Jiafeng Gu

Bib: 12981•M•Age: 28

Emeryville, CA

0:00

0:00

/ mi

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Overall

#0 / 7100

Gender (Male)

#0 / 3977

Division (M25-29)

#0 / 899

Race Day Weather

56°/46°F

light rain

⏱️ Race Timeline

Course Elevation

10–277 ft

≈

×22story building

•▲ 774 ft climb · ▼ 557 ft descent

Ribbon color based on

FasterSteadySlower· vs. your average pace

Start

0:00

Race begins

1.81M

9:16/mi

16:46

→ flat

5.34M

9:20/mi

49:42

↑ 80 ft↓ 74 ft

6.15M

11:29/mi

59:00

↑ 126 ft2.8% grade

10.54M

11:25/mi

1:49:05

↑ 230 ft↓ 361 ft0.6% grade

11.05M

17:11/mi

1:57:51

↑ 172 ft6.4% grade

Finish· 13.11 mi

13:05/mi

2:24:48

↑ 97 ft↓ 114 ft0.2% grade

The Course

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Half Splits

1st Half· via 6.15MFaster

Distance6.15 mi

Time59:00

Pace9:36 /mi

2nd Half

Distance6.96 mi

Time1:25:48

Pace12:20 /mi

📊Positive Split: 45.4% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
1.81M	1.81 mi	06:57:16	16:46	9:16	16:46	9:16	-
5.34M	5.34 mi	07:30:12	49:42	9:18	32:56	9:20	+0:04
6.15M	6.15 mi	07:39:30	59:00	9:36	9:18	11:29	+2:09
10.54M	10.54 mi	08:29:35	1:49:05	10:21	50:05	11:25	-0:04
11.05M	11.05 mi	08:38:21	1:57:51	10:40	8:46	17:11	+5:46
Finish	13.11 mi	09:05:18	2:24:48	11:03	26:57	13:05	-4:06

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

9:16 /mi

Average Pace

11:03 /mi

Slowest Pace

17:11 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:42

34% of race

Time at Steady Pace

59:23

41% of race

Time at Slower Pace

35:43

25% of race

Average Pace: 11:03 /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.

0mi3.3mi6.6mi9.8mi13.1mi

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
1.81M	1.81 mi	06:57:16	16:46	9:16	16:46	9:16	#2418
5.34M	5.34 mi	07:30:12	49:42	9:18	32:56	9:20	#2362
6.15M	6.15 mi	07:39:30	59:00	9:36	9:18	11:29	#2700
10.54M	10.54 mi	08:29:35	1:49:05	10:21	50:05	11:25	#3660
11.05M	11.05 mi	08:38:21	1:57:51	10:40	8:46	17:11	#3814
Finish	13.11 mi	09:05:18	2:24:48	11:03	26:57	13:05	#4278

Faster pace

Steady pace

Slower pace

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M25-29	Seg. Overall	Seg. Males	Seg. M25-29
1.81M	1.81 mi	1.81 mi	2418	1756	426	2418(Top 34%)	1756(Top 44%)	426(Top 47%)
5.34M	5.34 mi	3.53 mi	2362+56	1716+40	426	2363(Top 33%)	1704(Top 43%)	428(Top 48%)
6.15M	6.15 mi	0.81 mi	2700-338	1900-184	464-38	4737(Top 67%)	2976(Top 75%)	733(Top 82%)
10.54M	10.54 mi	4.39 mi	3660-960	2418-518	581-117	4768(Top 67%)	2946(Top 74%)	713(Top 79%)
11.05M	11.05 mi	0.51 mi	3814-154	2501-83	603-22	5294(Top 75%)	3167(Top 80%)	764(Top 85%)
Finish	13.11 mi	2.06 mi	4278-464	2718-217	656-53	5730(Top 81%)	3303(Top 83%)	768(Top 85%)

768

Passing Analysis

Category:

Athletes Passed

259*

Passed By

2119

Net Change

-1860

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 1.81M	-	-	-	-	#2418
1.81M → 5.34M	218*	162	+56	#2418	#2362
5.34M → 6.15M	1	339	-338	#2362	#2700
6.15M → 10.54M	20*	980	-960	#2700	#3660
10.54M → 11.05M	6	160	-154	#3660	#3814
11.05M → Finish	14*	478	-464	#3814	#4278
TOTALS	259*	2119	-1860

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

📊

Passing Visuals

Category:

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

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Results processed about 1 month ago

Official Timing Data

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Race managed by

The San Francisco Marathon

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