San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Di Zhu

San Mateo, CA

Bib: 11986 F 29

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6072
Top 30%
Gender (Female)
#0 / 2732
Top 20%
Division (F25-29)
#0 / 629
Top 24%
Race Day Weather
60°/50°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.40M
8:21/mi
11:42
→ flat
11 ft elev
2.13M
17:51/mi
24:44
→ flat
13 ft elev
6.43M
11:00/mi
1:12:04
↑ 274↓ 780.9%
213 ft elev
6.62M
-35:-48/mi
1:05:27
↑ 161.6%
239 ft elev
10.65M
9:14/mi
1:42:41
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
9:06/mi
2:05:03
↑ 244↓ 1141.0%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:05:279:53 /mi+8.9%
2nd Half
59:369:11 /mi✓ faster
Negative split — 8.9% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
11:428:211.40 mi11:42
8:21
-
2.13M
24:4411:370.73 mi13:02
17:51
+9:30
6.43M
1:12:0411:124.30 mi47:20
11:00
-6:51
6.62M
1:05:279:530.19 mi
-35:-48
-46:48
10.65M
1:42:419:384.03 mi37:14
9:14
+45:02
Finish(13.11 mi)
2:05:039:322.46 mi22:22
9:06
-0:08
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-36:-48 /mi

Average Pace

9:32 /mi

Slowest Pace

17:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:05:03

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:32 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.40M1.40 mi13483901161348390116
2.13M0.73 mi1607-259485-95137-212010640174
6.43M4.30 mi1783-176533-48155-181948601171
6.62M0.19 mi1691+92506+27147+8---
10.65M4.03 mi1746-55518-12148-11959599167
Finish(13.11 mi)2.46 mi1801-55541-23150-22253765213

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 22%
~flat
+3ft-2ft

Overall

1348

Females

390

F25-29

117

1.40M→2.13M

1.4 - 2.1 mi

Top 33%
~flat
+3ft-1ft

Overall

2010

Females

640

F25-29

178

2.13M→6.43M

2.1 - 6.4 mi

Top 32%
×17story building
+274ft-78ft

Overall

1948

Females

601

F25-29

171

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F25-29

-

6.62M→10.65M

6.6 - 10.7 mi

Top 32%
×21story building
+153ft-361ft

Overall

1959

Females

599

F25-29

167

10.65M→Finish

10.7 - 13.1 mi

Top 37%
×17story building
+244ft-114ft

Overall

2253

Females

765

F25-29

213

Passing Analysis

Category:
Passed
369*
Passed By
822
Net Change
-453
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#1348
1.40M → 2.13M26285-259#1348#1607
2.13M → 6.43M111*287-176#1607#1783
6.43M → 6.62M11119+92#1783#1691
6.62M → 10.65M72*127-55#1691#1746
10.65M → Finish49*104-55#1746#1801
TOTALS369*822-453

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

Passing Charts

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

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events