Yuen-Shung Chieh

Bib: 1559•M•Age: 56

Sunnyvale, CA

Masters

0:00

0:00

/ mi

Masters

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Overall

#0 / 4888

Gender (Male)

#0 / 3570

Masters (Masters Men)

#0 / 1128

Top 50%

Division (M55-59)

#0 / 134

Top 45%

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

16:41

Rank: #1364

Start → 2.2 Miles

16:41 | 7:35/mi

2.2 Miles

16:41

Rank: #1364

Start → 2.2 Miles

16:41 | 7:35/mi

5.7 Miles

50:54

Rank: #1819 (-455)

2.2 Miles → 5.7 Miles

34:13 | 9:47/mi

5.7 Miles

50:54

Rank: #1819 (-455)

2.2 Miles → 5.7 Miles

34:13 | 9:47/mi

6.43 Miles

1:00:26

Rank: #1885 (-66)

5.7 Miles → 6.43 Miles

9:32 | 13:03/mi

6.43 Miles

1:00:26

Rank: #1885 (-66)

5.7 Miles → 6.43 Miles

9:32 | 13:03/mi

10.92 Miles

1:39:24

Rank: #1844 (+41)

6.43 Miles → 10.92 Miles

38:58 | 8:41/mi

10.92 Miles

1:39:24

Rank: #1844 (+41)

6.43 Miles → 10.92 Miles

38:58 | 8:41/mi

Garmin Hill Challenge· 11.42 mi

1:45:17

Rank: #1856 (-12)

10.92 Miles → Garmin Hill Challenge

5:53 | 11:46/mi

Garmin Hill Challenge· 11.42 mi

1:45:17

Rank: #1856 (-12)

10.92 Miles → Garmin Hill Challenge

5:53 | 11:46/mi

14.95 Miles

2:15:35

Rank: #1868 (-12)

Garmin Hill Challenge → 14.95 Miles

30:18 | 8:35/mi

14.95 Miles

2:15:35

Rank: #1868 (-12)

Garmin Hill Challenge → 14.95 Miles

30:18 | 8:35/mi

18 Miles

2:50:40

Rank: #2000 (-132)

14.95 Miles → 18 Miles

35:05 | 11:30/mi

18 Miles

2:50:40

Rank: #2000 (-132)

14.95 Miles → 18 Miles

35:05 | 11:30/mi

24 Miles

4:03:47

Rank: #2443 (-443)

18 Miles → 24 Miles

1:13:07 | 12:11/mi

24 Miles

4:03:47

Rank: #2443 (-443)

18 Miles → 24 Miles

1:13:07 | 12:11/mi

Finish· 26.22 mi

4:30:52

Rank: #2576 (-133)

24 Miles → Finish

27:05 | 12:12/mi

Finish· 26.22 mi

4:30:52

Rank: #2576 (-133)

24 Miles → Finish

27:05 | 12:12/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	05:39:07	16:41	7:35	16:41	7:35	-
5.7 Miles	5.70 mi	06:13:20	50:54	8:56	34:13	9:47	+2:12
6.43 Miles	6.43 mi	06:22:52	1:00:26	9:24	9:32	13:03	+3:16
10.92 Miles	10.92 mi	07:01:50	1:39:24	9:06	38:58	8:41	-4:22
Garmin Hill Challenge	11.42 mi	07:07:43	1:45:17	9:13	5:53	11:46	+3:05
14.95 Miles	14.95 mi	07:38:01	2:15:35	9:04	30:18	8:35	-3:11
18 Miles	18.00 mi	08:13:06	2:50:40	9:29	35:05	11:30	+2:55
24 Miles	24.00 mi	09:26:13	4:03:47	10:09	1:13:07	12:11	+0:41
Finish	26.22 mi	09:53:18	4:30:52	10:20	27:05	12:12	+0:01

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

7:35 /mi

Average Pace

10:20 /mi

Slowest Pace

13:03 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:10

44% of race

Time at Steady Pace

2:21:10

52% of race

Time at Slower Pace

9:32

4% of race

Average Pace: 10:20 /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	05:39:07	16:41	7:35	16:41	7:35	#1364
5.7 Miles	5.70 mi	06:13:20	50:54	8:56	34:13	9:47	#1819
6.43 Miles	6.43 mi	06:22:52	1:00:26	9:24	9:32	13:03	#1885
10.92 Miles	10.92 mi	07:01:50	1:39:24	9:06	38:58	8:41	#1844
Garmin Hill Challenge	11.42 mi	07:07:43	1:45:17	9:13	5:53	11:46	#1856
14.95 Miles	14.95 mi	07:38:01	2:15:35	9:04	30:18	8:35	#1868
18 Miles	18.00 mi	08:13:06	2:50:40	9:29	35:05	11:30	#2000
24 Miles	24.00 mi	09:26:13	4:03:47	10:09	1:13:07	12:11	#2443
Finish	26.22 mi	09:53:18	4:30:52	10:20	27:05	12:12	#2576

Faster pace

Steady pace

Slower pace

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M55-59	Seg. Overall	Seg. Males	Seg. M55-59
2.2 Miles	2.20 mi	2.20 mi	1364	1186	29	1364(Top 28%)	1186(Top 33%)	29(Top 22%)
5.7 Miles	5.70 mi	3.50 mi	1819-455	1539-353	44-15	2060(Top 42%)	1734(Top 49%)	49(Top 37%)
6.43 Miles	6.43 mi	0.73 mi	1885-66	1600-61	45-1	2207(Top 45%)	1852(Top 52%)	46(Top 34%)
10.92 Miles	10.92 mi	4.49 mi	1844+41	1572+28	37+8	1824(Top 37%)	1560(Top 44%)	36(Top 27%)
Garmin Hill Challenge	11.42 mi	0.50 mi	1856-12	1586-14	36+1	2183(Top 45%)	1826(Top 51%)	40(Top 30%)
14.95 Miles	14.95 mi	3.53 mi	1868-12	1590-4	35+1	2075(Top 42%)	1737(Top 49%)	42(Top 31%)
18 Miles	18.00 mi	3.05 mi	2000-132	1690-100	39-4	2593(Top 53%)	2080(Top 58%)	61(Top 46%)
24 Miles	24.00 mi	6.00 mi	2443-443	1974-284	54-15	3393(Top 69%)	2554(Top 72%)	83(Top 62%)
Finish	26.22 mi	2.22 mi	2576-133	2058-84	60-6	3530(Top 72%)	2620(Top 73%)	89(Top 66%)

M55-59

Passing Analysis

Category:

Athletes Passed

276*

Passed By

1488

Net Change

-1212

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2.2 Miles	-	-	-	-	#1364
2.2 Miles → 5.7 Miles	20*	475	-455	#1364	#1819
5.7 Miles → 6.43 Miles	12	78	-66	#1819	#1885
6.43 Miles → 10.92 Miles	96*	55	+41	#1885	#1844
10.92 Miles → Garmin Hill Challenge	19	31	-12	#1844	#1856
Garmin Hill Challenge → 14.95 Miles	48	60	-12	#1856	#1868
14.95 Miles → 18 Miles	32*	164	-132	#1868	#2000
18 Miles → 24 Miles	34*	477	-443	#2000	#2443
24 Miles → Finish	15*	148	-133	#2443	#2576
TOTALS	276*	1488	-1212

* 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 19 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

Yuen-Shung Chieh

⏱️ 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

🔥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