Joy Chang

Alameda, CA

Bib: 15505 F 18

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 5177
Top 27%
Gender (Female)
#0 / 2293
Top 15%
F19 & Under
#0 / 50
Top 30%
Race Day Weather
56°/46°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2.13M
12:24/mi
26:24
→ flat
6.62M
9:07/mi
1:07:20
29978
7.12M
10:26/mi
1:12:33
27
10.65M
8:13/mi
1:41:34
127360
Finish· 13.11 mi
8:02/mi
2:01:20
244114
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:07:2010:10 /mi+19.8%
2nd Half
54:008:19 /mi✓ faster
Negative split — 19.8% 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
2.13M
26:2412:242.13 mi26:24
12:24
-
6.62M
1:07:2010:104.49 mi40:56
9:07
-3:17
7.12M
1:12:3310:110.50 mi5:13
10:26
+1:19
10.65M
1:41:349:323.53 mi29:01
8:13
-2:13
Finish(13.11 mi)
2:01:209:152.46 mi19:46
8:02
-0:11
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:02 /mi

Average Pace

9:15 /mi

Slowest Pace

12:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

48:47

40% of race

Time at Steady Pace

40:56

34% of race

Time at Slower Pace

31:37

26% of race

Average Pace: 9:15 /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. DistOverallFemalesF19 & UnderSeg. OverallSeg. FemalesSeg. F19 & Under
2.13M2.13 mi249482126249482126
6.62M4.49 mi1986+508589+23221+5172648317
7.12M0.50 mi1787+199495+9421557929
10.65M3.53 mi1509+278399+9617+4106724312
Finish(13.11 mi)2.46 mi1379+130350+4915+2102123914

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 48%
~flat
+6ft-3ft

Overall

2494

Females

821

F15-19

25

2.13M→6.62M

2.1 - 6.6 mi

Top 33%
×19story building
+299ft-78ft

Overall

1726

Females

483

F15-19

16

6.62M→7.12M

6.6 - 7.1 mi

Top 11%
×2story building
+27ft-0ft

Overall

557

Females

92

F15-19

9

7.12M→10.65M

7.1 - 10.7 mi

Top 21%
×21story building
+127ft-360ft

Overall

1067

Females

243

F15-19

11

10.65M→Finish

10.7 - 13.1 mi

Top 20%
×17story building
+244ft-114ft

Overall

1021

Females

239

F15-19

13

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2.13M-#2494
2.13M6.62M
25533*+508
#2494 #1986
6.62M7.12M
1200+199
#1986 #1787
7.12M10.65M
4282*+278
#1787 #1509
10.65MFinish
8138*+130
#1509 #1379
TOTALS
381153*+1115
#2494 #1379

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

Passing Visualized

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