Justin Williamson

Bib: 10791•M•Age: 25

SF, CA

0:00

0:00

/ mi

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Overall

#0 / 7166

Top 18%

Gender (Male)

#0 / 5052

Top 21%

Division (M25-29)

#0 / 1176

Top 24%

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

18:40

Rank: #2985

Start → 2M

18:40 | 9:20/mi

18:40

Rank: #2985

Start → 2M

18:40 | 9:20/mi

36:20

Rank: #2423 (+562)

2M → 4M

17:40 | 8:50/mi

36:20

Rank: #2423 (+562)

2M → 4M

17:40 | 8:50/mi

53:13

Rank: #1939 (+484)

4M → 6M

16:53 | 8:26/mi

53:13

Rank: #1939 (+484)

4M → 6M

16:53 | 8:26/mi

1:11:27

Rank: #2102 (-163)

6M → 8M

18:14 | 9:07/mi

1:11:27

Rank: #2102 (-163)

6M → 8M

18:14 | 9:07/mi

9.6M

1:26:04

Rank: #2031 (+71)

8M → 9.6M

14:37 | 9:08/mi

9.6M

1:26:04

Rank: #2031 (+71)

8M → 9.6M

14:37 | 9:08/mi

10M

1:28:24

Rank: #2008 (+23)

9.6M → 10M

2:20 | 5:50/mi

10M

1:28:24

Rank: #2008 (+23)

9.6M → 10M

2:20 | 5:50/mi

10.5M

1:34:11

Rank: #1975 (+33)

10M → 10.5M

5:47 | 11:34/mi

10.5M

1:34:11

Rank: #1975 (+33)

10M → 10.5M

5:47 | 11:34/mi

12M

1:46:28

Rank: #1898 (+77)

10.5M → 12M

12:17 | 8:11/mi

12M

1:46:28

Rank: #1898 (+77)

10.5M → 12M

12:17 | 8:11/mi

14M

2:04:51

Rank: #1818 (+80)

12M → 14M

18:23 | 9:11/mi

14M

2:04:51

Rank: #1818 (+80)

12M → 14M

18:23 | 9:11/mi

16M

2:18:33

Rank: #1563 (+255)

14M → 16M

13:42 | 6:51/mi

16M

2:18:33

Rank: #1563 (+255)

14M → 16M

13:42 | 6:51/mi

18M

2:38:14

Rank: #1592 (-29)

16M → 18M

19:41 | 9:51/mi

18M

2:38:14

Rank: #1592 (-29)

16M → 18M

19:41 | 9:51/mi

20M

2:55:38

Rank: #1481 (+111)

18M → 20M

17:24 | 8:42/mi

20M

2:55:38

Rank: #1481 (+111)

18M → 20M

17:24 | 8:42/mi

22M

3:11:36

Rank: #1370 (+111)

20M → 22M

15:58 | 7:59/mi

22M

3:11:36

Rank: #1370 (+111)

20M → 22M

15:58 | 7:59/mi

24M

3:30:32

Rank: #1311 (+59)

22M → 24M

18:56 | 9:28/mi

24M

3:30:32

Rank: #1311 (+59)

22M → 24M

18:56 | 9:28/mi

Finish· 26.22 mi

3:50:13

Rank: #1257 (+54)

24M → Finish

19:41 | 8:52/mi

Finish· 26.22 mi

3:50:13

Rank: #1257 (+54)

24M → Finish

19:41 | 8:52/mi

The Course

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Half Splits

1st Half· via 14M

Distance14.00 mi

Time2:04:51

Pace8:55 /mi

2nd Half✓ Faster

Distance12.22 mi

Time1:45:22

Pace8:37 /mi

📊Negative Split: 15.6% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	05:58:07	18:40	9:20	18:40	9:20	-
4M	4.00 mi	06:15:47	36:20	9:05	17:40	8:50	-0:30
6M	6.00 mi	06:32:40	53:13	8:52	16:53	8:26	-0:24
8M	8.00 mi	06:50:54	1:11:27	8:56	18:14	9:07	+0:41
9.6M	9.60 mi	07:05:31	1:26:04	8:58	14:37	9:08	+0:01
10M	10.00 mi	07:07:51	1:28:24	8:50	2:20	5:50	-3:18
10.5M	10.50 mi	07:13:38	1:34:11	8:58	5:47	11:34	+5:44
12M	12.00 mi	07:25:55	1:46:28	8:52	12:17	8:11	-3:23
14M	14.00 mi	07:44:18	2:04:51	8:55	18:23	9:11	+1:00
16M	16.00 mi	07:58:00	2:18:33	8:40	13:42	6:51	-2:20
18M	18.00 mi	08:17:41	2:38:14	8:47	19:41	9:51	+3:00
20M	20.00 mi	08:35:05	2:55:38	8:47	17:24	8:42	-1:09
22M	22.00 mi	08:51:03	3:11:36	8:43	15:58	7:59	-0:43
24M	24.00 mi	09:09:59	3:30:32	8:46	18:56	9:28	+1:29
Finish	26.22 mi	09:29:40	3:50:13	8:47	19:41	8:52	-0:36

