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SF MARATHON 1ST HALF 2026

Serena Yang-Loudin

Bib: 12177•F•Age: 39

Orinda, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 49%
Gender (Female)
#0 / 2930
Top 37%
Division (F35-39)
#0 / 388
Top 37%
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
10:46/mi
21:32
→ flat
4M
11:41/mi
44:54
↑ 67↓ 69
6M
10:26/mi
1:05:46
↑ 1231.1%
8M
10:11/mi
1:26:08
↑ 166↓ 531.1%
9.6M
10:11/mi
1:42:26
↑ 68↓ 1931.5%
10M
18:34/mi
1:49:51
↓ 241.1%
10.5M
4:42/mi
1:52:12
↓ 732.7%
12M
13:53/mi
2:13:01
↑ 2803.2%
Finish· 13.11 mi
9:10/mi
2:23:11
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:05:46
Pace10:58 /mi
2nd Half
Distance7.11 mi
Time1:17:25
Pace10:53 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:05:0121:3210:4621:32
10:46
-
4M
4.00 mi07:28:2344:5411:1423:22
11:41
+0:55
6M
6.00 mi07:49:151:05:4610:5820:52
10:26
-1:15
8M
8.00 mi08:09:371:26:0810:4620:22
10:11
-0:15
9.6M
9.60 mi08:25:551:42:2610:4016:18
10:11
0:00
10M
10.00 mi08:33:201:49:5110:597:25
18:34
+8:23
10.5M
10.50 mi08:35:411:52:1210:412:21
4:42
-13:52
12M
12.00 mi08:56:302:13:0111:0520:49
13:53
+9:11
Finish
13.11 mi09:06:402:23:1110:5510:10
9:10
-4:43

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

4:42 /mi

Average Pace

10:55 /mi

Slowest Pace

18:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21

2% of race

Time at Steady Pace

1:52:36

79% of race

Time at Slower Pace

28:14

20% of race

Average Pace: 10:55 /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 mi07:05:0121:3210:4621:32
10:46
#4320
4M
4.00 mi07:28:2344:5411:1423:22
11:41
#4768
6M
6.00 mi07:49:151:05:4610:5820:52
10:26
#4142
8M
8.00 mi08:09:371:26:0810:4620:22
10:11
#3645
9.6M
9.60 mi08:25:551:42:2610:4016:18
10:11
#3714
10M
10.00 mi08:33:201:49:5110:597:25
18:34
#3618
10.5M
10.50 mi08:35:411:52:1210:412:21
4:42
#3584
12M
12.00 mi08:56:302:13:0111:0520:49
13:53
#3392
Finish
13.11 mi09:06:402:23:1110:5510:10
9:10
#3254
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 39%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:46

Segment Time

10:51/mi

Pace

0.90 mi

Distance

Overall

2579

Women

794

Division

104

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
2M2.00 mi2.00 mi432015681952632(Top 40%)843(Top 29%)112(Top 29%)
4M4.00 mi2.00 mi4768-4481805-237225-305102(Top 78%)2012(Top 69%)251(Top 65%)
6M6.00 mi2.00 mi4142+6261474+331186+393205(Top 49%)1028(Top 35%)142(Top 37%)
8M8.00 mi2.00 mi3645+4971232+242161+252608(Top 40%)735(Top 25%)103(Top 27%)
9.6M9.60 mi1.60 mi3714-691274-42165-44231(Top 64%)1679(Top 57%)211(Top 54%)
10M10.00 mi0.40 mi3618+961229+45160+52740(Top 42%)887(Top 30%)116(Top 30%)
10.5M10.50 mi0.50 mi3584+341209+20159+12397(Top 36%)716(Top 24%)99(Top 26%)
12M12.00 mi1.50 mi3392+1921136+73151+82632(Top 40%)843(Top 29%)112(Top 29%)
Finish13.11 mi1.11 mi3254+1381071+65145+61845(Top 28%)502(Top 17%)63(Top 16%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 40%
~flat
+5ft-3ft

Overall

2632

Females

843

F35-39

112

2M→4M

2.0 - 4.0 mi

Top 78%
×4story building
+67ft-69ft

Overall

5102

Females

2012

F35-39

252

4M→6M

4.0 - 6.0 mi

Top 49%
×9story building
+123ft-9ft

Overall

3205

Females

1028

F35-39

142

6M→8M

6.0 - 8.0 mi

Top 40%
×12story building
+166ft-53ft

Overall

2608

Females

735

F35-39

103

8M→9.6M

8.0 - 9.6 mi

Top 64%
×13story building
+68ft-193ft

Overall

4231

Females

1679

F35-39

211

9.6M→10M

9.6 - 10.0 mi

Top 42%
×2story building
+0ft-24ft

Overall

2740

Females

887

F35-39

116

10M→10.5M

10.0 - 10.5 mi

Top 36%
×6story building
+1ft-73ft

Overall

2397

Females

716

F35-39

99

10.5M→12M

10.5 - 12.0 mi

Top 40%
×21story building
+280ft-26ft

Overall

2632

Females

843

F35-39

112

12M→Finish

12.0 - 13.1 mi

Top 28%
×7story building
+14ft-89ft

Overall

1845

Females

502

F35-39

63

Passing Analysis

Category:
Athletes Passed
1775*
Passed By
709
Net Change
+1066
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4320
2M → 4M63511-448#4320#4768
4M → 6M633*7+626#4768#4142
6M → 8M505*8+497#4142#3645
8M → 9.6M79148-69#3645#3714
9.6M → 10M1026+96#3714#3618
10M → 10.5M362+34#3618#3584
10.5M → 12M216*24+192#3584#3392
12M → Finish141*3+138#3392#3254
TOTALS1775*709+1066

* 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