Jonathon Tai

Bib: 3466•M•Age: 39

San Francisco, CA

0:00

0:00

/ mi

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Overall

#0 / 7166

Top 38%

Gender (Male)

#0 / 5052

Top 43%

Division (M35-39)

#0 / 717

Top 42%

Race Day Weather

59°/49°F

scattered clouds

⏱️ Race Timeline

Start

0:00:00

Race begins

Start

0:00:00

Race begins

18:54

Rank: #3199

Start → 2M

18:54 | 9:27/mi

18:54

Rank: #3199

Start → 2M

18:54 | 9:27/mi

38:18

Rank: #3316 (-117)

2M → 4M

19:24 | 9:42/mi

38:18

Rank: #3316 (-117)

2M → 4M

19:24 | 9:42/mi

57:48

Rank: #3320 (-4)

4M → 6M

19:30 | 9:45/mi

57:48

Rank: #3320 (-4)

4M → 6M

19:30 | 9:45/mi

1:16:30

Rank: #3251 (+69)

6M → 8M

18:42 | 9:21/mi

1:16:30

Rank: #3251 (+69)

6M → 8M

18:42 | 9:21/mi

9.6M

1:31:50

Rank: #3107 (+144)

8M → 9.6M

15:20 | 9:35/mi

9.6M

1:31:50

Rank: #3107 (+144)

8M → 9.6M

15:20 | 9:35/mi

10M

1:34:24

Rank: #3093 (+14)

9.6M → 10M

2:34 | 6:25/mi

10M

1:34:24

Rank: #3093 (+14)

9.6M → 10M

2:34 | 6:25/mi

10.5M

1:40:36

Rank: #3050 (+43)

10M → 10.5M

6:12 | 12:24/mi

10.5M

1:40:36

Rank: #3050 (+43)

10M → 10.5M

6:12 | 12:24/mi

12M

1:53:46

Rank: #2961 (+89)

10.5M → 12M

13:10 | 8:47/mi

12M

1:53:46

Rank: #2961 (+89)

10.5M → 12M

13:10 | 8:47/mi

14M

2:13:44

Rank: #2893 (+68)

12M → 14M

19:58 | 9:59/mi

14M

2:13:44

Rank: #2893 (+68)

12M → 14M

19:58 | 9:59/mi

16M

2:32:42

Rank: #2999 (-106)

14M → 16M

18:58 | 9:29/mi

16M

2:32:42

Rank: #2999 (-106)

14M → 16M

18:58 | 9:29/mi

18M

2:51:39

Rank: #2783 (+216)

16M → 18M

18:57 | 9:29/mi

18M

2:51:39

Rank: #2783 (+216)

16M → 18M

18:57 | 9:29/mi

20M

3:12:28

Rank: #2778 (+5)

18M → 20M

20:49 | 10:24/mi

20M

3:12:28

Rank: #2778 (+5)

18M → 20M

20:49 | 10:24/mi

22M

3:32:42

Rank: #2806 (-28)

20M → 22M

20:14 | 10:07/mi

22M

3:32:42

Rank: #2806 (-28)

20M → 22M

20:14 | 10:07/mi

24M

3:54:29

Rank: #2735 (+71)

22M → 24M

21:47 | 10:54/mi

24M

3:54:29

Rank: #2735 (+71)

22M → 24M

21:47 | 10:54/mi

Finish· 26.22 mi

4:17:53

Rank: #2707 (+28)

24M → Finish

23:24 | 10:33/mi

Finish· 26.22 mi

4:17:53

Rank: #2707 (+28)

24M → Finish

23:24 | 10:33/mi

The Course

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Half Splits

1st Half· via 14M

Distance14.00 mi

Time2:13:44

Pace9:33 /mi

2nd Half✓ Faster

Distance12.22 mi

Time2:04:09

Pace10:10 /mi

📊Negative Split: 7.2% faster second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
2M	2.00 mi	05:41:27	18:54	9:27	18:54	9:27	-
4M	4.00 mi	06:00:51	38:18	9:35	19:24	9:42	+0:15
6M	6.00 mi	06:20:21	57:48	9:38	19:30	9:45	+0:03
8M	8.00 mi	06:39:03	1:16:30	9:34	18:42	9:21	-0:24
9.6M	9.60 mi	06:54:23	1:31:50	9:34	15:20	9:35	+0:14
10M	10.00 mi	06:56:57	1:34:24	9:26	2:34	6:25	-3:10
10.5M	10.50 mi	07:03:09	1:40:36	9:35	6:12	12:24	+5:59
12M	12.00 mi	07:16:19	1:53:46	9:29	13:10	8:47	-3:37
14M	14.00 mi	07:36:17	2:13:44	9:33	19:58	9:59	+1:12
16M	16.00 mi	07:55:15	2:32:42	9:33	18:58	9:29	-0:30
18M	18.00 mi	08:14:12	2:51:39	9:32	18:57	9:29	0:00
20M	20.00 mi	08:35:01	3:12:28	9:37	20:49	10:24	+0:55
22M	22.00 mi	08:55:15	3:32:42	9:40	20:14	10:07	-0:17
24M	24.00 mi	09:17:02	3:54:29	9:46	21:47	10:54	+0:47
Finish	26.22 mi	09:40:26	4:17:53	9:51	23:24	10:33	-0:21

