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SF MARATHON 1ST HALF 2026

Xiaofeng Luo

Bib: 16004•F•Age: 28

San Jose, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Top 39%
Division (F25-29)
#0 / 674
Top 43%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
21:19
Rank: #4169
Start → 2M
21:19 | 10:39/mi
4M
42:57
Rank: #4049 (+120)
2M → 4M
21:38 | 10:49/mi
6M
1:04:35
Rank: #3869 (+180)
4M → 6M
21:38 | 10:49/mi
8M
1:28:29
Rank: #4032 (-163)
6M → 8M
23:54 | 11:57/mi
9.6M
1:41:53
Rank: #3650 (+382)
8M → 9.6M
13:24 | 8:22/mi
10M
1:49:18
Rank: #3554 (+96)
9.6M → 10M
7:25 | 18:34/mi
10.5M
1:51:51
Rank: #3543 (+11)
10M → 10.5M
2:33 | 5:06/mi
12M
2:13:44
Rank: #3467 (+76)
10.5M → 12M
21:53 | 14:35/mi
Finish· 13.11 mi
2:25:01
Rank: #3408 (+59)
12M → Finish
11:17 | 10:10/mi

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:04:35
Pace10:46 /mi
2nd Half
Distance7.11 mi
Time1:20:26
Pace11:19 /mi
📊Positive Split: 24.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:59:3121:1910:3921:19
10:39
-
4M
4.00 mi07:21:0942:5710:4421:38
10:49
+0:10
6M
6.00 mi07:42:471:04:3510:4621:38
10:49
0:00
8M
8.00 mi08:06:411:28:2911:0423:54
11:57
+1:08
9.6M
9.60 mi08:20:051:41:5310:3713:24
8:22
-3:35
10M
10.00 mi08:27:301:49:1810:567:25
18:34
+10:12
10.5M
10.50 mi08:30:031:51:5110:392:33
5:06
-13:28
12M
12.00 mi08:51:562:13:4411:0921:53
14:35
+9:29
Finish
13.11 mi09:03:132:25:0111:0411:17
10:10
-4:25

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

5:06 /mi

Average Pace

11:04 /mi

Slowest Pace

18:34 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:57

11% of race

Time at Steady Pace

1:39:46

69% of race

Time at Slower Pace

29:18

20% of race

Average Pace: 11:04 /mi

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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 mi06:59:3121:1910:3921:19
10:39
#4169
4M
4.00 mi07:21:0942:5710:4421:38
10:49
#4049
6M
6.00 mi07:42:471:04:3510:4621:38
10:49
#3869
8M
8.00 mi08:06:411:28:2911:0423:54
11:57
#4032
9.6M
9.60 mi08:20:051:41:5310:3713:24
8:22
#3650
10M
10.00 mi08:27:301:49:1810:567:25
18:34
#3554
10.5M
10.50 mi08:30:031:51:5110:392:33
5:06
#3543
12M
12.00 mi08:51:562:13:4411:0921:53
14:35
#3467
Finish
13.11 mi09:03:132:25:0111:0411:17
10:10
#3408
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 43%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:58

Segment Time

11:05/mi

Pace

0.90 mi

Distance

Overall

2795

Women

903

Division

228

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi416914873623224(Top 49%)1128(Top 38%)294(Top 44%)
4M4.00 mi2.00 mi4049+1201427+60357+53982(Top 61%)1396(Top 48%)346(Top 51%)
6M6.00 mi2.00 mi3869+1801340+87332+253676(Top 56%)1249(Top 43%)318(Top 47%)
8M8.00 mi2.00 mi4032-1631400-60343-114517(Top 69%)1650(Top 56%)389(Top 58%)
9.6M9.60 mi1.60 mi3650+3821240+160312+311960(Top 30%)656(Top 22%)165(Top 24%)
10M10.00 mi0.40 mi3554+961197+43297+152744(Top 42%)888(Top 30%)220(Top 33%)
10.5M10.50 mi0.50 mi3543+111193+4295+23411(Top 52%)1170(Top 40%)285(Top 42%)
12M12.00 mi1.50 mi3467+761166+27291+43224(Top 49%)1128(Top 38%)294(Top 44%)
Finish13.11 mi1.11 mi3408+591145+21290+13086(Top 47%)1063(Top 36%)282(Top 42%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 49%
~flat
+5ft-3ft

Overall

3224

Females

1128

F25-29

294

2M→4M

2.0 - 4.0 mi

Top 61%
×4stories
+67ft-69ft

Overall

3982

Females

1396

F25-29

346

4M→6M

4.0 - 6.0 mi

Top 56%
×9stories
+123ft-9ft

Overall

3676

Females

1249

F25-29

318

6M→8M

6.0 - 8.0 mi

Top 69%
×12stories
+166ft-53ft

Overall

4517

Females

1650

F25-29

389

8M→9.6M

8.0 - 9.6 mi

Top 30%
×13stories
+68ft-193ft

Overall

1960

Females

656

F25-29

165

9.6M→10M

9.6 - 10.0 mi

Top 42%
×2stories
+0ft-24ft

Overall

2744

Females

888

F25-29

220

10M→10.5M

10.0 - 10.5 mi

Top 52%
×6stories
+1ft-73ft

Overall

3411

Females

1170

F25-29

285

10.5M→12M

10.5 - 12.0 mi

Top 49%
×21stories
+280ft-26ft

Overall

3224

Females

1128

F25-29

294

12M→Finish

12.0 - 13.1 mi

Top 47%
×7stories
+14ft-89ft

Overall

3086

Females

1063

F25-29

282

Passing Analysis

Category:
Athletes Passed
1263*
Passed By
502
Net Change
+761
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4169
2M → 4M238118+120#4169#4049
4M → 6M227*47+180#4049#3869
6M → 8M83*246-163#3869#4032
8M → 9.6M39513+382#4032#3650
9.6M → 10M1037+96#3650#3554
10M → 10.5M165+11#3554#3543
10.5M → 12M130*54+76#3543#3467
12M → Finish71*12+59#3467#3408
TOTALS1263*502+761

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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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