	4.00 mi	05:58:40	36:03	9:01	18:12	9:06	+0:11
6M	6.00 mi	06:16:57	54:20	9:03	18:17	9:08	+0:02
8M	8.00 mi	06:34:23	1:11:46	8:58	17:26	8:43	-0:25
9.6M	9.60 mi	06:49:08	1:26:31	9:01	14:45	9:13	+0:30
10M	10.00 mi	06:51:41	1:29:04	8:54	2:33	6:23	-2:50
10.5M	10.50 mi	07:02:23	1:39:46	9:30	10:42	21:23	+15:00
12M	12.00 mi	07:15:29	1:52:52	9:24	13:06	8:44	-12:39
14M	14.00 mi	07:34:44	2:12:07	9:26	19:15	9:37	+0:53
16M	16.00 mi	07:49:10	2:26:33	9:10	14:26	7:13	-2:24
18M	18.00 mi	08:09:21	2:46:44	9:16	20:11	10:06	+2:53
20M	20.00 mi	08:26:19	3:03:42	9:11	16:58	8:29	-1:37
22M	22.00 mi	08:41:21	3:18:44	9:02	15:02	7:31	-0:58
24M	24.00 mi	09:00:48	3:38:11	9:05	19:27	9:44	+2:13
Finish	26.22 mi	09:22:06	3:59:29	9:08	21:18	9:36	-0:08

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

6:23 /mi

Average Pace

9:08 /mi

Slowest Pace

21:23 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:59

7% of race

Time at Steady Pace

3:31:48

88% of race

Time at Slower Pace

10:42

4% of race

Average Pace: 9:08 /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	05:40:28	17:51	8:55	17:51	8:55	#2061
4M	4.00 mi	05:58:40	36:03	9:01	18:12	9:06	#2243
6M	6.00 mi	06:16:57	54:20	9:03	18:17	9:08	#2311
8M	8.00 mi	06:34:23	1:11:46	8:58	17:26	8:43	#2183
9.6M	9.60 mi	06:49:08	1:26:31	9:01	14:45	9:13	#2127
10M	10.00 mi	06:51:41	1:29:04	8:54	2:33	6:23	#2135
10.5M	10.50 mi	07:02:23	1:39:46	9:30	10:42	21:23	#2936
12M	12.00 mi	07:15:29	1:52:52	9:24	13:06	8:44	#2853
14M	14.00 mi	07:34:44	2:12:07	9:26	19:15	9:37	#2730
16M	16.00 mi	07:49:10	2:26:33	9:10	14:26	7:13	#2424
18M	18.00 mi	08:09:21	2:46:44	9:16	20:11	10:06	#2415
20M	20.00 mi	08:26:19	3:03:42	9:11	16:58	8:29	#2179
22M	22.00 mi	08:41:21	3:18:44	9:02	15:02	7:31	#1914
24M	24.00 mi	09:00:48	3:38:11	9:05	19:27	9:44	#1825
Finish	26.22 mi	09:22:06	3:59:29	9:08	21:18	9:36	#1812

Faster pace

Steady pace

Slower pace

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 94%

Garmin Challenge

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

13:15

Segment Time

14:44/mi

Pace

0.90 mi

Distance

Overall

6715

Men

4787

Division

1130

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M25-29	Seg. Overall	Seg. Males	Seg. M25-29
2M	2.00 mi	2.00 mi	2061	1753	424	2438(Top 34%)	2030(Top 40%)	517(Top 44%)
4M	4.00 mi	2.00 mi	2243-182	1887-134	448-24	2424(Top 34%)	2025(Top 40%)	492(Top 42%)
6M	6.00 mi	2.00 mi	2311-68	1946-59	464-16	2511(Top 35%)	2093(Top 41%)	511(Top 43%)
8M	8.00 mi	2.00 mi	2183+128	1849+97	441+23	1951(Top 27%)	1657(Top 33%)	405(Top 34%)
9.6M	9.60 mi	1.60 mi	2127+56	1809+40	436+5	1987(Top 28%)	1698(Top 34%)	433(Top 37%)
10M	10.00 mi	0.40 mi	2135-8	1814-5	437-1	2569(Top 36%)	2136(Top 42%)	526(Top 45%)
10.5M	10.50 mi	0.50 mi	2936-801	2415-601	592-155	6974(Top 97%)	4952(Top 98%)	1144(Top 97%)
12M	12.00 mi	1.50 mi	2853+83	2358+57	584+8	2438(Top 34%)	2030(Top 40%)	517(Top 44%)
14M	14.00 mi	2.00 mi	2730+123	2258+100	567+17	2154(Top 30%)	1818(Top 36%)	445(Top 38%)
16M	16.00 mi	2.00 mi	2424+306	2017+241	506+61	1227(Top 17%)	1042(Top 21%)	268(Top 23%)
18M	18.00 mi	2.00 mi	2415+9	2006+11	494+12	2377(Top 33%)	1919(Top 38%)	485(Top 41%)
20M	20.00 mi	2.00 mi	2179+236	1818+188	455+39	864(Top 12%)	753(Top 15%)	207(Top 18%)
22M	22.00 mi	2.00 mi	1914+265	1601+217	398+57	508(Top 7%)	442(Top 9%)	130(Top 11%)
24M	24.00 mi	2.00 mi	1825+89	1516+85	385+13	1463(Top 20%)	1174(Top 23%)	297(Top 25%)
Finish	26.22 mi	2.22 mi	1812+13	1500+16	385	1798(Top 25%)	1415(Top 28%)	368(Top 31%)

368

Passing Analysis

Category:

Athletes Passed

1645*

Passed By

1396

Net Change

+249

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#2061
2M → 4M	48	230	-182	#2061	#2243
4M → 6M	59	127	-68	#2243	#2311
6M → 8M	144*	16	+128	#2311	#2183
8M → 9.6M	84*	28	+56	#2183	#2127
9.6M → 10M	10	18	-8	#2127	#2135
10M → 10.5M	0	801	-801	#2135	#2936
10.5M → 12M	99	16	+83	#2936	#2853
12M → 14M	133*	10	+123	#2853	#2730
14M → 16M	307*	1	+306	#2730	#2424
16M → 18M	101	92	+9	#2424	#2415
18M → 20M	236*	0	+236	#2415	#2179
20M → 22M	265*	0	+265	#2179	#1914
22M → 24M	105*	16	+89	#1914	#1825
24M → Finish	54*	41	+13	#1825	#1812
TOTALS	1645*	1396	+249

* 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 9 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

Joseph 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

📈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