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SF MARATHON 1ST HALF 2026

Xiaojiang Guo

Los Altos, CA

Bib: 15732 M 38

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 49%
Gender (Male)
#0 / 3619
Division (M35-39)
#0 / 582
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
10:20/mi
20:40
→ flat
12 ft elev
4M
10:11/mi
41:01
↑ 67↓ 69
10 ft elev
6M
10:32/mi
1:02:05
↑ 1231.1%
126 ft elev
8M
11:48/mi
1:25:41
↑ 166↓ 531.1%
246 ft elev
9.6M
7:46/mi
1:38:07
↑ 68↓ 1931.5%
126 ft elev
10M
21:06/mi
1:46:33
↓ 241.1%
90 ft elev
10.5M
5:06/mi
1:49:06
↓ 732.7%
18 ft elev
12M
14:49/mi
2:11:20
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
10:21/mi
2:22:49
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:02:0510:21 /mi⚡ faster
2nd Half
1:20:4411:21 /mi+30.0%
Positive split — 30.0% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
20:4010:202.00 mi20:40
10:20
-
4M
41:0110:152.00 mi20:21
10:11
-0:09
6M
1:02:0510:212.00 mi21:04
10:32
+0:21
8M
1:25:4110:432.00 mi23:36
11:48
+1:16
9.6M
1:38:0710:131.60 mi12:26
7:46
-4:02
10M
1:46:3310:390.40 mi8:26
21:06
+13:20
10.5M
1:49:0610:230.50 mi2:33
5:06
-16:00
12M
2:11:2010:571.50 mi22:14
14:49
+9:43
Finish(13.11 mi)
2:22:4910:541.11 mi11:29
10:21
-4:28
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

5:06 /mi

Average Pace

10:54 /mi

Slowest Pace

21:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

14:59

10% of race

Time at Steady Pace

1:37:10

68% of race

Time at Slower Pace

30:40

21% of race

Average Pace: 10:54 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower
Featured Segment

Garmin Challenge

Top 59%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:59

Segment Time

12:12/mi

Pace

0.90 mi

Distance

Overall

3853

Men

2446

Division

410

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi3626237740534052174371
4M2.00 mi3298+3282204+173376+2930722090353
6M2.00 mi3286+122209-5369+733642244376
8M2.00 mi3582-2962369-160397-2843632767463
9.6M1.60 mi3139+4432134+235363+341319872142
10M0.40 mi3205-662158-24367-440982539422
10.5M0.50 mi32052156+2366+133992223364
12M1.50 mi3223-182159-3365+134052174371
Finish(13.11 mi)1.11 mi3209+142149+10360+533042131346

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 52%
~flat
+5ft-3ft

Overall

3405

Males

2174

M35-39

371

2M→4M

2.0 - 4.0 mi

Top 47%
×4story building
+67ft-69ft

Overall

3072

Males

2090

M35-39

353

4M→6M

4.0 - 6.0 mi

Top 51%
×9story building
+123ft-9ft

Overall

3364

Males

2244

M35-39

376

6M→8M

6.0 - 8.0 mi

Top 66%
×12story building
+166ft-53ft

Overall

4363

Males

2767

M35-39

463

8M→9.6M

8.0 - 9.6 mi

Top 20%
×13story building
+68ft-193ft

Overall

1319

Males

872

M35-39

142

9.6M→10M

9.6 - 10.0 mi

Top 62%
×2story building
+0ft-24ft

Overall

4098

Males

2539

M35-39

422

10M→10.5M

10.0 - 10.5 mi

Top 52%
×6story building
+1ft-73ft

Overall

3399

Males

2223

M35-39

364

10.5M→12M

10.5 - 12.0 mi

Top 52%
×21story building
+280ft-26ft

Overall

3405

Males

2174

M35-39

371

12M→Finish

12.0 - 13.1 mi

Top 50%
×7story building
+14ft-89ft

Overall

3304

Males

2131

M35-39

346

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#3626
2M → 4M
57385+328
#3626 → #3298
4M → 6M
108120+12
#3298 → #3286
6M → 8M
32731*-296
#3286 → #3582
8M → 9.6M
4447+443
#3582 → #3139
9.6M → 10M
8317-66
#3139 → #3205
10M → 10.5M
12120
#3205 → #3205
10.5M → 12M
8971-18
#3205 → #3223
12M → Finish
3953*+14
#3223 → #3209
TOTALS
7191136*+417
#3626 → #3209

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

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

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