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SF MARATHON 1ST HALF 2026

Simone Aldern

San Diego, CA

Bib: 15590 F 29

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Top 37%
Division (F25-29)
#0 / 674
Top 41%
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
10:19/mi
20:38
→ flat
4M
11:03/mi
42:44
↑ 67↓ 69
6M
11:03/mi
1:04:50
↑ 123
8M
11:59/mi
1:28:48
↑ 166↓ 53
9.6M
8:22/mi
1:42:11
↑ 68↓ 193
10.26M
10:56/mi
1:49:24
↓ 114
10.5M
10:55/mi
1:52:01
→ flat
12M
14:10/mi
2:13:16
↑ 280
Finish· 13.11 mi
9:25/mi
2:23:43
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:04:5010:48 /mi⚡ faster
2nd Half
1:18:5311:06 /mi+21.7%
Positive split — 21.7% 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
20:3810:192.00 mi20:38
10:19
-
4M
42:4410:412.00 mi22:06
11:03
+0:44
6M
1:04:5010:482.00 mi22:06
11:03
0:00
8M
1:28:4811:062.00 mi23:58
11:59
+0:56
9.6M
1:42:1110:391.60 mi13:23
8:22
-3:37
10.26M
1:49:2410:400.66 mi7:13
10:56
+2:34
10.5M
1:52:0110:400.24 mi2:37
10:55
-0:01
12M
2:13:1611:061.50 mi21:15
14:10
+3:15
Finish(13.11 mi)
2:23:4310:581.11 mi10:27
9:25
-4:45
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

8:22 /mi

Average Pace

10:58 /mi

Slowest Pace

14:10 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

23:50

17% of race

Time at Steady Pace

1:14:40

52% of race

Time at Slower Pace

45:13

31% of race

Average Pace: 10:58 /mi

Loading chart...
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 40%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:50

Segment Time

10:56/mi

Pace

0.90 mi

Distance

Overall

2649

Women

833

Division

210

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi358612182952887965254
4M2.00 mi3956-3701381-163343-4842721553388
6M2.00 mi3928+281364+17338+539591394346
8M2.00 mi4093-1651430-66355-1745521667393
9.6M1.60 mi3694+3991260+170318+371942651164
10.26M0.66 mi3567+1271204+56300+182423735182
10.5M0.24 mi3565+21201+330037661336326
12M1.50 mi3417+1481147+54284+162887965254
Finish(13.11 mi)1.11 mi3297+1201092+55273+112165630172

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 44%
~flat
+5ft-3ft

Overall

2887

Females

965

F25-29

254

2M→4M

2.0 - 4.0 mi

Top 65%
×4story building
+67ft-69ft

Overall

4272

Females

1553

F25-29

388

4M→6M

4.0 - 6.0 mi

Top 60%
×9story building
+123ft-9ft

Overall

3959

Females

1394

F25-29

346

6M→8M

6.0 - 8.0 mi

Top 69%
×12story building
+166ft-53ft

Overall

4552

Females

1667

F25-29

393

8M→9.6M

8.0 - 9.6 mi

Top 30%
×13story building
+68ft-193ft

Overall

1942

Females

651

F25-29

164

9.6M→10.26M

9.6 - 10.3 mi

Top 37%
×9story building
+0ft-114ft

Overall

2423

Females

735

F25-29

182

10.26M→10.5M

10.3 - 10.5 mi

Top 57%
~flat
+1ft-0ft

Overall

3766

Females

1336

F25-29

326

10.5M→12M

10.5 - 12.0 mi

Top 44%
×21story building
+280ft-26ft

Overall

2887

Females

965

F25-29

254

12M→Finish

12.0 - 13.1 mi

Top 33%
×7story building
+14ft-89ft

Overall

2165

Females

630

F25-29

172

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#3586
2M → 4M
44272-370
#3586 → #3956
4M → 6M
106134*+28
#3956 → #3928
6M → 8M
25085*-165
#3928 → #4093
8M → 9.6M
11410+399
#4093 → #3694
9.6M → 10.26M
2129+127
#3694 → #3567
10.26M → 10.5M
68+2
#3567 → #3565
10.5M → 12M
30178*+148
#3565 → #3417
12M → Finish
3123*+120
#3417 → #3297
TOTALS
8501139*+289
#3586 → #3297

* 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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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

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Race Place Events