Zibo Song

Bib: 3786•M•Age: 32

SUNNYVALE, CA

0:00

0:00

/ mi

Be the first to cheer!

Overall

#0 / 7166

Top 24%

Gender (Male)

#0 / 5052

Top 28%

Division (M30-34)

#0 / 1040

Top 29%

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start

0:00:00

Race begins

Start

0:00:00

Race begins

18:14

Rank: #2567

Start → 2M

18:14 | 9:07/mi

18:14

Rank: #2567

Start → 2M

18:14 | 9:07/mi

36:09

Rank: #2320 (+247)

2M → 4M

17:55 | 8:58/mi

36:09

Rank: #2320 (+247)

2M → 4M

17:55 | 8:58/mi

54:07

Rank: #2223 (+97)

4M → 6M

17:58 | 8:59/mi

54:07

Rank: #2223 (+97)

4M → 6M

17:58 | 8:59/mi

1:11:08

Rank: #2023 (+200)

6M → 8M

17:01 | 8:30/mi

1:11:08

Rank: #2023 (+200)

6M → 8M

17:01 | 8:30/mi

9.6M

1:25:21

Rank: #1902 (+121)

8M → 9.6M

14:13 | 8:53/mi

9.6M

1:25:21

Rank: #1902 (+121)

8M → 9.6M

14:13 | 8:53/mi

10M

1:27:45

Rank: #1888 (+14)

9.6M → 10M

2:24 | 6:00/mi

10M

1:27:45

Rank: #1888 (+14)

9.6M → 10M

2:24 | 6:00/mi

10.5M

1:33:37

Rank: #1884 (+4)

10M → 10.5M

5:52 | 11:44/mi

10.5M

1:33:37

Rank: #1884 (+4)

10M → 10.5M

5:52 | 11:44/mi

12M

1:45:58

Rank: #1830 (+54)

10.5M → 12M

12:21 | 8:14/mi

12M

1:45:58

Rank: #1830 (+54)

10.5M → 12M

12:21 | 8:14/mi

14M

2:04:33

Rank: #1774 (+56)

12M → 14M

18:35 | 9:17/mi

14M

2:04:33

Rank: #1774 (+56)

12M → 14M

18:35 | 9:17/mi

16M

2:18:45

Rank: #1590 (+184)

14M → 16M

14:12 | 7:06/mi

16M

2:18:45

Rank: #1590 (+184)

14M → 16M

14:12 | 7:06/mi

18M

2:39:21

Rank: #1708 (-118)

16M → 18M

20:36 | 10:18/mi

18M

2:39:21

Rank: #1708 (-118)

16M → 18M

20:36 | 10:18/mi

20M

2:58:13

Rank: #1693 (+15)

18M → 20M

18:52 | 9:26/mi

20M

2:58:13

Rank: #1693 (+15)

18M → 20M

18:52 | 9:26/mi

22M

3:16:43

Rank: #1754 (-61)

20M → 22M

18:30 | 9:15/mi

22M

3:16:43

Rank: #1754 (-61)

20M → 22M

18:30 | 9:15/mi

24M

3:36:09

Rank: #1671 (+83)

22M → 24M

19:26 | 9:43/mi

24M

3:36:09

Rank: #1671 (+83)

22M → 24M

19:26 | 9:43/mi

Finish· 26.22 mi

3:58:07

Rank: #1710 (-39)

24M → Finish

21:58 | 9:54/mi

Finish· 26.22 mi

3:58:07

Rank: #1710 (-39)

24M → Finish

21:58 | 9:54/mi

Is this your race?

Claim it — get your free Race Performance Report

An AI deep-dive into your pacing, rankings, and passing — built from your real splits and emailed to you, free.

Half Splits

1st Half· via 14M

Distance14.00 mi

Time2:04:33

Pace8:54 /mi

2nd Half✓ Faster

Distance12.22 mi

Time1:53:34

Pace9:18 /mi

📊Negative Split: 8.8% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	05:46:15	18:14	9:07	18:14	9:07	-
4M	4.00 mi	06:04:10	36:09	9:02	17:55	8:58	-0:09
6M	6.00 mi	06:22:08	54:07	9:01	17:58	8:59	+0:01
8M	8.00 mi	06:39:09	1:11:08	8:53	17:01	8:30	-0:29
9.6M	9.60 mi	06:53:22	1:25:21	8:53	14:13	8:53	+0:23
10M	10.00 mi	06:55:46	1:27:45	8:47	2:24	6:00	-2:53
10.5M	10.50 mi	07:01:38	1:33:37	8:55	5:52	11:44	+5:44
12M	12.00 mi	07:13:59	1:45:58	8:50	12:21	8:14	-3:30
14M	14.00 mi	07:32:34	2:04:33	8:54	18:35	9:17	+1:03
16M	16.00 mi	07:46:46	2:18:45	8:40	14:12	7:06	-2:11
18M	18.00 mi	08:07:22	2:39:21	8:51	20:36	10:18	+3:12
20M	20.00 mi	08:26:14	2:58:13	8:55	18:52	9:26	-0:52
22M	22.00 mi	08:44:44	3:16:43	8:56	18:30	9:15	-0:11
24M	24.00 mi	09:04:10	3:36:09	9:00	19:26	9:43	+0:28
Finish	26.22 mi	09:26:08	3:58:07	9:05	21:58	9:54	+0:11

