San Francisco Marathon logo
SF MARATHON 1ST HALF 2023

Katherine Foresman

Bib: 16487•F•Age: 25

San Francisco, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6072
Gender (Female)
#0 / 2732
Division (F25-29)
#0 / 629
Race Day Weather
60°/50°F
overcast 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
1.40M
9:56/mi
13:54
→ flat
2.13M
21:49/mi
29:50
→ flat
6.43M
13:18/mi
1:27:02
↑ 274↓ 780.9%
6.62M
-40:-21/mi
1:19:33
↑ 161.6%
10.65M
11:11/mi
2:04:39
↑ 153↓ 3611.0%
Finish· 13.11 mi
10:41/mi
2:30:56
↑ 244↓ 1141.0%

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 6.62M
Distance6.62 mi
Time1:19:33
Pace12:01 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:11:23
Pace11:00 /mi
📊Negative Split: 10.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:08:0213:549:5613:54
9:56
-
2.13M
2.13 mi07:23:5829:5014:0015:56
21:49
+11:53
6.43M
6.43 mi08:21:101:27:0213:3257:12
13:18
-8:31
6.62M
6.62 mi08:13:411:19:3312:01
-40:-21
-53:39
10.65M
10.65 mi08:58:472:04:3911:4245:06
11:11
+51:32
Finish
13.11 mi09:25:042:30:5611:3126:17
10:41
-0:30

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

-41:-21 /mi

Average Pace

11:31 /mi

Slowest Pace

21:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:30:56

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 11:31 /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
1.40M
1.40 mi07:08:0213:549:5613:54
9:56
#3914
2.13M
2.13 mi07:23:5829:5014:0015:56
21:49
#4413
6.43M
6.43 mi08:21:101:27:0213:3257:12
13:18
#4346
6.62M
6.62 mi08:13:411:19:3312:01
-40:-21
#4383
10.65M
10.65 mi08:58:472:04:3911:4245:06
11:11
#4342
Finish
13.11 mi09:25:042:30:5611:3126:17
10:41
#4272
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.40M1.40 mi1.40 mi391414984033914(Top 64%)1498(Top 55%)403(Top 64%)
2.13M2.13 mi0.73 mi4413-4991747-249453-504926(Top 81%)2047(Top 75%)519(Top 83%)
6.43M6.43 mi4.30 mi4346+671699+48447+64345(Top 72%)1705(Top 62%)449(Top 71%)
6.62M6.62 mi0.19 mi4383-371719-20460-13---
10.65M10.65 mi4.03 mi4342+411710+9447+134348(Top 72%)1735(Top 64%)448(Top 71%)
Finish13.11 mi2.46 mi4272+701688+22441+63997(Top 66%)1600(Top 59%)409(Top 65%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 64%
~flat
+3ft-2ft

Overall

3914

Females

1498

F25-29

404

1.40M→2.13M

1.4 - 2.1 mi

Top 81%
~flat
+3ft-1ft

Overall

4926

Females

2047

F25-29

524

2.13M→6.43M

2.1 - 6.4 mi

Top 72%
×17story building
+274ft-78ft

Overall

4345

Females

1705

F25-29

449

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 72%
×21story building
+153ft-361ft

Overall

4348

Females

1735

F25-29

448

10.65M→Finish

10.7 - 13.1 mi

Top 66%
×17story building
+244ft-114ft

Overall

3997

Females

1600

F25-29

409

Passing Analysis

Category:
Athletes Passed
717*
Passed By
1075
Net Change
-358
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#3914
1.40M → 2.13M44543-499#3914#4413
2.13M → 6.43M332*265+67#4413#4346
6.43M → 6.62M5693-37#4346#4383
6.62M → 10.65M166*125+41#4383#4342
10.65M → Finish119*49+70#4342#4272
TOTALS717*1075-358

* 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

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events