San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Emily Korby

San Francisco, CA

Bib: 11315 F 32

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6072
Top 17%
Gender (Female)
#0 / 2732
Top 10%
Division (F30-34)
#0 / 557
Top 11%
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
8:11/mi
11:28
→ flat
11 ft elev
2.13M
16:41/mi
23:39
→ flat
13 ft elev
6.43M
10:20/mi
1:08:05
↑ 274↓ 780.9%
213 ft elev
6.62M
-32:-39/mi
1:02:04
↑ 161.6%
239 ft elev
10.65M
8:42/mi
1:37:08
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
7:55/mi
1:56:37
↑ 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
1:02:049:23 /mi+12.1%
2nd Half
54:338:24 /mi✓ faster
Negative split — 12.1% 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
11:288:111.40 mi11:28
8:11
-
2.13M
23:3911:060.73 mi12:11
16:41
+8:30
6.43M
1:08:0510:354.30 mi44:26
10:20
-6:21
6.62M
1:02:049:230.19 mi
-32:-39
-42:59
10.65M
1:37:089:074.03 mi35:04
8:42
+41:21
Finish(13.11 mi)
1:56:378:542.46 mi19:29
7:55
-0:47
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-33:-39 /mi

Average Pace

8:54 /mi

Slowest Pace

16:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:56:37

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:54 /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. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
1.40M1.40 mi110029568110029568
2.13M0.73 mi1121-21298-368119233575
6.43M4.30 mi1118+3279+1964+4121030772
6.62M0.19 mi1091+2727964---
10.65M4.03 mi1135-44278+163+1126733182
Finish(13.11 mi)2.46 mi1057+78260+1859+494222058

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 18%
~flat
+3ft-2ft

Overall

1100

Females

295

F30-34

68

1.40M→2.13M

1.4 - 2.1 mi

Top 20%
~flat
+3ft-1ft

Overall

1192

Females

335

F30-34

75

2.13M→6.43M

2.1 - 6.4 mi

Top 20%
×17story building
+274ft-78ft

Overall

1210

Females

307

F30-34

72

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F30-34

-

6.62M→10.65M

6.6 - 10.7 mi

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

Overall

1267

Females

331

F30-34

82

10.65M→Finish

10.7 - 13.1 mi

Top 16%
×17story building
+244ft-114ft

Overall

942

Females

220

F30-34

58

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#1100
1.40M → 2.13M
10887-21
#1100 → #1121
2.13M → 6.43M
115118*+3
#1121 → #1118
6.43M → 6.62M
2148+27
#1118 → #1091
6.62M → 10.65M
9753*-44
#1091 → #1135
10.65M → Finish
1997*+78
#1135 → #1057
TOTALS
360403*+43
#1100 → #1057

* 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

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events