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

6:00 /mi

Average Pace

9:05 /mi

Slowest Pace

11:44 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

28:57

12% of race

Time at Steady Pace

2:40:44

68% of race

Time at Slower Pace

48:26

20% of race

Average Pace: 9:05 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
2M	2.00 mi	05:46:15	18:14	9:07	18:14	9:07	#2567
4M	4.00 mi	06:04:10	36:09	9:02	17:55	8:58	#2320
6M	6.00 mi	06:22:08	54:07	9:01	17:58	8:59	#2223
8M	8.00 mi	06:39:09	1:11:08	8:53	17:01	8:30	#2023
9.6M	9.60 mi	06:53:22	1:25:21	8:53	14:13	8:53	#1902
10M	10.00 mi	06:55:46	1:27:45	8:47	2:24	6:00	#1888
10.5M	10.50 mi	07:01:38	1:33:37	8:55	5:52	11:44	#1884
12M	12.00 mi	07:13:59	1:45:58	8:50	12:21	8:14	#1830
14M	14.00 mi	07:32:34	2:04:33	8:54	18:35	9:17	#1774
16M	16.00 mi	07:46:46	2:18:45	8:40	14:12	7:06	#1590
18M	18.00 mi	08:07:22	2:39:21	8:51	20:36	10:18	#1708
20M	20.00 mi	08:26:14	2:58:13	8:55	18:52	9:26	#1693
22M	22.00 mi	08:44:44	3:16:43	8:56	18:30	9:15	#1754
24M	24.00 mi	09:04:10	3:36:09	9:00	19:26	9:43	#1671
Finish	26.22 mi	09:26:08	3:58:07	9:05	21:58	9:54	#1710

Faster pace

Steady pace

Slower pace

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 25%

Garmin Challenge

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

8:16

Segment Time

9:11/mi

Pace

0.90 mi

Distance

Overall

1770

Men

1520

Division

325

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M30-34	Seg. Overall	Seg. Males	Seg. M30-34
2M	2.00 mi	2.00 mi	2567	2136	444	1647(Top 23%)	1397(Top 28%)	293(Top 28%)
4M	4.00 mi	2.00 mi	2320+247	1940+196	406+38	2128(Top 30%)	1792(Top 35%)	376(Top 36%)
6M	6.00 mi	2.00 mi	2223+97	1873+67	396+10	2175(Top 30%)	1852(Top 37%)	387(Top 37%)
8M	8.00 mi	2.00 mi	2023+200	1720+153	363+33	1556(Top 22%)	1339(Top 27%)	290(Top 28%)
9.6M	9.60 mi	1.60 mi	1902+121	1629+91	344+19	1454(Top 20%)	1266(Top 25%)	263(Top 25%)
10M	10.00 mi	0.40 mi	1888+14	1617+12	341+3	1694(Top 24%)	1452(Top 29%)	315(Top 30%)
10.5M	10.50 mi	0.50 mi	1884+4	1615+2	340+1	1945(Top 27%)	1660(Top 33%)	344(Top 33%)
12M	12.00 mi	1.50 mi	1830+54	1568+47	328+12	1647(Top 23%)	1397(Top 28%)	293(Top 28%)
14M	14.00 mi	2.00 mi	1774+56	1519+49	326+2	1596(Top 22%)	1376(Top 27%)	294(Top 28%)
16M	16.00 mi	2.00 mi	1590+184	1361+158	292+34	1069(Top 15%)	917(Top 18%)	182(Top 18%)
18M	18.00 mi	2.00 mi	1708-118	1456-95	311-19	2647(Top 37%)	2111(Top 42%)	436(Top 42%)
20M	20.00 mi	2.00 mi	1693+15	1439+17	302+9	1970(Top 27%)	1615(Top 32%)	329(Top 32%)
22M	22.00 mi	2.00 mi	1754-61	1480-41	302	2275(Top 32%)	1798(Top 36%)	368(Top 35%)
24M	24.00 mi	2.00 mi	1671+83	1400+80	293+9	1457(Top 20%)	1170(Top 23%)	244(Top 23%)
Finish	26.22 mi	2.22 mi	1710-39	1418-18	298-5	2173(Top 30%)	1678(Top 33%)	339(Top 33%)

339

Passing Analysis

Category:

Athletes Passed

1405*

Passed By

548

Net Change

+857

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#2567
2M → 4M	286*	39	+247	#2567	#2320
4M → 6M	134	37	+97	#2320	#2223
6M → 8M	204*	4	+200	#2223	#2023
8M → 9.6M	129	8	+121	#2023	#1902
9.6M → 10M	19	5	+14	#1902	#1888
10M → 10.5M	25	21	+4	#1888	#1884
10.5M → 12M	74	20	+54	#1884	#1830
12M → 14M	71*	15	+56	#1830	#1774
14M → 16M	193*	9	+184	#1774	#1590
16M → 18M	42	160	-118	#1590	#1708
18M → 20M	60*	45	+15	#1708	#1693
20M → 22M	40*	101	-61	#1693	#1754
22M → 24M	101*	18	+83	#1754	#1671
24M → Finish	27*	66	-39	#1671	#1710
TOTALS	1405*	548	+857

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

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:

Category:

📈Position Graph

🎨Heatmap Timeline

🔄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 4 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

Zibo Song

⏱️ Race Timeline

Race Animation with Course Map

Claim it — get your free Race Performance Report

Half Splits

Checkpoint Splits

Checkpoint Splits Visualizations

📈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 Analysis Visualizations

📈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