San Francisco Marathon logo
SF MARATHON 1ST HALF 2025

Stefanie Sillin

Fairfax, CA

Bib: 16263 F 37

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 7100
Top 48%
Gender (Female)
#0 / 3107
Top 36%
Division (F35-39)
#0 / 389
Top 37%
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
10:11/mi
18:26
→ flat
12 ft elev
5.34M
10:10/mi
54:21
↑ 80↓ 74
19 ft elev
6.15M
10:31/mi
1:02:52
↑ 1262.8%
149 ft elev
10.54M
10:24/mi
1:48:31
↑ 230↓ 3610.6%
20 ft elev
11.05M
14:01/mi
1:55:40
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
10:17/mi
2:16:51
↑ 97↓ 1140.2%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time1:02:52
Pace10:13 /mi
2nd Half
Distance6.96 mi
Time1:13:59
Pace10:38 /mi
📊Positive Split: 17.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi07:06:5518:2610:1118:26
10:11
-
5.34M
5.34 mi07:42:5054:2110:1135:55
10:10
-0:01
6.15M
6.15 mi07:51:211:02:5210:138:31
10:31
+0:21
10.54M
10.54 mi08:37:001:48:3110:1845:39
10:24
-0:07
11.05M
11.05 mi08:44:091:55:4010:287:09
14:01
+3:37
Finish
13.11 mi09:05:202:16:5110:2621:11
10:17
-3:44

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

10:10 /mi

Average Pace

10:26 /mi

Slowest Pace

14:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:09:42

95% of race

Time at Slower Pace

7:09

5% of race

Average Pace: 10:26 /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
1.81M
1.81 mi07:06:5518:2610:1118:26
10:11
#4278
5.34M
5.34 mi07:42:5054:2110:1135:55
10:10
#3847
6.15M
6.15 mi07:51:211:02:5210:138:31
10:31
#3753
10.54M
10.54 mi08:37:001:48:3110:1845:39
10:24
#3580
11.05M
11.05 mi08:44:091:55:4010:287:09
14:01
#3522
Finish
13.11 mi09:05:202:16:5110:2621:11
10:17
#3393
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
1.81M1.81 mi1.81 mi4278153219342781532193
5.34M5.34 mi3.53 mi3847+4311304+228170+2337071234164
6.15M6.15 mi0.81 mi3753+941264+40164+634051100144
10.54M10.54 mi4.39 mi3580+1731192+72151+1334481135144
11.05M11.05 mi0.51 mi3522+581163+29150+132081053150
Finish13.11 mi2.06 mi3393+1291117+46144+62838931124

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 60%
~flat
+4ft-3ft

Overall

4278

Females

1532

F35-39

193

1.81M→5.34M

1.8 - 5.3 mi

Top 52%
×4story building
+80ft-74ft

Overall

3707

Females

1234

F35-39

164

5.34M→6.15M

5.3 - 6.2 mi

Top 48%
×10story building
+126ft-4ft

Overall

3405

Females

1100

F35-39

144

6.15M→10.54M

6.2 - 10.5 mi

Top 49%
×21story building
+230ft-361ft

Overall

3448

Females

1135

F35-39

144

10.54M→11.05M

10.5 - 11.1 mi

Top 45%
×14story building
+172ft-0ft

Overall

3208

Females

1053

F35-39

150

11.05M→Finish

11.1 - 13.1 mi

Top 40%
×7story building
+97ft-114ft

Overall

2838

Females

931

F35-39

124

Passing Analysis

Category:
Athletes Passed
1109*
Passed By
224
Net Change
+885
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#4278
1.81M → 5.34M513*82+431#4278#3847
5.34M → 6.15M11117+94#3847#3753
6.15M → 10.54M257*84+173#3753#3580
10.54M → 11.05M8628+58#3580#3522
11.05M → Finish142*13+129#3522#3393
TOTALS1109*224+885

* 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

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events