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SF MARATHON 1ST HALF 2026

William Chong

San Francisco, CA

Bib: 16806 M 33

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Division (M30-34)
#0 / 772
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:34/mi
21:09
→ flat
4M
10:51/mi
42:51
↑ 67↓ 69
6M
11:18/mi
1:05:27
↑ 123
8M
11:24/mi
1:28:14
↑ 166↓ 53
9.6M
11:24/mi
1:46:28
↑ 68↓ 193
10.26M
15:33/mi
1:56:44
↓ 114
10.5M
13:50/mi
2:00:03
→ flat
12M
20:41/mi
2:31:05
↑ 280
Finish· 13.11 mi
14:25/mi
2:47:04
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:05:2710:55 /mi⚡ faster
2nd Half
1:41:3714:18 /mi+55.3%
Positive split — 55.3% 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
21:0910:342.00 mi21:09
10:34
-
4M
42:5110:432.00 mi21:42
10:51
+0:17
6M
1:05:2710:552.00 mi22:36
11:18
+0:27
8M
1:28:1411:022.00 mi22:47
11:24
+0:06
9.6M
1:46:2811:051.60 mi18:14
11:24
0:00
10.26M
1:56:4411:230.66 mi10:16
15:33
+4:09
10.5M
2:00:0311:260.24 mi3:19
13:50
-1:43
12M
2:31:0512:351.50 mi31:02
20:41
+6:51
Finish(13.11 mi)
2:47:0412:451.11 mi15:59
14:25
-6:16
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

10:34 /mi

Average Pace

12:45 /mi

Slowest Pace

20:41 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:46:28

64% of race

Time at Slower Pace

1:00:36

36% of race

Average Pace: 12:45 /mi

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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 88%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:35

Segment Time

15:06/mi

Pace

0.90 mi

Distance

Overall

5808

Men

3293

Division

702

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi4047260654662613464731
4M2.00 mi4018+292594+12548-240312598537
6M2.00 mi4074-562626-32550-242442691572
8M2.00 mi3989+852595+31545+539632572552
9.6M1.60 mi4268-2792704-109568-2353803099663
10.26M0.66 mi4494-2262799-95595-2757943277701
10.5M0.24 mi4562-682833-34604-960223394714
12M1.50 mi5155-5933087-254669-6562613464731
Finish(13.11 mi)1.11 mi5293-1383131-44676-760753392724

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 95%
~flat
+5ft-3ft

Overall

6261

Males

3464

M30-34

733

2M→4M

2.0 - 4.0 mi

Top 61%
×4story building
+67ft-69ft

Overall

4031

Males

2598

M30-34

540

4M→6M

4.0 - 6.0 mi

Top 65%
×9story building
+123ft-9ft

Overall

4244

Males

2691

M30-34

574

6M→8M

6.0 - 8.0 mi

Top 60%
×12story building
+166ft-53ft

Overall

3963

Males

2572

M30-34

554

8M→9.6M

8.0 - 9.6 mi

Top 82%
×13story building
+68ft-193ft

Overall

5380

Males

3099

M30-34

665

9.6M→10.26M

9.6 - 10.3 mi

Top 88%
×9story building
+0ft-114ft

Overall

5794

Males

3277

M30-34

703

10.26M→10.5M

10.3 - 10.5 mi

Top 92%
~flat
+1ft-0ft

Overall

6022

Males

3394

M30-34

716

10.5M→12M

10.5 - 12.0 mi

Top 95%
×21story building
+280ft-26ft

Overall

6261

Males

3464

M30-34

733

12M→Finish

12.0 - 13.1 mi

Top 92%
×7story building
+14ft-89ft

Overall

6075

Males

3392

M30-34

724

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#4047
2M → 4M
161190+29
#4047 → #4018
4M → 6M
160104*-56
#4018 → #4074
6M → 8M
115200*+85
#4074 → #3989
8M → 9.6M
29617-279
#3989 → #4268
9.6M → 10.26M
2359-226
#4268 → #4494
10.26M → 10.5M
702-68
#4494 → #4562
10.5M → 12M
6007*-593
#4562 → #5155
12M → Finish
16931*-138
#5155 → #5293
TOTALS
1806560*-1246
#4047 → #5293

* 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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Race Place Events