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SF MARATHON 1ST HALF 2026

Chellene Lao

San Francisco, CA

Bib: 17071 F 29

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Top 45%
Division (F25-29)
#0 / 674
Top 49%
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
10:07/mi
20:14
→ flat
12 ft elev
4M
10:23/mi
41:00
↑ 67↓ 69
10 ft elev
6M
10:33/mi
1:02:06
↑ 1231.1%
126 ft elev
8M
12:12/mi
1:26:31
↑ 166↓ 531.1%
246 ft elev
9.6M
8:39/mi
1:40:21
↑ 68↓ 1931.5%
126 ft elev
10M
22:07/mi
1:49:11
↓ 241.1%
90 ft elev
10.5M
5:34/mi
1:51:58
↓ 732.7%
18 ft elev
12M
16:45/mi
2:17:06
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
10:56/mi
2:29:14
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:02:06
Pace10:21 /mi
2nd Half
Distance7.11 mi
Time1:27:08
Pace12:15 /mi
📊Positive Split: 40.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:03:3520:1410:0720:14
10:07
-
4M
4.00 mi07:24:2141:0010:1520:46
10:23
+0:16
6M
6.00 mi07:45:271:02:0610:2121:06
10:33
+0:10
8M
8.00 mi08:09:521:26:3110:4924:25
12:12
+1:39
9.6M
9.60 mi08:23:421:40:2110:2713:50
8:39
-3:33
10M
10.00 mi08:32:321:49:1110:558:50
22:07
+13:28
10.5M
10.50 mi08:35:191:51:5810:402:47
5:34
-16:33
12M
12.00 mi09:00:272:17:0611:2625:08
16:45
+11:11
Finish
13.11 mi09:12:352:29:1411:2312:08
10:56
-5:49

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

5:34 /mi

Average Pace

11:23 /mi

Slowest Pace

22:07 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47

2% of race

Time at Steady Pace

1:52:29

75% of race

Time at Slower Pace

33:58

23% of race

Average Pace: 11:23 /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.

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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 mi07:03:3520:1410:0720:14
10:07
#3220
4M
4.00 mi07:24:2141:0010:1520:46
10:23
#3291
6M
6.00 mi07:45:271:02:0610:2121:06
10:33
#3289
8M
8.00 mi08:09:521:26:3110:4924:25
12:12
#3711
9.6M
9.60 mi08:23:421:40:2110:2713:50
8:39
#3435
10M
10.00 mi08:32:321:49:1110:558:50
22:07
#3537
10.5M
10.50 mi08:35:191:51:5810:402:47
5:34
#3556
12M
12.00 mi09:00:272:17:0611:2625:08
16:45
#3792
Finish
13.11 mi09:12:352:29:1411:2312:08
10:56
#3774
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 68%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:37

Segment Time

12:55/mi

Pace

0.90 mi

Distance

Overall

4491

Women

1759

Division

428

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi322010552514706(Top 72%)1877(Top 64%)448(Top 66%)
4M4.00 mi2.00 mi3291-711078-23259-83347(Top 51%)1098(Top 37%)270(Top 40%)
6M6.00 mi2.00 mi3289+21069+92593389(Top 52%)1123(Top 38%)282(Top 42%)
8M8.00 mi2.00 mi3711-4221256-187312-534768(Top 73%)1782(Top 61%)420(Top 62%)
9.6M9.60 mi1.60 mi3435+2761138+118283+292296(Top 35%)790(Top 27%)205(Top 30%)
10M10.00 mi0.40 mi3537-1021188-50294-114584(Top 70%)1808(Top 62%)437(Top 65%)
10.5M10.50 mi0.50 mi3556-191198-10298-44544(Top 69%)1748(Top 60%)437(Top 65%)
12M12.00 mi1.50 mi3792-2361317-119331-334706(Top 72%)1877(Top 64%)448(Top 66%)
Finish13.11 mi1.11 mi3774+181312+5332-13950(Top 60%)1478(Top 50%)372(Top 55%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 72%
~flat
+5ft-3ft

Overall

4706

Females

1877

F25-29

448

2M→4M

2.0 - 4.0 mi

Top 51%
×4story building
+67ft-69ft

Overall

3347

Females

1098

F25-29

270

4M→6M

4.0 - 6.0 mi

Top 52%
×9story building
+123ft-9ft

Overall

3389

Females

1123

F25-29

282

6M→8M

6.0 - 8.0 mi

Top 73%
×12story building
+166ft-53ft

Overall

4768

Females

1782

F25-29

420

8M→9.6M

8.0 - 9.6 mi

Top 35%
×13story building
+68ft-193ft

Overall

2296

Females

790

F25-29

205

9.6M→10M

9.6 - 10.0 mi

Top 70%
×2story building
+0ft-24ft

Overall

4584

Females

1808

F25-29

437

10M→10.5M

10.0 - 10.5 mi

Top 69%
×6story building
+1ft-73ft

Overall

4544

Females

1748

F25-29

437

10.5M→12M

10.5 - 12.0 mi

Top 72%
×21story building
+280ft-26ft

Overall

4706

Females

1877

F25-29

448

12M→Finish

12.0 - 13.1 mi

Top 60%
×7story building
+14ft-89ft

Overall

3950

Females

1478

F25-29

372

Passing Analysis

Category:
Athletes Passed
681*
Passed By
1235
Net Change
-554
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3220
2M → 4M140211-71#3220#3291
4M → 6M118116+2#3291#3289
6M → 8M12*434-422#3289#3711
8M → 9.6M30731+276#3711#3435
9.6M → 10M15117-102#3435#3537
10M → 10.5M221-19#3537#3556
10.5M → 12M24*260-236#3556#3792
12M → Finish63*45+18#3792#3774
TOTALS681*1235-554

* 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