San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Zi Zheng

Bib: 18771•F•Age: 33

SF, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F30-34)
#0 / 651
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
10:59/mi
21:59
→ flat
4M
11:07/mi
44:13
↑ 67↓ 69
6M
11:23/mi
1:06:59
↑ 1231.1%
8M
11:41/mi
1:30:20
↑ 166↓ 531.1%
9.6M
11:41/mi
1:49:01
↑ 68↓ 1931.5%
10M
24:47/mi
1:58:55
↓ 241.1%
10.5M
6:28/mi
2:02:09
↓ 732.7%
12M
18:21/mi
2:29:41
↑ 2803.2%
Finish· 13.11 mi
12:41/mi
2:43:45
↑ 14↓ 891.3%

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:06:59
Pace11:10 /mi
2nd Half
Distance7.11 mi
Time1:36:46
Pace13:37 /mi
📊Positive Split: 44.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:08:3121:5910:5921:59
10:59
-
4M
4.00 mi07:30:4544:1311:0322:14
11:07
+0:08
6M
6.00 mi07:53:311:06:5911:1022:46
11:23
+0:16
8M
8.00 mi08:16:521:30:2011:1823:21
11:41
+0:18
9.6M
9.60 mi08:35:331:49:0111:2118:41
11:41
0:00
10M
10.00 mi08:45:271:58:5511:549:54
24:47
+13:06
10.5M
10.50 mi08:48:412:02:0911:383:14
6:28
-18:19
12M
12.00 mi09:16:132:29:4112:2827:32
18:21
+11:53
Finish
13.11 mi09:30:172:43:4512:2914:04
12:41
-5:40

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

6:28 /mi

Average Pace

12:29 /mi

Slowest Pace

24:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14

2% of race

Time at Steady Pace

2:03:05

75% of race

Time at Slower Pace

37:26

23% of race

Average Pace: 12:29 /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 mi07:08:3121:5910:5921:59
10:59
#4690
4M
4.00 mi07:30:4544:1311:0322:14
11:07
#4475
6M
6.00 mi07:53:311:06:5911:1022:46
11:23
#4448
8M
8.00 mi08:16:521:30:2011:1823:21
11:41
#4325
9.6M
9.60 mi08:35:331:49:0111:2118:41
11:41
#4661
10M
10.00 mi08:45:271:58:5511:549:54
24:47
#4788
10.5M
10.50 mi08:48:412:02:0911:383:14
6:28
#4837
12M
12.00 mi09:16:132:29:4112:2827:32
18:21
#5016
Finish
13.11 mi09:30:172:43:4512:2914:04
12:41
#5046
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 85%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:08

Segment Time

14:36/mi

Pace

0.90 mi

Distance

Overall

5605

Women

2369

Division

548

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi469017654115612(Top 85%)2400(Top 82%)545(Top 84%)
4M4.00 mi2.00 mi4475+2151654+111379+324382(Top 67%)1611(Top 55%)367(Top 56%)
6M6.00 mi2.00 mi4448+271638+16378+14353(Top 66%)1598(Top 55%)380(Top 58%)
8M8.00 mi2.00 mi4325+1231548+90360+184245(Top 65%)1520(Top 52%)361(Top 55%)
9.6M9.60 mi1.60 mi4661-3361752-204409-495604(Top 85%)2383(Top 81%)549(Top 84%)
10M10.00 mi0.40 mi4788-1271825-73423-145548(Top 84%)2351(Top 80%)537(Top 82%)
10.5M10.50 mi0.50 mi4837-491853-28432-95851(Top 89%)2511(Top 86%)579(Top 89%)
12M12.00 mi1.50 mi5016-1791971-118466-345612(Top 85%)2400(Top 82%)545(Top 84%)
Finish13.11 mi1.11 mi5046-301995-24467-15386(Top 82%)2287(Top 78%)519(Top 80%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 85%
~flat
+5ft-3ft

Overall

5612

Females

2400

F30-34

547

2M→4M

2.0 - 4.0 mi

Top 67%
×4story building
+67ft-69ft

Overall

4382

Females

1611

F30-34

370

4M→6M

4.0 - 6.0 mi

Top 66%
×9story building
+123ft-9ft

Overall

4353

Females

1598

F30-34

382

6M→8M

6.0 - 8.0 mi

Top 65%
×12story building
+166ft-53ft

Overall

4245

Females

1520

F30-34

363

8M→9.6M

8.0 - 9.6 mi

Top 85%
×13story building
+68ft-193ft

Overall

5604

Females

2383

F30-34

551

9.6M→10M

9.6 - 10.0 mi

Top 84%
×2story building
+0ft-24ft

Overall

5548

Females

2351

F30-34

539

10M→10.5M

10.0 - 10.5 mi

Top 89%
×6story building
+1ft-73ft

Overall

5851

Females

2511

F30-34

581

10.5M→12M

10.5 - 12.0 mi

Top 85%
×21story building
+280ft-26ft

Overall

5612

Females

2400

F30-34

547

12M→Finish

12.0 - 13.1 mi

Top 82%
×7story building
+14ft-89ft

Overall

5386

Females

2287

F30-34

519

Passing Analysis

Category:
Athletes Passed
785*
Passed By
1141
Net Change
-356
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4690
2M → 4M29479+215#4690#4475
4M → 6M150*123+27#4475#4448
6M → 8M235*112+123#4448#4325
8M → 9.6M5341-336#4325#4661
9.6M → 10M16143-127#4661#4788
10M → 10.5M251-49#4788#4837
10.5M → 12M35*214-179#4837#5016
12M → Finish48*78-30#5016#5046
TOTALS785*1141-356

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

📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events