Peter Brostowicz

san mateo, CA

Bib: 530 M 49

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 92
Gender (Male)
#0 / 77
Masters (Masters Men)
#0 / 28
Overall Male
#0 / 77
Race Day Weather
56°/46°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Mile 10
Mile 20
Mile 30
Mile 40
Start
0:00
Race begins
1st Marathon TOD· 26.22 mi
12:16/mi
5:21:16
10591059
Finish· 52.40 mi
15:11/mi
11:58:52
13791378
Course Elevation
2,438ft
Total climb
281ft
Range
10 to 291 ft
2,437ft
Total descent
About the height of two Statues of Liberty

See every mile of your race

Add your watch's GPX to unlock per-mile pace, heart rate, and grade — mile by mile on this timeline.

Works with Garmin, Apple Watch, Strava, COROS, Suunto & more.

The Course

Half Splits

1st Half· via 1st Marathon TOD
5:21:1612:16 /mi⚡ faster
2nd Half
6:37:3615:11 /mi+23.8%
Positive split — 23.8% slower in the second half
Is this your race?

Unlock your AI Race Performance Report

Your Race Story, performance analysis & focus areas — built from your data, free when you claim.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1st Marathon TOD(26.22 mi)
5:21:1612:1626.22 mi5:21:16
12:16
-
Finish(52.40 mi)
11:58:5213:4326.18 mi6:37:36
15:11
+2:55
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

12:16 /mi

Average Pace

13:43 /mi

Slowest Pace

15:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

5:21:16

45% of race

Time at Steady Pace

6:37:36

55% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 13:43 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

Loading...
0mi13.1mi26.2mi39.3mi52.4mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesOverall MaleSeg. OverallSeg. MalesSeg. Overall Male
1st Marathon TOD(26.22 mi)26.22 mi675858675858
Finish(52.40 mi)26.18 mi82-1569-1169-11806767

Segment Performance Analysis

Start → 1st Marathon TOD

0.0 - 26.2 mi

Top 73%
14 ft13 ft
1059ft1059ft
266 ft

Overall

67

Males

58

M45-49

9

1st Marathon TOD→Finish

26.2 - 52.4 mi

Top 87%
14 ft15 ft
1379ft1378ft
276 ft

Overall

80

Males

67

M45-49

9

Passing Analysis

Category:
Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 1st Marathon TOD-#67
1st Marathon TODFinish
172-15
#67 #82
TOTALS
172-15
#67 #82

Passing Visualized

Category:
Loading...

Passing Circle

Loading...

Position Flow

Loading...

Race Lanes

Loading...

Is this your race? Claim it to upload your GPX and export your data as yours.

Upload your GPX file

Add per-mile pace & heart rate — works with Garmin, Apple Watch, Strava & more.

Download your race track as a GPX or TCX file for Strava, Garmin Connect, or other 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