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SF MARATHON 1ST HALF 2026

Katherine Jackson

Bib: 15756•F•Age: 20

Los Altos Hills, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
F20-29
#0 / 353
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
10:49/mi
21:39
→ flat
4M
11:29/mi
44:36
↑ 67↓ 69
6M
13:47/mi
1:12:10
↑ 1231.1%
8M
12:52/mi
1:37:55
↑ 166↓ 531.1%
9.6M
9:53/mi
1:53:44
↑ 68↓ 1931.5%
10M
23:32/mi
2:03:08
↓ 241.1%
10.5M
6:20/mi
2:06:18
↓ 732.7%
12M
17:08/mi
2:32:00
↑ 2803.2%
Finish· 13.11 mi
12:51/mi
2:46:15
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:12:10
Pace12:02 /mi
2nd Half
Distance7.11 mi
Time1:34:05
Pace13:14 /mi
📊Positive Split: 30.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:07:5621:3910:4921:39
10:49
-
4M
4.00 mi07:30:5344:3611:0922:57
11:29
+0:40
6M
6.00 mi07:58:271:12:1012:0227:34
13:47
+2:18
8M
8.00 mi08:24:121:37:5512:1425:45
12:52
-0:55
9.6M
9.60 mi08:40:011:53:4411:5115:49
9:53
-2:59
10M
10.00 mi08:49:252:03:0812:199:24
23:32
+13:39
10.5M
10.50 mi08:52:352:06:1812:023:10
6:20
-17:12
12M
12.00 mi09:18:172:32:0012:4025:42
17:08
+10:48
Finish
13.11 mi09:32:322:46:1512:4114:15
12:51
-4:17

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

6:20 /mi

Average Pace

12:41 /mi

Slowest Pace

23:32 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:59

11% of race

Time at Steady Pace

1:52:10

67% of race

Time at Slower Pace

35:06

21% of race

Average Pace: 12:41 /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 mi07:07:5621:3910:4921:39
10:49
#4439
4M
4.00 mi07:30:5344:3611:0922:57
11:29
#4650
6M
6.00 mi07:58:271:12:1012:0227:34
13:47
#5468
8M
8.00 mi08:24:121:37:5512:1425:45
12:52
#5452
9.6M
9.60 mi08:40:011:53:4411:5115:49
9:53
#5256
10M
10.00 mi08:49:252:03:0812:199:24
23:32
#5265
10.5M
10.50 mi08:52:352:06:1812:023:10
6:20
#5270
12M
12.00 mi09:18:172:32:0012:4025:42
17:08
#5222
Finish
13.11 mi09:32:322:46:1512:4114:15
12:51
#5219
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 80%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:34

Segment Time

13:58/mi

Pace

0.90 mi

Distance

Overall

5277

Women

2181

Division

282

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2M2.00 mi2.00 mi443916272104930(Top 75%)2019(Top 69%)267(Top 76%)
4M4.00 mi2.00 mi4650-2111740-113226-164842(Top 74%)1877(Top 64%)246(Top 70%)
6M6.00 mi2.00 mi5468-8182204-464293-676203(Top 94%)2669(Top 91%)340(Top 96%)
8M8.00 mi2.00 mi5452+162187+17286+75336(Top 81%)2126(Top 73%)269(Top 76%)
9.6M9.60 mi1.60 mi5256+1962083+104274+123864(Top 59%)1516(Top 52%)198(Top 56%)
10M10.00 mi0.40 mi5265-92090-7275-15184(Top 79%)2130(Top 73%)270(Top 76%)
10.5M10.50 mi0.50 mi5270-52094-4276-15726(Top 87%)2431(Top 83%)315(Top 89%)
12M12.00 mi1.50 mi5222+482084+10275+14930(Top 75%)2019(Top 69%)267(Top 76%)
Finish13.11 mi1.11 mi5219+32098-14283-85484(Top 83%)2343(Top 80%)302(Top 86%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 75%
~flat
+5ft-3ft

Overall

4930

Females

2019

F20-24

267

2M→4M

2.0 - 4.0 mi

Top 74%
×4story building
+67ft-69ft

Overall

4842

Females

1877

F20-24

247

4M→6M

4.0 - 6.0 mi

Top 94%
×9story building
+123ft-9ft

Overall

6203

Females

2669

F20-24

341

6M→8M

6.0 - 8.0 mi

Top 81%
×12story building
+166ft-53ft

Overall

5336

Females

2126

F20-24

269

8M→9.6M

8.0 - 9.6 mi

Top 59%
×13story building
+68ft-193ft

Overall

3864

Females

1516

F20-24

198

9.6M→10M

9.6 - 10.0 mi

Top 79%
×2story building
+0ft-24ft

Overall

5184

Females

2130

F20-24

270

10M→10.5M

10.0 - 10.5 mi

Top 87%
×6story building
+1ft-73ft

Overall

5726

Females

2431

F20-24

315

10.5M→12M

10.5 - 12.0 mi

Top 75%
×21story building
+280ft-26ft

Overall

4930

Females

2019

F20-24

267

12M→Finish

12.0 - 13.1 mi

Top 83%
×7story building
+14ft-89ft

Overall

5484

Females

2343

F20-24

302

Passing Analysis

Category:
Athletes Passed
717*
Passed By
1497
Net Change
-780
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4439
2M → 4M115326-211#4439#4650
4M → 6M18*836-818#4650#5468
6M → 8M118*102+16#5468#5452
8M → 9.6M22933+196#5452#5256
9.6M → 10M3746-9#5256#5265
10M → 10.5M1520-5#5265#5270
10.5M → 12M128*80+48#5270#5222
12M → Finish57*54+3#5222#5219
TOTALS717*1497-780

* 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