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SF MARATHON 2026

Guanjie Cheng

Bib: 4709•M•Age: 29

Los Altos Hills, CA

0:00
0:00
/ mi
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Overall
#0 / 7166
Top 46%
Gender (Male)
#0 / 5052
Division (M25-29)
#0 / 1176
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
17:49
Rank: #2030
Start → 2M
17:49 | 8:54/mi
4M
35:35
Rank: #2005 (+25)
2M → 4M
17:46 | 8:53/mi
6M
53:25
Rank: #1986 (+19)
4M → 6M
17:50 | 8:55/mi
8M
1:10:49
Rank: #1959 (+27)
6M → 8M
17:24 | 8:42/mi
9.6M
1:26:40
Rank: #2166 (-207)
8M → 9.6M
15:51 | 9:54/mi
10M
1:29:11
Rank: #2165 (+1)
9.6M → 10M
2:31 | 6:18/mi
10.5M
1:37:37
Rank: #2627 (-462)
10M → 10.5M
8:26 | 16:52/mi
12M
1:50:11
Rank: #2488 (+139)
10.5M → 12M
12:34 | 8:23/mi
14M
2:10:11
Rank: #2518 (-30)
12M → 14M
20:00 | 10:00/mi
16M
2:29:04
Rank: #2693 (-175)
14M → 16M
18:53 | 9:27/mi
18M
2:47:57
Rank: #2519 (+174)
16M → 18M
18:53 | 9:27/mi
20M
3:12:32
Rank: #2783 (-264)
18M → 20M
24:35 | 12:17/mi
22M
3:36:03
Rank: #3028 (-245)
20M → 22M
23:31 | 11:45/mi
24M
4:02:03
Rank: #3195 (-167)
22M → 24M
26:00 | 13:00/mi
Finish· 26.22 mi
4:28:06
Rank: #3285 (-90)
24M → Finish
26:03 | 11:44/mi

The Course

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Half Splits

1st Half· via 14MFaster
Distance14.00 mi
Time2:10:11
Pace9:18 /mi
2nd Half
Distance12.22 mi
Time2:17:55
Pace11:17 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:49:0917:498:5417:49
8:54
-
4M
4.00 mi06:06:5535:358:5417:46
8:53
-0:01
6M
6.00 mi06:24:4553:258:5417:50
8:55
+0:02
8M
8.00 mi06:42:091:10:498:5117:24
8:42
-0:13
9.6M
9.60 mi06:58:001:26:409:0215:51
9:54
+1:12
10M
10.00 mi07:00:311:29:118:552:31
6:18
-3:36
10.5M
10.50 mi07:08:571:37:379:188:26
16:52
+10:34
12M
12.00 mi07:21:311:50:119:1112:34
8:23
-8:29
14M
14.00 mi07:41:312:10:119:1820:00
10:00
+1:37
16M
16.00 mi08:00:242:29:049:1918:53
9:27
-0:33
18M
18.00 mi08:19:172:47:579:2018:53
9:27
0:00
20M
20.00 mi08:43:523:12:329:3824:35
12:17
+2:50
22M
22.00 mi09:07:233:36:039:4923:31
11:45
-0:32
24M
24.00 mi09:33:234:02:0310:0526:00
13:00
+1:15
Finish
26.22 mi09:59:264:28:0610:1426:03
11:44
-1:16

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

6:18 /mi

Average Pace

10:14 /mi

Slowest Pace

16:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31

1% of race

Time at Steady Pace

2:37:00

59% of race

Time at Slower Pace

1:48:35

41% of race

Average Pace: 10:14 /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 mi05:49:0917:498:5417:49
8:54
#2030
4M
4.00 mi06:06:5535:358:5417:46
8:53
#2005
6M
6.00 mi06:24:4553:258:5417:50
8:55
#1986
8M
8.00 mi06:42:091:10:498:5117:24
8:42
#1959
9.6M
9.60 mi06:58:001:26:409:0215:51
9:54
#2166
10M
10.00 mi07:00:311:29:118:552:31
6:18
#2165
10.5M
10.50 mi07:08:571:37:379:188:26
16:52
#2627
12M
12.00 mi07:21:311:50:119:1112:34
8:23
#2488
14M
14.00 mi07:41:312:10:119:1820:00
10:00
#2518
16M
16.00 mi08:00:242:29:049:1918:53
9:27
#2693
18M
18.00 mi08:19:172:47:579:2018:53
9:27
#2519
20M
20.00 mi08:43:523:12:329:3824:35
12:17
#2783
22M
22.00 mi09:07:233:36:039:4923:31
11:45
#3028
24M
24.00 mi09:33:234:02:0310:0526:00
13:00
#3195
Finish
26.22 mi09:59:264:28:0610:1426:03
11:44
#3285
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 77%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:57

