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SF MARATHON 1ST HALF 2026

Xiaorong Zhou

Bib: 18049•F•Age: 29

Burlingame, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F25-29)
#0 / 674
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
12:29/mi
24:59
→ flat
4M
12:51/mi
50:40
↑ 67↓ 69
6M
12:33/mi
1:15:46
↑ 1231.1%
8M
12:01/mi
1:39:49
↑ 166↓ 531.1%
9.6M
12:01/mi
1:59:03
↑ 68↓ 1931.5%
10M
22:52/mi
2:08:11
↓ 241.1%
10.5M
5:56/mi
2:11:09
↓ 732.7%
12M
17:27/mi
2:37:20
↑ 2803.2%
Finish· 13.11 mi
11:58/mi
2:50:36
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:15:46
Pace12:38 /mi
2nd Half
Distance7.11 mi
Time1:34:50
Pace13:20 /mi
📊Positive Split: 25.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:08:2724:5912:2924:59
12:29
-
4M
4.00 mi07:34:0850:4012:4025:41
12:51
+0:22
6M
6.00 mi07:59:141:15:4612:3825:06
12:33
-0:18
8M
8.00 mi08:23:171:39:4912:2924:03
12:01
-0:32
9.6M
9.60 mi08:42:311:59:0312:2419:14
12:01
0:00
10M
10.00 mi08:51:392:08:1112:499:08
22:52
+10:51
10.5M
10.50 mi08:54:372:11:0912:292:58
5:56
-16:56
12M
12.00 mi09:20:482:37:2013:0726:11
17:27
+11:31
Finish
13.11 mi09:34:042:50:3613:0113:16
11:58
-5:29

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

5:56 /mi

Average Pace

13:01 /mi

Slowest Pace

22:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58

2% of race

Time at Steady Pace

2:12:19

78% of race

Time at Slower Pace

35:19

21% of race

Average Pace: 13:01 /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 mi07:08:2724:5912:2924:59
12:29
#6222
4M
4.00 mi07:34:0850:4012:4025:41
12:51
#6144
6M
6.00 mi07:59:141:15:4612:3825:06
12:33
#5992
8M
8.00 mi08:23:171:39:4912:2924:03
12:01
#5692
9.6M
9.60 mi08:42:311:59:0312:2419:14
12:01
#5761
10M
10.00 mi08:51:392:08:1112:499:08
22:52
#5707
10.5M
10.50 mi08:54:372:11:0912:292:58
5:56
#5693
12M
12.00 mi09:20:482:37:2013:0726:11
17:27
#5654
Finish
13.11 mi09:34:042:50:3613:0113:16
11:58
#5583
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 75%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:06

Segment Time

13:27/mi

Pace

0.90 mi

Distance

Overall

4928

Women

1981

Division

481

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi622226856285131(Top 78%)2129(Top 73%)517(Top 77%)
4M4.00 mi2.00 mi6144+782638+47618+106038(Top 92%)2584(Top 88%)613(Top 91%)
6M6.00 mi2.00 mi5992+1522530+108602+165558(Top 85%)2270(Top 77%)553(Top 82%)
8M8.00 mi2.00 mi5692+3002341+189564+384588(Top 70%)1683(Top 57%)399(Top 59%)
9.6M9.60 mi1.60 mi5761-692391-50573-95846(Top 89%)2506(Top 86%)586(Top 87%)
10M10.00 mi0.40 mi5707+542362+29567+64919(Top 75%)1986(Top 68%)474(Top 70%)
10.5M10.50 mi0.50 mi5693+142356+6568-15269(Top 80%)2167(Top 74%)529(Top 78%)
12M12.00 mi1.50 mi5654+392342+14563+55131(Top 78%)2129(Top 73%)517(Top 77%)
Finish13.11 mi1.11 mi5583+712311+31560+34901(Top 75%)2022(Top 69%)492(Top 73%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 78%
~flat
+5ft-3ft

Overall

5131

Females

2129

F25-29

517

2M→4M

2.0 - 4.0 mi

Top 92%
×4story building
+67ft-69ft

Overall

6038

Females

2584

F25-29

615

4M→6M

4.0 - 6.0 mi

Top 85%
×9story building
+123ft-9ft

Overall

5558

Females

2270

F25-29

553

6M→8M

6.0 - 8.0 mi

Top 70%
×12story building
+166ft-53ft

Overall

4588

Females

1683

F25-29

399

8M→9.6M

8.0 - 9.6 mi

Top 89%
×13story building
+68ft-193ft

Overall

5846

Females

2506

F25-29

586

9.6M→10M

9.6 - 10.0 mi

Top 75%
×2story building
+0ft-24ft

Overall

4919

Females

1986

F25-29

475

10M→10.5M

10.0 - 10.5 mi

Top 80%
×6story building
+1ft-73ft

Overall

5269

Females

2167

F25-29

530

10.5M→12M

10.5 - 12.0 mi

Top 78%
×21story building
+280ft-26ft

Overall

5131

Females

2129

F25-29

517

12M→Finish

12.0 - 13.1 mi

Top 75%
×7story building
+14ft-89ft

Overall

4901

Females

2022

F25-29

492

Passing Analysis

Category:
Athletes Passed
957*
Passed By
318
Net Change
+639
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6222
2M → 4M133*55+78#6222#6144
4M → 6M174*22+152#6144#5992
6M → 8M316*16+300#5992#5692
8M → 9.6M74143-69#5692#5761
9.6M → 10M7521+54#5761#5707
10M → 10.5M184+14#5707#5693
10.5M → 12M81*42+39#5693#5654
12M → Finish86*15+71#5654#5583
TOTALS957*318+639

* 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