Brittani Chew

Bib: 13717FAge: 28

Danville, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 5177
Gender (Female)
#0 / 2293
Division (F25-29)
#0 / 585
Race Day Weather
56°/46°F
overcast clouds

⏱️ Race Timeline

Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2.13M
13:09/mi
28:00
→ flat
6.62M
12:15/mi
1:23:00
299780.9%
7.12M
14:52/mi
1:30:26
271.0%
10.65M
11:15/mi
2:10:10
1273601.3%
Finish· 13.11 mi
11:05/mi
2:37:24
2441141.0%

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
Time1:23:00
Pace12:32 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:14:24
Pace11:28 /mi
📊Negative Split: 10.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.13M
2.13 mi07:48:3628:0013:0928:00
13:09
-
6.62M
6.62 mi08:43:361:23:0012:3255:00
12:15
-0:54
7.12M
7.12 mi08:51:021:30:2612:427:26
14:52
+2:37
10.65M
10.65 mi09:30:462:10:1012:1339:44
11:15
-3:37
Finish
13.11 mi09:58:002:37:2412:0027:14
11:05
-0:10

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

11:05 /mi

Average Pace

12:00 /mi

Slowest Pace

14:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:06:58

43% of race

Time at Steady Pace

55:00

35% of race

Time at Slower Pace

35:26

23% of race

Average Pace: 12:00 /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
2.13M
2.13 mi07:48:3628:0013:0928:00
13:09
#3357
6.62M
6.62 mi08:43:361:23:0012:3255:00
12:15
#4377
7.12M
7.12 mi08:51:021:30:2612:427:26
14:52
#4285
10.65M
10.65 mi09:30:462:10:1012:1339:44
11:15
#4234
Finish
13.11 mi09:58:002:37:2412:0027:14
11:05
#4158
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2.13M2.13 mi2.13 mi335712433393357(Top 65%)1243(Top 54%)339(Top 58%)
6.62M6.62 mi4.49 mi4377-10201809-566495-1564660(Top 90%)1969(Top 86%)532(Top 91%)
7.12M7.12 mi0.50 mi4285+921752+57484+113238(Top 63%)1184(Top 52%)337(Top 58%)
10.65M10.65 mi3.53 mi4234+511724+28473+114143(Top 80%)1703(Top 74%)471(Top 81%)
Finish13.11 mi2.46 mi4158+761697+27470+33823(Top 74%)1569(Top 68%)434(Top 74%)

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 65%
~flat
+6ft-3ft

Overall

3357

Females

1243

F25-29

341

2.13M→6.62M

2.1 - 6.6 mi

Top 90%
×19story building
+299ft-78ft

Overall

4660

Females

1969

F25-29

535

6.62M→7.12M

6.6 - 7.1 mi

Top 63%
×2story building
+27ft-0ft

Overall

3238

Females

1184

F25-29

340

7.12M→10.65M

7.1 - 10.7 mi

Top 80%
×21story building
+127ft-360ft

Overall

4143

Females

1703

F25-29

474

10.65M→Finish

10.7 - 13.1 mi

Top 74%
×17story building
+244ft-114ft

Overall

3823

Females

1569

F25-29

434

Passing Analysis

Category:
Athletes Passed
290*
Passed By
1091
Net Change
-801
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.13M----#3357
2.13M6.62M13*1033-1020#3357#4377
6.62M7.12M94*2+92#4377#4285
7.12M10.65M85*34+51#4285#4234
10.65MFinish98*22+76#4234#4158
TOTALS290*1091-801

* 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

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events