Segment Time

12:10/mi

Pace

0.90 mi

Distance

Overall

5513

Men

4065

Division

987

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi203017314191905(Top 27%)1605(Top 32%)415(Top 35%)
4M4.00 mi2.00 mi2005+251710+21409+101991(Top 28%)1689(Top 33%)393(Top 33%)
6M6.00 mi2.00 mi1986+191690+20403+62047(Top 29%)1750(Top 35%)420(Top 36%)
8M8.00 mi2.00 mi1959+271671+19397+61924(Top 27%)1637(Top 32%)400(Top 34%)
9.6M9.60 mi1.60 mi2166-2071839-168444-473026(Top 42%)2480(Top 49%)620(Top 53%)
10M10.00 mi0.40 mi2165+118394442416(Top 34%)2022(Top 40%)492(Top 42%)
10.5M10.50 mi0.50 mi2627-4622173-334546-1026223(Top 87%)4481(Top 89%)1064(Top 90%)
12M12.00 mi1.50 mi2488+1392079+94524+221905(Top 27%)1605(Top 32%)415(Top 35%)
14M14.00 mi2.00 mi2518-302101-22522+22698(Top 38%)2219(Top 44%)553(Top 47%)
16M16.00 mi2.00 mi2693-1752227-126557-354034(Top 56%)3085(Top 61%)770(Top 65%)
18M18.00 mi2.00 mi2519+1742085+142512+451643(Top 23%)1377(Top 27%)363(Top 31%)
20M20.00 mi2.00 mi2783-2642278-193568-565097(Top 71%)3688(Top 73%)890(Top 76%)
22M22.00 mi2.00 mi3028-2452433-155600-325027(Top 70%)3607(Top 71%)867(Top 74%)
24M24.00 mi2.00 mi3195-1672530-97620-204795(Top 67%)3435(Top 68%)845(Top 72%)
Finish26.22 mi2.22 mi3285-902575-45637-174300(Top 60%)3105(Top 61%)774(Top 66%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 27%
×1human
+6ft-11ft

Overall

1905

Males

1605

M25-29

417

2M→4M

2.0 - 4.0 mi

Top 28%
×4stories
+75ft-70ft

Overall

1991

Males

1689

M25-29

395

4M→6M

4.0 - 6.0 mi

Top 29%
×5stories
+71ft-18ft

Overall

2047

Males

1750

M25-29

423

6M→8M

6.0 - 8.0 mi

Top 27%
×9stories
+106ft-21ft

Overall

1924

Males

1637

M25-29

403

8M→9.6M

8.0 - 9.6 mi

Top 42%
×13stories
+117ft-177ft

Overall

3026

Males

2480

M25-29

624

9.6M→10M

9.6 - 10.0 mi

Top 34%
×1story
+17ft-12ft

Overall

2416

Males

2022

M25-29

495

10M→10.5M

10.0 - 10.5 mi

Top 87%
×9stories
+0ft-102ft

Overall

6223

Males

4481

M25-29

1072

10.5M→12M

10.5 - 12.0 mi

Top 27%
×18stories
+304ft-125ft

Overall

1905

Males

1605

M25-29

417

12M→14M

12.0 - 14.0 mi

Top 38%
×9stories
+99ft-125ft

Overall

2698

Males

2219

M25-29

556

14M→16M

14.0 - 16.0 mi

Top 56%
×9stories
+124ft-78ft

Overall

4034

Males

3085

M25-29

771

16M→18M

16.0 - 18.0 mi

Top 23%
×8stories
+106ft-45ft

Overall

1643

Males

1377

M25-29

364

18M→20M

18.0 - 20.0 mi

Top 71%
×3stories
+52ft-26ft

Overall

5097

Males

3688

M25-29

892

20M→22M

20.0 - 22.0 mi

Top 70%
×21stories
+17ft-266ft

Overall

5027

Males

3607

M25-29

868

22M→24M

22.0 - 24.0 mi

Top 67%
×3stories
+70ft-85ft

Overall

4795

Males

3435

M25-29

846

24M→Finish

24.0 - 26.2 mi

Top 60%
~flat
+2ft-2ft

Overall

4300

Males

3105

M25-29

774

Passing Analysis

Category:
Athletes Passed
778*
Passed By
2033
Net Change
-1255
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2030
2M → 4M12297+25#2030#2005
4M → 6M7253+19#2005#1986
6M → 8M58*31+27#1986#1959
8M → 9.6M13220-207#1959#2166
9.6M → 10M1211+1#2166#2165
10M → 10.5M4466-462#2165#2627
10.5M → 12M1456+139#2627#2488
12M → 14M36*66-30#2488#2518
14M → 16M38*213-175#2518#2693
16M → 18M19420+174#2693#2519
18M → 20M10*274-264#2519#2783
20M → 22M12*257-245#2783#3028
22M → 24M29*196-167#3028#3195
24M → Finish33*123-90#3195#3285
TOTALS778*2033-1255

* 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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