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SF MARATHON 2026

David Zhong

Bib: 5981•M•Age: 24

Sunnyvale, CA

0:00
0:00
/ mi
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Overall
#0 / 7166
Top 14%
Gender (Male)
#0 / 5052
Top 17%
M20-29
#0 / 648
Top 18%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
16:13
Rank: #915
Start → 2M
16:13 | 8:06/mi
4M
32:15
Rank: #820 (+95)
2M → 4M
16:02 | 8:01/mi
6M
48:17
Rank: #794 (+26)
4M → 6M
16:02 | 8:01/mi
8M
1:04:35
Rank: #838 (-44)
6M → 8M
16:18 | 8:09/mi
9.6M
1:18:03
Rank: #831 (+7)
8M → 9.6M
13:28 | 8:25/mi
10M
1:20:16
Rank: #829 (+2)
9.6M → 10M
2:13 | 5:33/mi
10.5M
1:25:30
Rank: #809 (+20)
10M → 10.5M
5:14 | 10:28/mi
12M
1:37:18
Rank: #832 (-23)
10.5M → 12M
11:48 | 7:52/mi
14M
1:55:12
Rank: #874 (-42)
12M → 14M
17:54 | 8:57/mi
16M
2:11:33
Rank: #970 (-96)
14M → 16M
16:21 | 8:10/mi
18M
2:27:53
Rank: #861 (+109)
16M → 18M
16:20 | 8:10/mi
20M
2:45:45
Rank: #878 (-17)
18M → 20M
17:52 | 8:56/mi
22M
3:02:51
Rank: #910 (-32)
20M → 22M
17:06 | 8:33/mi
24M
3:22:16
Rank: #919 (-9)
22M → 24M
19:25 | 9:43/mi
Finish· 26.22 mi
3:44:08
Rank: #990 (-71)
24M → Finish
21:52 | 9:51/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time1:55:12
Pace8:14 /mi
2nd Half✓ Faster
Distance12.22 mi
Time1:48:56
Pace8:55 /mi
📊Negative Split: 5.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:50:0116:138:0616:13
8:06
-
4M
4.00 mi06:06:0332:158:0416:02
8:01
-0:05
6M
6.00 mi06:22:0548:178:0316:02
8:01
0:00
8M
8.00 mi06:38:231:04:358:0416:18
8:09
+0:08
9.6M
9.60 mi06:51:511:18:038:0813:28
8:25
+0:16
10M
10.00 mi06:54:041:20:168:022:13
5:33
-2:52
10.5M
10.50 mi06:59:181:25:308:095:14
10:28
+4:55
12M
12.00 mi07:11:061:37:188:0711:48
7:52
-2:36
14M
14.00 mi07:29:001:55:128:1417:54
8:57
+1:05
16M
16.00 mi07:45:212:11:338:1316:21
8:10
-0:47
18M
18.00 mi08:01:412:27:538:1316:20
8:10
0:00
20M
20.00 mi08:19:332:45:458:1717:52
8:56
+0:46
22M
22.00 mi08:36:393:02:518:1917:06
8:33
-0:23
24M
24.00 mi08:56:043:22:168:2619:25
9:43
+1:10
Finish
26.22 mi09:17:563:44:088:3321:52
9:51
+0:08

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

5:33 /mi

Average Pace

8:33 /mi

Slowest Pace

10:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13

1% of race

Time at Steady Pace

2:19:38

62% of race

Time at Slower Pace

1:22:17

37% of race

Average Pace: 8:33 /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.

Loading...
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

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi05:50:0116:138:0616:13
8:06
#915
4M
4.00 mi06:06:0332:158:0416:02
8:01
#820
6M
6.00 mi06:22:0548:178:0316:02
8:01
#794
8M
8.00 mi06:38:231:04:358:0416:18
8:09
#838
9.6M
9.60 mi06:51:511:18:038:0813:28
8:25
#831
10M
10.00 mi06:54:041:20:168:022:13
5:33
#829
10.5M
10.50 mi06:59:181:25:308:095:14
10:28
#809
12M
12.00 mi07:11:061:37:188:0711:48
7:52
#832
14M
14.00 mi07:29:001:55:128:1417:54
8:57
#874
16M
16.00 mi07:45:212:11:338:1316:21
8:10
#970
18M
18.00 mi08:01:412:27:538:1316:20
8:10
#861
20M
20.00 mi08:19:332:45:458:1717:52
8:56
#878
22M
22.00 mi08:36:393:02:518:1917:06
8:33
#910
24M
24.00 mi08:56:043:22:168:2619:25
9:43
#919
Finish
26.22 mi09:17:563:44:088:3321:52
9:51
#990
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 10%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