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

5:50 /mi

Average Pace

8:47 /mi

Slowest Pace

11:34 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:17

19% of race

Time at Steady Pace

2:40:28

70% of race

Time at Slower Pace

25:28

11% of race

Average Pace: 8:47 /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	05:58:07	18:40	9:20	18:40	9:20	#2985
4M	4.00 mi	06:15:47	36:20	9:05	17:40	8:50	#2423
6M	6.00 mi	06:32:40	53:13	8:52	16:53	8:26	#1939
8M	8.00 mi	06:50:54	1:11:27	8:56	18:14	9:07	#2102
9.6M	9.60 mi	07:05:31	1:26:04	8:58	14:37	9:08	#2031
10M	10.00 mi	07:07:51	1:28:24	8:50	2:20	5:50	#2008
10.5M	10.50 mi	07:13:38	1:34:11	8:58	5:47	11:34	#1975
12M	12.00 mi	07:25:55	1:46:28	8:52	12:17	8:11	#1898
14M	14.00 mi	07:44:18	2:04:51	8:55	18:23	9:11	#1818
16M	16.00 mi	07:58:00	2:18:33	8:40	13:42	6:51	#1563
18M	18.00 mi	08:17:41	2:38:14	8:47	19:41	9:51	#1592
20M	20.00 mi	08:35:05	2:55:38	8:47	17:24	8:42	#1481
22M	22.00 mi	08:51:03	3:11:36	8:43	15:58	7:59	#1370
24M	24.00 mi	09:09:59	3:30:32	8:46	18:56	9:28	#1311
Finish	26.22 mi	09:29:40	3:50:13	8:47	19:41	8:52	#1257

Faster pace

Steady pace

Slower pace

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 21%

Garmin Challenge

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

8:07

Segment Time

9:01/mi

Pace

0.90 mi

Distance

Overall

1521

Men

1319

Division

330

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	2985	2443	603	1567(Top 22%)	1338(Top 26%)	358(Top 30%)
4M	4.00 mi	2.00 mi	2423+562	2027+416	486+117	1902(Top 27%)	1623(Top 32%)	377(Top 32%)
6M	6.00 mi	2.00 mi	1939+484	1656+371	394+92	1254(Top 17%)	1091(Top 22%)	280(Top 24%)
8M	8.00 mi	2.00 mi	2102-163	1781-125	422-28	2745(Top 38%)	2280(Top 45%)	572(Top 49%)
9.6M	9.60 mi	1.60 mi	2031+71	1729+52	415+7	1864(Top 26%)	1600(Top 32%)	403(Top 34%)
10M	10.00 mi	0.40 mi	2008+23	1709+20	412+3	1326(Top 19%)	1153(Top 23%)	292(Top 25%)
10.5M	10.50 mi	0.50 mi	1975+33	1684+25	410+2	1733(Top 24%)	1491(Top 30%)	377(Top 32%)
12M	12.00 mi	1.50 mi	1898+77	1625+59	398+12	1567(Top 22%)	1338(Top 26%)	358(Top 30%)
14M	14.00 mi	2.00 mi	1818+80	1555+70	381+17	1434(Top 20%)	1245(Top 25%)	319(Top 27%)
16M	16.00 mi	2.00 mi	1563+255	1345+210	333+48	775(Top 11%)	680(Top 13%)	177(Top 15%)
18M	18.00 mi	2.00 mi	1592-29	1361-16	340-7	2069(Top 29%)	1703(Top 34%)	429(Top 36%)
20M	20.00 mi	2.00 mi	1481+111	1263+98	320+20	1060(Top 15%)	906(Top 18%)	242(Top 21%)
22M	22.00 mi	2.00 mi	1370+111	1175+88	300+20	851(Top 12%)	730(Top 14%)	202(Top 17%)
24M	24.00 mi	2.00 mi	1311+59	1116+59	291+9	1200(Top 17%)	968(Top 19%)	255(Top 22%)
Finish	26.22 mi	2.22 mi	1257+54	1068+48	277+14	987(Top 14%)	802(Top 16%)	216(Top 18%)

216

Passing Analysis

Category:

Athletes Passed

2098*

Passed By

370

Net Change

+1728

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#2985
2M → 4M	571*	9	+562	#2985	#2423
4M → 6M	485	1	+484	#2423	#1939
6M → 8M	14*	177	-163	#1939	#2102
8M → 9.6M	87	16	+71	#2102	#2031
9.6M → 10M	26	3	+23	#2031	#2008
10M → 10.5M	44	11	+33	#2008	#1975
10.5M → 12M	84	7	+77	#1975	#1898
12M → 14M	89*	9	+80	#1898	#1818
14M → 16M	255*	0	+255	#1818	#1563
16M → 18M	77	106	-29	#1563	#1592
18M → 20M	113*	2	+111	#1592	#1481
20M → 22M	112*	1	+111	#1481	#1370
22M → 24M	77*	18	+59	#1370	#1311
24M → Finish	64*	10	+54	#1311	#1257
TOTALS	2098*	370	+1728

* 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 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

Justin Williamson

⏱️ 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

🔥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