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

6:25 /mi

Average Pace

9:51 /mi

Slowest Pace

12:24 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:44

6% of race

Time at Steady Pace

2:49:57

66% of race

Time at Slower Pace

1:12:12

28% of race

Average Pace: 9:50 /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	05:41:27	18:54	9:27	18:54	9:27	#3199
4M	4.00 mi	06:00:51	38:18	9:35	19:24	9:42	#3316
6M	6.00 mi	06:20:21	57:48	9:38	19:30	9:45	#3320
8M	8.00 mi	06:39:03	1:16:30	9:34	18:42	9:21	#3251
9.6M	9.60 mi	06:54:23	1:31:50	9:34	15:20	9:35	#3107
10M	10.00 mi	06:56:57	1:34:24	9:26	2:34	6:25	#3093
10.5M	10.50 mi	07:03:09	1:40:36	9:35	6:12	12:24	#3050
12M	12.00 mi	07:16:19	1:53:46	9:29	13:10	8:47	#2961
14M	14.00 mi	07:36:17	2:13:44	9:33	19:58	9:59	#2893
16M	16.00 mi	07:55:15	2:32:42	9:33	18:58	9:29	#2999
18M	18.00 mi	08:14:12	2:51:39	9:32	18:57	9:29	#2783
20M	20.00 mi	08:35:01	3:12:28	9:37	20:49	10:24	#2778
22M	22.00 mi	08:55:15	3:32:42	9:40	20:14	10:07	#2806
24M	24.00 mi	09:17:02	3:54:29	9:46	21:47	10:54	#2735
Finish	26.22 mi	09:40:26	4:17:53	9:51	23:24	10:33	#2707

Faster pace

Steady pace

Slower pace

Est.Checkpoint not recorded (estimated)

~Segment time uses estimated prior

Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 37%

Garmin Challenge

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

8:46

Segment Time

9:45/mi

Pace

0.90 mi

Distance

Overall

2635

Men

2183

Division

296

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Males	M35-39	Seg. Overall	Seg. Males	Seg. M35-39
2M	2.00 mi	2.00 mi	3199	2606	345	2507(Top 35%)	2085(Top 41%)	279(Top 39%)
4M	4.00 mi	2.00 mi	3316-117	2688-82	357-12	3472(Top 48%)	2803(Top 55%)	374(Top 52%)
6M	6.00 mi	2.00 mi	3320-4	2698-10	363-6	3467(Top 48%)	2809(Top 56%)	378(Top 53%)
8M	8.00 mi	2.00 mi	3251+69	2652+46	357+6	3141(Top 44%)	2570(Top 51%)	348(Top 49%)
9.6M	9.60 mi	1.60 mi	3107+144	2545+107	347+10	2613(Top 36%)	2173(Top 43%)	288(Top 40%)
10M	10.00 mi	0.40 mi	3093+14	2536+9	343+4	2703(Top 38%)	2231(Top 44%)	302(Top 42%)
10.5M	10.50 mi	0.50 mi	3050+43	2502+34	340+3	2735(Top 38%)	2236(Top 44%)	301(Top 42%)
12M	12.00 mi	1.50 mi	2961+89	2442+60	332+8	2507(Top 35%)	2085(Top 41%)	279(Top 39%)
14M	14.00 mi	2.00 mi	2893+68	2391+51	320+12	2664(Top 37%)	2190(Top 43%)	286(Top 40%)
16M	16.00 mi	2.00 mi	2999-106	2457-66	332-12	4082(Top 57%)	3110(Top 62%)	443(Top 62%)
18M	18.00 mi	2.00 mi	2783+216	2285+172	314+18	1696(Top 24%)	1409(Top 28%)	188(Top 26%)
20M	20.00 mi	2.00 mi	2778+5	2274+11	310+4	3037(Top 42%)	2358(Top 47%)	335(Top 47%)
22M	22.00 mi	2.00 mi	2806-28	2278-4	311-1	3270(Top 46%)	2481(Top 49%)	342(Top 48%)
24M	24.00 mi	2.00 mi	2735+71	2209+69	301+10	2719(Top 38%)	2047(Top 41%)	290(Top 40%)
Finish	26.22 mi	2.22 mi	2707+28	2178+31	303-2	2939(Top 41%)	2180(Top 43%)	312(Top 44%)

312

Passing Analysis

Category:

Athletes Passed

1246*

Passed By

754

Net Change

+492

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 2M	-	-	-	-	#3199
2M → 4M	82*	199	-117	#3199	#3316
4M → 6M	87	91	-4	#3316	#3320
6M → 8M	103*	34	+69	#3320	#3251
8M → 9.6M	150*	6	+144	#3251	#3107
9.6M → 10M	18	4	+14	#3107	#3093
10M → 10.5M	56	13	+43	#3093	#3050
10.5M → 12M	101	12	+89	#3050	#2961
12M → 14M	81*	13	+68	#2961	#2893
14M → 16M	55*	161	-106	#2893	#2999
16M → 18M	227	11	+216	#2999	#2783
18M → 20M	52*	47	+5	#2783	#2778
20M → 22M	57*	85	-28	#2778	#2806
22M → 24M	102*	31	+71	#2806	#2735
24M → Finish	75*	47	+28	#2735	#2707
TOTALS	1246*	754	+492

* 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 8 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

Jonathon Tai

⏱️ 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