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SF MARATHON 1ST HALF 2026

Amber Lai

Bib: 17996•F•Age: 23

San Jose, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
F20-29
#0 / 353
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
11:32/mi
23:04
→ flat
4M
11:24/mi
45:52
↑ 67↓ 69
6M
11:12/mi
1:08:16
↑ 1231.1%
8M
12:33/mi
1:33:22
↑ 166↓ 531.1%
9.6M
8:37/mi
1:47:09
↑ 68↓ 1931.5%
10M
20:29/mi
1:55:20
↓ 241.1%
10.5M
5:22/mi
1:58:01
↓ 732.7%
12M
15:34/mi
2:21:22
↑ 2803.2%
Finish· 13.11 mi
11:33/mi
2:34:11
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:08:16
Pace11:23 /mi
2nd Half
Distance7.11 mi
Time1:25:55
Pace12:05 /mi
📊Positive Split: 25.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:12:3623:0411:3223:04
11:32
-
4M
4.00 mi07:35:2445:5211:2822:48
11:24
-0:08
6M
6.00 mi07:57:481:08:1611:2322:24
11:12
-0:12
8M
8.00 mi08:22:541:33:2211:4025:06
12:33
+1:21
9.6M
9.60 mi08:36:411:47:0911:1013:47
8:37
-3:56
10M
10.00 mi08:44:521:55:2011:328:11
20:29
+11:52
10.5M
10.50 mi08:47:331:58:0111:142:41
5:22
-15:07
12M
12.00 mi09:10:542:21:2211:4723:21
15:34
+10:12
Finish
13.11 mi09:23:432:34:1111:4612:49
11:33
-4:01

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

5:22 /mi

Average Pace

11:46 /mi

Slowest Pace

20:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:28

11% of race

Time at Steady Pace

1:46:11

69% of race

Time at Slower Pace

31:32

20% of race

Average Pace: 11:46 /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 mi07:12:3623:0411:3223:04
11:32
#5449
4M
4.00 mi07:35:2445:5211:2822:48
11:24
#5121
6M
6.00 mi07:57:481:08:1611:2322:24
11:12
#4736
8M
8.00 mi08:22:541:33:2211:4025:06
12:33
#4861
9.6M
9.60 mi08:36:411:47:0911:1013:47
8:37
#4385
10M
10.00 mi08:44:521:55:2011:328:11
20:29
#4303
10.5M
10.50 mi08:47:331:58:0111:142:41
5:22
#4294
12M
12.00 mi09:10:542:21:2211:4723:21
15:34
#4213
Finish
13.11 mi09:23:432:34:1111:4612:49
11:33
#4230
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 57%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:52

Segment Time

12:05/mi

Pace

0.90 mi

Distance

Overall

3726

Women

1334

Division

179

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2M2.00 mi2.00 mi544922072893954(Top 60%)1478(Top 50%)199(Top 56%)
4M4.00 mi2.00 mi5121+3282012+195265+244725(Top 72%)1805(Top 62%)234(Top 66%)
6M6.00 mi2.00 mi4736+3851789+223240+254114(Top 63%)1478(Top 50%)201(Top 57%)
8M8.00 mi2.00 mi4861-1251849-60248-85069(Top 77%)1959(Top 67%)248(Top 70%)
9.6M9.60 mi1.60 mi4385+4761611+238212+362260(Top 34%)777(Top 27%)102(Top 29%)
10M10.00 mi0.40 mi4303+821583+28211+13730(Top 57%)1355(Top 46%)181(Top 51%)
10.5M10.50 mi0.50 mi4294+91577+62114073(Top 62%)1496(Top 51%)199(Top 56%)
12M12.00 mi1.50 mi4213+811551+262113954(Top 60%)1478(Top 50%)199(Top 56%)
Finish13.11 mi1.11 mi4230-171567-162114561(Top 69%)1816(Top 62%)236(Top 67%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 60%
~flat
+5ft-3ft

Overall

3954

Females

1478

F20-24

199

2M→4M

2.0 - 4.0 mi

Top 72%
×4story building
+67ft-69ft

Overall

4725

Females

1805

F20-24

235

4M→6M

4.0 - 6.0 mi

Top 63%
×9story building
+123ft-9ft

Overall

4114

Females

1478

F20-24

202

6M→8M

6.0 - 8.0 mi

Top 77%
×12story building
+166ft-53ft

Overall

5069

Females

1959

F20-24

248

8M→9.6M

8.0 - 9.6 mi

Top 34%
×13story building
+68ft-193ft

Overall

2260

Females

777

F20-24

102

9.6M→10M

9.6 - 10.0 mi

Top 57%
×2story building
+0ft-24ft

Overall

3730

Females

1355

F20-24

181

10M→10.5M

10.0 - 10.5 mi

Top 62%
×6story building
+1ft-73ft

Overall

4073

Females

1496

F20-24

199

10.5M→12M

10.5 - 12.0 mi

Top 60%
×21story building
+280ft-26ft

Overall

3954

Females

1478

F20-24

199

12M→Finish

12.0 - 13.1 mi

Top 69%
×7story building
+14ft-89ft

Overall

4561

Females

1816

F20-24

236

Passing Analysis

Category:
Athletes Passed
1651*
Passed By
432
Net Change
+1219
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5449
2M → 4M36032+328#5449#5121
4M → 6M402*17+385#5121#4736
6M → 8M93*218-125#4736#4861
8M → 9.6M4815+476#4861#4385
9.6M → 10M9917+82#4385#4303
10M → 10.5M178+9#4303#4294
10.5M → 12M144*63+81#4294#4213
12M → Finish55*72-17#4213#4230
TOTALS1651*432+1219

* 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