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SF MARATHON 1ST HALF 2026

Changwoo Song

Bib: 14897•M•Age: 32

Oakland, CA

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

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:35/mi
21:10
→ flat
4M
10:17/mi
41:43
↑ 67↓ 69
6M
10:12/mi
1:02:07
↑ 1231.1%
8M
11:48/mi
1:25:43
↑ 166↓ 531.1%
9.6M
8:24/mi
1:39:10
↑ 68↓ 1931.5%
10M
22:32/mi
1:48:10
↓ 241.1%
10.5M
5:22/mi
1:50:51
↓ 732.7%
12M
16:47/mi
2:16:01
↑ 2803.2%
Finish· 13.11 mi
16:47/mi
2:34:38
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:02:07
Pace10:21 /mi
2nd Half
Distance7.11 mi
Time1:32:31
Pace13:01 /mi
📊Positive Split: 48.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:08:2521:1010:3521:10
10:35
-
4M
4.00 mi07:28:5841:4310:2620:33
10:17
-0:18
6M
6.00 mi07:49:221:02:0710:2120:24
10:12
-0:05
8M
8.00 mi08:12:581:25:4310:4323:36
11:48
+1:36
9.6M
9.60 mi08:26:251:39:1010:2013:27
8:24
-3:24
10M
10.00 mi08:35:251:48:1010:499:00
22:32
+14:08
10.5M
10.50 mi08:38:061:50:5110:332:41
5:22
-17:10
12M
12.00 mi09:03:162:16:0111:2025:10
16:47
+11:25
Finish
13.11 mi09:21:532:34:3811:4818:37
16:47
0:00

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

5:22 /mi

Average Pace

11:48 /mi

Slowest Pace

22:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41

2% of race

Time at Steady Pace

1:39:10

64% of race

Time at Slower Pace

52:47

34% of race

Average Pace: 11:48 /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...
0mi3.3mi6.6mi9.8mi13.1mi
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 mi07:08:2521:1010:3521:10
10:35
#4059
4M
4.00 mi07:28:5841:4310:2620:33
10:17
#3589
6M
6.00 mi07:49:221:02:0710:2120:24
10:12
#3296
8M
8.00 mi08:12:581:25:4310:4323:36
11:48
#3586
9.6M
9.60 mi08:26:251:39:1010:2013:27
8:24
#3276
10M
10.00 mi08:35:251:48:1010:499:00
22:32
#3398
10.5M
10.50 mi08:38:061:50:5110:332:41
5:22
#3410
12M
12.00 mi09:03:162:16:0111:2025:10
16:47
#3677
Finish
13.11 mi09:21:532:34:3811:4818:37
16:47
#4258
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 69%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:41

Segment Time

12:59/mi

Pace

0.90 mi

Distance

Overall

4554

Men

2739

Division

597

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi405926135494733(Top 72%)2822(Top 78%)611(Top 79%)
4M4.00 mi2.00 mi3589+4702368+245481+683191(Top 49%)2160(Top 60%)446(Top 58%)
6M6.00 mi2.00 mi3296+2932215+153458+232921(Top 44%)2017(Top 56%)419(Top 54%)
8M8.00 mi2.00 mi3586-2902372-157499-414365(Top 66%)2768(Top 76%)597(Top 77%)
9.6M9.60 mi1.60 mi3276+3102211+161462+372007(Top 31%)1326(Top 37%)286(Top 37%)
10M10.00 mi0.40 mi3398-1222265-54472-104765(Top 72%)2836(Top 78%)611(Top 79%)
10.5M10.50 mi0.50 mi3410-122272-7473-14075(Top 62%)2565(Top 71%)553(Top 72%)
12M12.00 mi1.50 mi3677-2672395-123508-354733(Top 72%)2822(Top 78%)611(Top 79%)
Finish13.11 mi1.11 mi4258-5812663-268564-566420(Top 98%)3539(Top 98%)758(Top 98%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 72%
~flat
+5ft-3ft

Overall

4733

Males

2822

M30-34

613

2M→4M

2.0 - 4.0 mi

Top 49%
×4story building
+67ft-69ft

Overall

3191

Males

2160

M30-34

448

4M→6M

4.0 - 6.0 mi

Top 44%
×9story building
+123ft-9ft

Overall

2921

Males

2017

M30-34

420

6M→8M

6.0 - 8.0 mi

Top 66%
×12story building
+166ft-53ft

Overall

4365

Males

2768

M30-34

599

8M→9.6M

8.0 - 9.6 mi

Top 31%
×13story building
+68ft-193ft

Overall

2007

Males

1326

M30-34

287

9.6M→10M

9.6 - 10.0 mi

Top 72%
×2story building
+0ft-24ft

Overall

4765

Males

2836

M30-34

613

10M→10.5M

10.0 - 10.5 mi

Top 62%
×6story building
+1ft-73ft

Overall

4075

Males

2565

M30-34

555

10.5M→12M

10.5 - 12.0 mi

Top 72%
×21story building
+280ft-26ft

Overall

4733

Males

2822

M30-34

613

12M→Finish

12.0 - 13.1 mi

Top 98%
×7story building
+14ft-89ft

Overall

6420

Males

3539

M30-34

758

Passing Analysis

Category:
Athletes Passed
1220*
Passed By
1419
Net Change
-199
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4059
2M → 4M49121+470#4059#3589
4M → 6M30714+293#3589#3296
6M → 8M34*324-290#3296#3586
8M → 9.6M33121+310#3586#3276
9.6M → 10M15137-122#3276#3398
10M → 10.5M517-12#3398#3410
10.5M → 12M20287-267#3410#3677
12M → Finish17*598-581#3677#4258
TOTALS1220*1419-199

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

📊

Passing Visuals

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

Race Place Events

Race Place Events