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SF MARATHON 2ND HALF 2026

Jackelyn Shen

Bib: 26063•F•Age: 29

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 48%
Gender (Female)
#0 / 1760
Top 36%
Division (F25-29)
#0 / 495
Top 37%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:21/mi
20:43
↑ 138↓ 680.7%
4M
9:40/mi
40:02
↑ 1631.4%
6M
12:01/mi
1:04:05
↑ 55↓ 830.3%
8M
7:39/mi
1:19:23
↑ 65↓ 1510.8%
10M
10:22/mi
1:40:07
↑ 61↓ 1741.1%
12M
10:29/mi
2:01:06
↑ 41↓ 530.1%
Finish· 13.11 mi
10:05/mi
2:12:17
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:04:05
Pace10:41 /mi
2nd Half
Distance7.11 mi
Time1:08:12
Pace9:36 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:07:2920:4310:2120:43
10:21
-
4M
4.00 mi09:26:4840:0210:0119:19
9:40
-0:41
6M
6.00 mi09:50:511:04:0510:4124:03
12:01
+2:21
8M
8.00 mi10:06:091:19:239:5515:18
7:39
-4:22
10M
10.00 mi10:26:531:40:0710:0120:44
10:22
+2:43
12M
12.00 mi10:47:522:01:0610:0620:59
10:29
+0:07
Finish
13.11 mi10:59:032:12:1710:0511:11
10:05
-0:24

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

7:39 /mi

Average Pace

10:05 /mi

Slowest Pace

12:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:37

26% of race

Time at Steady Pace

1:13:37

56% of race

Time at Slower Pace

24:03

18% of race

Average Pace: 10:05 /mi

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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 mi09:07:2920:4310:2120:43
10:21
#2313
4M
4.00 mi09:26:4840:0210:0119:19
9:40
#2201
6M
6.00 mi09:50:511:04:0510:4124:03
12:01
#2041
8M
8.00 mi10:06:091:19:239:5515:18
7:39
#2014
10M
10.00 mi10:26:531:40:0710:0120:44
10:22
#1960
12M
12.00 mi10:47:522:01:0610:0620:59
10:29
#1895
Finish
13.11 mi10:59:032:12:1710:0511:11
10:05
#1861
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi23138512411633(Top 43%)557(Top 32%)158(Top 32%)
4M4.00 mi2.00 mi2201+112798+53229+122117(Top 55%)759(Top 43%)224(Top 45%)
6M6.00 mi2.00 mi2041+160707+91201+281872(Top 49%)625(Top 36%)174(Top 35%)
8M8.00 mi2.00 mi2014+27694+13196+51932(Top 50%)657(Top 37%)191(Top 39%)
10M10.00 mi2.00 mi1960+54668+26194+21849(Top 48%)636(Top 36%)185(Top 37%)
12M12.00 mi2.00 mi1895+65649+19189+51633(Top 43%)557(Top 32%)158(Top 32%)
Finish13.11 mi1.11 mi1861+34634+15184+51617(Top 42%)557(Top 32%)163(Top 33%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 43%
×9story building
+138ft-68ft

Overall

1633

Females

557

F25-29

159

2M→4M

2.0 - 4.0 mi

Top 55%
×13story building
+163ft-19ft

Overall

2117

Females

759

F25-29

224

4M→6M

4.0 - 6.0 mi

Top 49%
×4story building
+55ft-83ft

Overall

1872

Females

625

F25-29

175

6M→8M

6.0 - 8.0 mi

Top 50%
×10story building
+65ft-151ft

Overall

1932

Females

657

F25-29

191

8M→10M

8.0 - 10.0 mi

Top 48%
×10story building
+61ft-174ft

Overall

1849

Females

636

F25-29

186

10M→12M

10.0 - 12.0 mi

Top 43%
×3story building
+41ft-53ft

Overall

1633

Females

557

F25-29

159

12M→Finish

12.0 - 13.1 mi

Top 42%
×1human
+6ft-6ft

Overall

1617

Females

557

F25-29

163

Passing Analysis

Category:
Athletes Passed
588*
Passed By
136
Net Change
+452
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2313
2M → 4M16856+112#2313#2201
4M → 6M17616+160#2201#2041
6M → 8M4922+27#2041#2014
8M → 10M79*25+54#2014#1960
10M → 12M7611+65#1960#1895
12M → Finish40*6+34#1895#1861
TOTALS588*136+452

* 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