San Francisco Marathon logo
SF MARATHON 2023

Britney Volckaert

Bib: 6724•F•Age: 23

San Jose, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 4888
Gender (Female)
#0 / 1310
F20-29
#0 / 158
Race Day Weather
69°/59°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
2.2 Miles
21:13
Rank: #4203
Start → 2.2 Miles
21:13 | 9:39/mi
5.7 Miles
1:08:08
Rank: #4610 (-407)
2.2 Miles → 5.7 Miles
46:55 | 13:24/mi
6.43 Miles
1:18:53
Rank: #4489 (+121)
5.7 Miles → 6.43 Miles
10:45 | 14:43/mi
10.92 Miles
2:05:28
Rank: #4208 (+281)
6.43 Miles → 10.92 Miles
46:35 | 10:22/mi
Garmin Hill Challenge· 11.42 mi
2:12:57
Rank: #4189 (+19)
10.92 Miles → Garmin Hill Challenge
7:29 | 14:58/mi
14.95 Miles
2:49:24
Rank: #4100 (+89)
Garmin Hill Challenge → 14.95 Miles
36:27 | 10:20/mi
18 Miles
3:32:57
Rank: #4097 (+3)
14.95 Miles → 18 Miles
43:33 | 14:17/mi
24 Miles
4:52:07
Rank: #4049 (+48)
18 Miles → 24 Miles
1:19:10 | 13:12/mi
Finish· 26.22 mi
5:21:19
Rank: #4042 (+7)
24 Miles → Finish
29:12 | 13:10/mi

Course Map & Elevation

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.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.2 Miles
2.20 mi05:51:2121:139:3921:13
9:39
-
5.7 Miles
5.70 mi06:38:161:08:0811:5746:55
13:24
+3:45
6.43 Miles
6.43 mi06:49:011:18:5312:1610:45
14:43
+1:19
10.92 Miles
10.92 mi07:35:362:05:2811:2946:35
10:22
-4:21
Garmin Hill Challenge
11.42 mi07:43:052:12:5711:397:29
14:58
+4:36
14.95 Miles
14.95 mi08:19:322:49:2411:2036:27
10:20
-4:38
18 Miles
18.00 mi09:03:053:32:5711:5043:33
14:17
+3:57
24 Miles
24.00 mi10:22:154:52:0712:101:19:10
13:12
-1:05
Finish
26.22 mi10:51:275:21:1912:1629:12
13:10
-0:02

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

9:39 /mi

Average Pace

12:16 /mi

Slowest Pace

14:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:44:15

32% of race

Time at Steady Pace

2:35:17

48% of race

Time at Slower Pace

1:01:47

19% of race

Average Pace: 12:15 /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...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2.2 Miles
2.20 mi05:51:2121:139:3921:13
9:39
#4203
5.7 Miles
5.70 mi06:38:161:08:0811:5746:55
13:24
#4610
6.43 Miles
6.43 mi06:49:011:18:5312:1610:45
14:43
#4489
10.92 Miles
10.92 mi07:35:362:05:2811:2946:35
10:22
#4208
Garmin Hill Challenge
11.42 mi07:43:052:12:5711:397:29
14:58
#4189
14.95 Miles
14.95 mi08:19:322:49:2411:2036:27
10:20
#4100
18 Miles
18.00 mi09:03:053:32:5711:5043:33
14:17
#4097
24 Miles
24.00 mi10:22:154:52:0712:101:19:10
13:12
#4049
Finish
26.22 mi10:51:275:21:1912:1629:12
13:10
#4042
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2.2 Miles2.20 mi2.20 mi420310161384203(Top 86%)1016(Top 78%)138(Top 87%)
5.7 Miles5.70 mi3.50 mi4610-4071178-162149-114696(Top 96%)1216(Top 93%)152(Top 96%)
6.43 Miles6.43 mi0.73 mi4489+1211124+54145+43472(Top 71%)743(Top 57%)107(Top 68%)
10.92 Miles10.92 mi4.49 mi4208+2811006+118140+53635(Top 74%)808(Top 62%)112(Top 71%)
Garmin Hill Challenge11.42 mi0.50 mi4189+19998+8141-13800(Top 78%)867(Top 66%)123(Top 78%)
14.95 Miles14.95 mi3.53 mi4100+89971+27140+13819(Top 78%)894(Top 68%)128(Top 81%)
18 Miles18.00 mi3.05 mi4097+3987-161404076(Top 83%)1022(Top 78%)136(Top 86%)
24 Miles24.00 mi6.00 mi4049+48993-6139+13931(Top 80%)1011(Top 77%)135(Top 85%)
Finish26.22 mi2.22 mi4042+7994-1138+13950(Top 81%)1035(Top 79%)134(Top 85%)

Segment Performance Analysis

Start → 2.2 Miles

0.0 - 2.2 mi

Top 86%
×1human
+8ft-12ft

Overall

4203

Females

1016

F20-24

141

2.2 Miles→5.7 Miles

2.2 - 5.7 mi

Top 96%
×6stories
+92ft-87ft

Overall

4696

Females

1216

F20-24

155

5.7 Miles→6.43 Miles

5.7 - 6.4 mi

Top 71%
×11stories
+137ft-3ft

Overall

3472

Females

743

F20-24

108

6.43 Miles→10.92 Miles

6.4 - 10.9 mi

Top 74%
×21stories
+225ft-318ft

Overall

3635

Females

808

F20-24

112

10.92 Miles→Garmin Hill Challenge

10.9 - 11.4 mi

Top 78%
×11stories
+134ft-123ft

Overall

3800

Females

867

F20-24

123

Garmin Hill Challenge→14.95 Miles

11.4 - 14.9 mi

Top 78%
×16stories
+234ft-225ft

Overall

3819

Females

894

F20-24

128

14.95 Miles→18 Miles

14.9 - 18.0 mi

Top 83%
×12stories
+165ft-60ft

Overall

4076

Females

1022

F20-24

136

18 Miles→24 Miles

18.0 - 24.0 mi

Top 80%
×21stories
+142ft-377ft

Overall

3931

Females

1011

F20-24

135

24 Miles→Finish

24.0 - 26.2 mi

Top 81%
~flat
+2ft-2ft

Overall

3950

Females

1035

F20-24

134

Passing Analysis

Category:
Athletes Passed
780*
Passed By
619
Net Change
+161
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.2 Miles----#4203
2.2 Miles → 5.7 Miles37*444-407#4203#4610
5.7 Miles → 6.43 Miles1232+121#4610#4489
6.43 Miles → 10.92 Miles289*8+281#4489#4208
10.92 Miles → Garmin Hill Challenge3314+19#4208#4189
Garmin Hill Challenge → 14.95 Miles101*12+89#4189#4100
14.95 Miles → 18 Miles65*62+3#4100#4097
18 Miles → 24 Miles100*52+48#4097#4049
24 Miles → Finish32*25+7#4049#4042
TOTALS780*619+161

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

📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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
Share Feedback

Public Race Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events