7:27

Segment Time

8:17/mi

Pace

0.90 mi

Distance

Overall

728

Men

662

Division

101

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2.00 mi9158191281074(Top 15%)945(Top 19%)146(Top 23%)
4M4.00 mi2.00 mi820+95737+82114+14761(Top 11%)681(Top 13%)100(Top 15%)
6M6.00 mi2.00 mi794+26714+23109+5783(Top 11%)701(Top 14%)105(Top 16%)
8M8.00 mi2.00 mi838-44751-37116-71030(Top 14%)917(Top 18%)144(Top 22%)
9.6M9.60 mi1.60 mi831+7742+9117-1861(Top 12%)771(Top 15%)127(Top 20%)
10M10.00 mi0.40 mi829+2740+2117821(Top 11%)731(Top 14%)100(Top 15%)
10.5M10.50 mi0.50 mi809+20722+18112+5768(Top 11%)688(Top 14%)108(Top 17%)
12M12.00 mi1.50 mi832-23742-20115-31074(Top 15%)945(Top 19%)146(Top 23%)
14M14.00 mi2.00 mi874-42779-37118-31128(Top 16%)991(Top 20%)143(Top 22%)
16M16.00 mi2.00 mi970-96865-86134-162392(Top 33%)1909(Top 38%)284(Top 44%)
18M18.00 mi2.00 mi861+109768+97116+18535(Top 7%)472(Top 9%)72(Top 11%)
20M20.00 mi2.00 mi878-17782-14111+51330(Top 19%)1114(Top 22%)154(Top 24%)
22M22.00 mi2.00 mi910-32806-24117-61464(Top 20%)1203(Top 24%)176(Top 27%)
24M24.00 mi2.00 mi919-9810-4113+41436(Top 20%)1154(Top 23%)152(Top 23%)
Finish26.22 mi2.22 mi990-71855-45115-22111(Top 29%)1643(Top 33%)233(Top 36%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 15%
×1human
+6ft-11ft

Overall

1074

Males

945

M20-24

147

2M→4M

2.0 - 4.0 mi

Top 11%
×4stories
+75ft-70ft

Overall

761

Males

681

M20-24

101

4M→6M

4.0 - 6.0 mi

Top 11%
×5stories
+71ft-18ft

Overall

783

Males

701

M20-24

108

6M→8M

6.0 - 8.0 mi

Top 14%
×9stories
+106ft-21ft

Overall

1030

Males

917

M20-24

146

8M→9.6M

8.0 - 9.6 mi

Top 12%
×13stories
+117ft-177ft

Overall

861

Males

771

M20-24

128

9.6M→10M

9.6 - 10.0 mi

Top 11%
×1story
+17ft-12ft

Overall

821

Males

731

M20-24

101

10M→10.5M

10.0 - 10.5 mi

Top 11%
×9stories
+0ft-102ft

Overall

768

Males

688

M20-24

109

10.5M→12M

10.5 - 12.0 mi

Top 15%
×18stories
+304ft-125ft

Overall

1074

Males

945

M20-24

147

12M→14M

12.0 - 14.0 mi

Top 16%
×9stories
+99ft-125ft

Overall

1128

Males

991

M20-24

144

14M→16M

14.0 - 16.0 mi

Top 33%
×9stories
+124ft-78ft

Overall

2392

Males

1909

M20-24

285

16M→18M

16.0 - 18.0 mi

Top 7%
×8stories
+106ft-45ft

Overall

535

Males

472

M20-24

72

18M→20M

18.0 - 20.0 mi

Top 19%
×3stories
+52ft-26ft

Overall

1330

Males

1114

M20-24

154

20M→22M

20.0 - 22.0 mi

Top 20%
×21stories
+17ft-266ft

Overall

1464

Males

1203

M20-24

176

22M→24M

22.0 - 24.0 mi

Top 20%
×3stories
+70ft-85ft

Overall

1436

Males

1154

M20-24

152

24M→Finish

24.0 - 26.2 mi

Top 29%
~flat
+2ft-2ft

Overall

2111

Males

1643

M20-24

233

Passing Analysis

Category:
Athletes Passed
431*
Passed By
506
Net Change
-75
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#915
2M → 4M10712+95#915#820
4M → 6M4620+26#820#794
6M → 8M10*54-44#794#838
8M → 9.6M2215+7#838#831
9.6M → 10M42+2#831#829
10M → 10.5M211+20#829#809
10.5M → 12M1437-23#809#832
12M → 14M10*52-42#832#874
14M → 16M11*107-96#874#970
16M → 18M1145+109#970#861
18M → 20M19*36-17#861#878
20M → 22M14*46-32#878#910
22M → 24M2837-9#910#919
24M → Finish11*82-71#919#990
TOTALS431*506-75

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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