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SF MARATHON 1ST HALF 2026

Siobhan Reardon

Bib: 16438•F•Age: 27

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 37%
Gender (Female)
#0 / 2930
Top 24%
Division (F25-29)
#0 / 674
Top 27%
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
9:30/mi
19:00
→ flat
4M
10:05/mi
39:10
↑ 67↓ 69
6M
10:08/mi
59:26
↑ 1231.1%
8M
9:44/mi
1:18:53
↑ 166↓ 531.1%
9.6M
9:44/mi
1:34:27
↑ 68↓ 1931.5%
10M
18:11/mi
1:41:43
↓ 241.1%
10.5M
5:12/mi
1:44:19
↓ 732.7%
12M
13:04/mi
2:03:55
↑ 2803.2%
Finish· 13.11 mi
9:32/mi
2:14:29
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time59:26
Pace9:54 /mi
2nd Half
Distance7.11 mi
Time1:15:03
Pace10:33 /mi
📊Positive Split: 26.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:59:0719:009:3019:00
9:30
-
4M
4.00 mi07:19:1739:109:4820:10
10:05
+0:35
6M
6.00 mi07:39:3359:269:5420:16
10:08
+0:03
8M
8.00 mi07:59:001:18:539:5219:27
9:44
-0:24
9.6M
9.60 mi08:14:341:34:279:5015:34
9:44
0:00
10M
10.00 mi08:21:501:41:4310:107:16
18:11
+8:27
10.5M
10.50 mi08:24:261:44:199:562:36
5:12
-12:59
12M
12.00 mi08:44:022:03:5510:2019:36
13:04
+7:52
Finish
13.11 mi08:54:362:14:2910:1610:34
9:32
-3:32

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

5:12 /mi

Average Pace

10:16 /mi

Slowest Pace

18:11 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36

2% of race

Time at Steady Pace

1:45:01

78% of race

Time at Slower Pace

26:52

20% of race

Average Pace: 10:15 /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 mi06:59:0719:009:3019:00
9:30
#2257
4M
4.00 mi07:19:1739:109:4820:10
10:05
#2556
6M
6.00 mi07:39:3359:269:5420:16
10:08
#2625
8M
8.00 mi07:59:001:18:539:5219:27
9:44
#2450
9.6M
9.60 mi08:14:341:34:279:5015:34
9:44
#2612
10M
10.00 mi08:21:501:41:4310:107:16
18:11
#2573
10.5M
10.50 mi08:24:261:44:199:562:36
5:12
#2595
12M
12.00 mi08:44:022:03:5510:2019:36
13:04
#2446
Finish
13.11 mi08:54:362:14:2910:1610:34
9:32
#2419
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 41%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:52

Segment Time

10:58/mi

Pace

0.90 mi

Distance

Overall

2669

Women

838

Division

212

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi22576311501973(Top 30%)570(Top 19%)150(Top 22%)
4M4.00 mi2.00 mi2556-299757-126183-332925(Top 44%)908(Top 31%)218(Top 32%)
6M6.00 mi2.00 mi2625-69776-19189-62824(Top 43%)848(Top 29%)210(Top 31%)
8M8.00 mi2.00 mi2450+175684+92160+292042(Top 31%)516(Top 18%)119(Top 18%)
9.6M9.60 mi1.60 mi2612-162778-94191-313642(Top 55%)1405(Top 48%)343(Top 51%)
10M10.00 mi0.40 mi2573+39770+8186+52499(Top 38%)771(Top 26%)192(Top 28%)
10.5M10.50 mi0.50 mi2595-22777-7189-33623(Top 55%)1267(Top 43%)310(Top 46%)
12M12.00 mi1.50 mi2446+149723+54176+131973(Top 30%)570(Top 19%)150(Top 22%)
Finish13.11 mi1.11 mi2419+27711+12180-42293(Top 35%)698(Top 24%)189(Top 28%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 30%
~flat
+5ft-3ft

Overall

1973

Females

570

F25-29

150

2M→4M

2.0 - 4.0 mi

Top 44%
×4story building
+67ft-69ft

Overall

2925

Females

908

F25-29

218

4M→6M

4.0 - 6.0 mi

Top 43%
×9story building
+123ft-9ft

Overall

2824

Females

848

F25-29

210

6M→8M

6.0 - 8.0 mi

Top 31%
×12story building
+166ft-53ft

Overall

2042

Females

516

F25-29

119

8M→9.6M

8.0 - 9.6 mi

Top 55%
×13story building
+68ft-193ft

Overall

3642

Females

1405

F25-29

343

9.6M→10M

9.6 - 10.0 mi

Top 38%
×2story building
+0ft-24ft

Overall

2499

Females

771

F25-29

192

10M→10.5M

10.0 - 10.5 mi

Top 55%
×6story building
+1ft-73ft

Overall

3623

Females

1267

F25-29

310

10.5M→12M

10.5 - 12.0 mi

Top 30%
×21story building
+280ft-26ft

Overall

1973

Females

570

F25-29

150

12M→Finish

12.0 - 13.1 mi

Top 35%
×7story building
+14ft-89ft

Overall

2293

Females

698

F25-29

189

Passing Analysis

Category:
Athletes Passed
639*
Passed By
801
Net Change
-162
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2257
2M → 4M47346-299#2257#2556
4M → 6M59128-69#2556#2625
6M → 8M226*51+175#2625#2450
8M → 9.6M28190-162#2450#2612
9.6M → 10M6021+39#2612#2573
10M → 10.5M123-22#2573#2595
10.5M → 12M16718+149#2595#2446
12M → Finish51*24+27#2446#2419
TOTALS639*801-162

* 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