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SF MARATHON 1ST HALF 2026

Tiffany Shiau

Bib: 15827•F•Age: 31

Palo Alto, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 30%
Gender (Female)
#0 / 2930
Top 19%
Division (F30-34)
#0 / 651
Top 20%
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
9:30/mi
38:00
↑ 67↓ 69
6M
9:36/mi
57:12
↑ 1231.1%
8M
10:35/mi
1:18:22
↑ 166↓ 531.1%
9.6M
7:26/mi
1:30:15
↑ 68↓ 1931.5%
10M
17:19/mi
1:37:10
↓ 241.1%
10.5M
4:36/mi
1:39:28
↓ 732.7%
12M
13:13/mi
1:59:18
↑ 2803.2%
Finish· 13.11 mi
9:16/mi
2:09:35
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time57:12
Pace9:32 /mi
2nd Half
Distance7.11 mi
Time1:12:23
Pace10:11 /mi
📊Positive Split: 26.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:57:2519:009:3019:00
9:30
-
4M
4.00 mi07:16:2538:009:3019:00
9:30
0:00
6M
6.00 mi07:35:3757:129:3219:12
9:36
+0:06
8M
8.00 mi07:56:471:18:229:4821:10
10:35
+0:59
9.6M
9.60 mi08:08:401:30:159:2411:53
7:26
-3:09
10M
10.00 mi08:15:351:37:109:436:55
17:19
+9:53
10.5M
10.50 mi08:17:531:39:289:282:18
4:36
-12:43
12M
12.00 mi08:37:431:59:189:5719:50
13:13
+8:37
Finish
13.11 mi08:48:002:09:359:5310:17
9:16
-3:57

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

4:36 /mi

Average Pace

9:53 /mi

Slowest Pace

17:19 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:11

11% of race

Time at Steady Pace

1:28:39

68% of race

Time at Slower Pace

26:45

21% of race

Average Pace: 9:53 /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 mi06:57:2519:009:3019:00
9:30
#2254
4M
4.00 mi07:16:2538:009:3019:00
9:30
#2142
6M
6.00 mi07:35:3757:129:3219:12
9:36
#2138
8M
8.00 mi07:56:471:18:229:4821:10
10:35
#2357
9.6M
9.60 mi08:08:401:30:159:2411:53
7:26
#2050
10M
10.00 mi08:15:351:37:109:436:55
17:19
#2029
10.5M
10.50 mi08:17:531:39:289:282:18
4:36
#2028
12M
12.00 mi08:37:431:59:189:5719:50
13:13
#2018
Finish
13.11 mi08:48:002:09:359:5310:17
9:16
#1995
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 30%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:13

Segment Time

10:15/mi

Pace

0.90 mi

Distance

Overall

1941

Women

535

Division

117

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi22546301372127(Top 32%)626(Top 21%)134(Top 21%)
4M4.00 mi2.00 mi2142+112581+49125+122109(Top 32%)557(Top 19%)125(Top 19%)
6M6.00 mi2.00 mi2138+4573+8126-12167(Top 33%)602(Top 21%)137(Top 21%)
8M8.00 mi2.00 mi2357-219646-73148-223089(Top 47%)960(Top 33%)223(Top 34%)
9.6M9.60 mi1.60 mi2050+307548+98124+241003(Top 15%)309(Top 11%)64(Top 10%)
10M10.00 mi0.40 mi2029+21547+1125-11979(Top 30%)557(Top 19%)114(Top 18%)
10.5M10.50 mi0.50 mi2028+1545+2124+12086(Top 32%)582(Top 20%)136(Top 21%)
12M12.00 mi1.50 mi2018+10551-6127-32127(Top 32%)626(Top 21%)134(Top 21%)
Finish13.11 mi1.11 mi1995+23546+5128-11977(Top 30%)553(Top 19%)131(Top 20%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 32%
~flat
+5ft-3ft

Overall

2127

Females

626

F30-34

135

2M→4M

2.0 - 4.0 mi

Top 32%
×4story building
+67ft-69ft

Overall

2109

Females

557

F30-34

126

4M→6M

4.0 - 6.0 mi

Top 33%
×9story building
+123ft-9ft

Overall

2167

Females

602

F30-34

138

6M→8M

6.0 - 8.0 mi

Top 47%
×12story building
+166ft-53ft

Overall

3089

Females

960

F30-34

225

8M→9.6M

8.0 - 9.6 mi

Top 15%
×13story building
+68ft-193ft

Overall

1003

Females

309

F30-34

65

9.6M→10M

9.6 - 10.0 mi

Top 30%
×2story building
+0ft-24ft

Overall

1979

Females

557

F30-34

115

10M→10.5M

10.0 - 10.5 mi

Top 32%
×6story building
+1ft-73ft

Overall

2086

Females

582

F30-34

136

10.5M→12M

10.5 - 12.0 mi

Top 32%
×21story building
+280ft-26ft

Overall

2127

Females

626

F30-34

135

12M→Finish

12.0 - 13.1 mi

Top 30%
×7story building
+14ft-89ft

Overall

1977

Females

553

F30-34

131

Passing Analysis

Category:
Athletes Passed
784*
Passed By
525
Net Change
+259
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2254
2M → 4M17967+112#2254#2142
4M → 6M8177+4#2142#2138
6M → 8M47*266-219#2138#2357
8M → 9.6M31710+307#2357#2050
9.6M → 10M3514+21#2050#2029
10M → 10.5M98+1#2029#2028
10.5M → 12M6151+10#2028#2018
12M → Finish55*32+23#2018#1995
TOTALS784*525+259

* 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

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