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SF MARATHON 2ND HALF 2026

Jenna Williamson

Bib: 23845•F•Age: 27

SF, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Division (F25-29)
#0 / 495
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
10:14/mi
20:29
↑ 138↓ 680.7%
4M
9:43/mi
39:55
↑ 1631.4%
6M
13:01/mi
1:05:58
↑ 55↓ 830.3%
8M
8:07/mi
1:22:13
↑ 65↓ 1510.8%
10M
11:33/mi
1:45:19
↑ 61↓ 1741.1%
12M
13:20/mi
2:12:00
↑ 41↓ 530.1%
Finish· 13.11 mi
12:08/mi
2:25:27
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:05:58
Pace11:00 /mi
2nd Half
Distance7.11 mi
Time1:19:29
Pace11:11 /mi
📊Positive Split: 20.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:04:3920:2910:1420:29
10:14
-
4M
4.00 mi09:24:0539:559:5919:26
9:43
-0:31
6M
6.00 mi09:50:081:05:5811:0026:03
13:01
+3:18
8M
8.00 mi10:06:231:22:1310:1716:15
8:07
-4:54
10M
10.00 mi10:29:291:45:1910:3223:06
11:33
+3:26
12M
12.00 mi10:56:102:12:0011:0026:41
13:20
+1:47
Finish
13.11 mi11:09:372:25:2711:0613:27
12:08
-1:12

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

8:07 /mi

Average Pace

11:06 /mi

Slowest Pace

13:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:10

39% of race

Time at Steady Pace

36:33

25% of race

Time at Slower Pace

52:44

36% of race

Average Pace: 11:06 /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 mi09:04:3920:2910:1420:29
10:14
#2221
4M
4.00 mi09:24:0539:559:5919:26
9:43
#2178
6M
6.00 mi09:50:081:05:5811:0026:03
13:01
#2259
8M
8.00 mi10:06:231:22:1310:1716:15
8:07
#2269
10M
10.00 mi10:29:291:45:1910:3223:06
11:33
#2349
12M
12.00 mi10:56:102:12:0011:0026:41
13:20
#2514
Finish
13.11 mi11:09:372:25:2711:0613:27
12:08
#2534
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi22218012233000(Top 78%)1273(Top 72%)371(Top 75%)
4M4.00 mi2.00 mi2178+43784+17226-32162(Top 56%)787(Top 45%)234(Top 47%)
6M6.00 mi2.00 mi2259-81819-35245-192474(Top 64%)942(Top 54%)274(Top 55%)
8M8.00 mi2.00 mi2269-10822-3244+12338(Top 61%)860(Top 49%)257(Top 52%)
10M10.00 mi2.00 mi2349-80868-46262-182519(Top 66%)989(Top 56%)294(Top 59%)
12M12.00 mi2.00 mi2514-165970-102287-253000(Top 78%)1273(Top 72%)371(Top 75%)
Finish13.11 mi1.11 mi2534-20988-18292-52736(Top 71%)1140(Top 65%)336(Top 68%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 78%
×9story building
+138ft-68ft

Overall

3000

Females

1273

F25-29

372

2M→4M

2.0 - 4.0 mi

Top 56%
×13story building
+163ft-19ft

Overall

2162

Females

787

F25-29

234

4M→6M

4.0 - 6.0 mi

Top 64%
×4story building
+55ft-83ft

Overall

2474

Females

942

F25-29

275

6M→8M

6.0 - 8.0 mi

Top 61%
×10story building
+65ft-151ft

Overall

2338

Females

860

F25-29

258

8M→10M

8.0 - 10.0 mi

Top 66%
×10story building
+61ft-174ft

Overall

2519

Females

989

F25-29

295

10M→12M

10.0 - 12.0 mi

Top 78%
×3story building
+41ft-53ft

Overall

3000

Females

1273

F25-29

372

12M→Finish

12.0 - 13.1 mi

Top 71%
×1human
+6ft-6ft

Overall

2736

Females

1140

F25-29

336

Passing Analysis

Category:
Athletes Passed
242*
Passed By
555
Net Change
-313
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2221
2M → 4M13693+43#2221#2178
4M → 6M27108-81#2178#2259
6M → 8M3444-10#2259#2269
8M → 10M20*100-80#2269#2349
10M → 12M8173-165#2349#2514
12M → Finish17*37-20#2514#2534
TOTALS242*555-313

* 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