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SF MARATHON 1ST HALF 2026

Jennifer Johnston

Arvada, CO

Bib: 17421 F 32

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F30-34)
#0 / 651
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:48/mi
21:37
→ flat
4M
11:09/mi
43:55
↑ 67↓ 69
6M
11:42/mi
1:07:20
↑ 123
8M
10:59/mi
1:29:17
↑ 166↓ 53
9.6M
10:59/mi
1:46:51
↑ 68↓ 193
10M
24:32/mi
1:56:39
↓ 24
10.5M
5:42/mi
1:59:30
↓ 73
12M
15:48/mi
2:23:12
↑ 280
Finish· 13.11 mi
11:35/mi
2:36:03
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:07:2011:13 /mi⚡ faster
2nd Half
1:28:4312:29 /mi+31.8%
Positive split — 31.8% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
21:3710:482.00 mi21:37
10:48
-
4M
43:5510:592.00 mi22:18
11:09
+0:21
6M
1:07:2011:132.00 mi23:25
11:42
+0:33
8M
1:29:1711:102.00 mi21:57
10:59
-0:43
9.6M
1:46:5111:081.60 mi17:34
10:59
0:00
10M
1:56:3911:400.40 mi9:48
24:32
+13:33
10.5M
1:59:3011:230.50 mi2:51
5:42
-18:50
12M
2:23:1211:561.50 mi23:42
15:48
+10:06
Finish(13.11 mi)
2:36:0311:541.11 mi12:51
11:35
-4:13
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

5:42 /mi

Average Pace

11:54 /mi

Slowest Pace

24:32 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:51

2% of race

Time at Steady Pace

1:59:42

77% of race

Time at Slower Pace

33:30

21% of race

Average Pace: 11:54 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower
Featured Segment

Garmin Challenge

Top 81%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:39

Segment Time

14:04/mi

Pace

0.90 mi

Distance

Overall

5331

Women

2214

Division

518

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi4393160437141051556353
4M2.00 mi4363+301593+11360+1144341639377
6M2.00 mi4533-1701680-87390-3047511793426
8M2.00 mi4171+3621470+210344+4635191171274
9.6M1.60 mi4337-1661585-115376-3250112072475
10M0.40 mi4485-1481672-87395-1954822312530
10.5M0.50 mi4495-101681-9396-148411914437
12M1.50 mi4405+901642+39386+1041051556353
Finish(13.11 mi)1.11 mi4401+41645-3393-745861831423

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 62%
~flat
+5ft-3ft

Overall

4105

Females

1556

F30-34

355

2M→4M

2.0 - 4.0 mi

Top 67%
×4story building
+67ft-69ft

Overall

4434

Females

1639

F30-34

380

4M→6M

4.0 - 6.0 mi

Top 72%
×9story building
+123ft-9ft

Overall

4751

Females

1793

F30-34

429

6M→8M

6.0 - 8.0 mi

Top 54%
×12story building
+166ft-53ft

Overall

3519

Females

1171

F30-34

276

8M→9.6M

8.0 - 9.6 mi

Top 76%
×13story building
+68ft-193ft

Overall

5011

Females

2072

F30-34

477

9.6M→10M

9.6 - 10.0 mi

Top 83%
×2story building
+0ft-24ft

Overall

5482

Females

2312

F30-34

532

10M→10.5M

10.0 - 10.5 mi

Top 74%
×6story building
+1ft-73ft

Overall

4841

Females

1914

F30-34

439

10.5M→12M

10.5 - 12.0 mi

Top 62%
×21story building
+280ft-26ft

Overall

4105

Females

1556

F30-34

355

12M→Finish

12.0 - 13.1 mi

Top 70%
×7story building
+14ft-89ft

Overall

4586

Females

1831

F30-34

423

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#4393
2M → 4M
171201+30
#4393 → #4363
4M → 6M
24979*-170
#4363 → #4533
6M → 8M
36398*+362
#4533 → #4171
8M → 9.6M
21953-166
#4171 → #4337
9.6M → 10M
16214-148
#4337 → #4485
10M → 10.5M
199-10
#4485 → #4495
10.5M → 12M
64154*+90
#4495 → #4405
12M → Finish
5155*+4
#4405 → #4401
TOTALS
971963*-8
#4393 → #4401

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

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Questions or issues regarding timing data?

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events