Joe Chalwin

Lafayette, CA

Bib: 19931 M 20

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6575
Top 10%
Gender (Male)
#0 / 3619
Top 15%
M20-29
#0 / 358
Top 18%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
8:29/mi
16:58
→ flat
12 ft elev
4M
8:11/mi
33:20
6769
10 ft elev
6M
8:25/mi
50:11
1231.1%
126 ft elev
8M
7:41/mi
1:05:33
166531.1%
246 ft elev
9.6M
7:41/mi
1:17:50
681931.5%
126 ft elev
10M
15:59/mi
1:24:13
241.1%
90 ft elev
10.5M
3:50/mi
1:26:08
732.7%
18 ft elev
12M
12:01/mi
1:44:10
2803.2%
272 ft elev
Finish· 13.11 mi
8:05/mi
1:53:08
14891.3%
205 ft elev
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6M
50:118:22 /mi⚡ faster
2nd Half
1:02:578:51 /mi+25.4%
Positive split — 25.4% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
16:588:292.00 mi16:58
8:29
-
4M
33:208:202.00 mi16:22
8:11
-0:18
6M
50:118:222.00 mi16:51
8:25
+0:14
8M
1:05:338:122.00 mi15:22
7:41
-0:44
9.6M
1:17:508:061.60 mi12:17
7:41
0:00
10M
1:24:138:250.40 mi6:23
15:59
+8:18
10.5M
1:26:088:120.50 mi1:55
3:50
-12:09
12M
1:44:108:411.50 mi18:02
12:01
+8:11
Finish(13.11 mi)
1:53:088:381.11 mi8:58
8:05
-3:56
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

3:50 /mi

Average Pace

8:38 /mi

Slowest Pace

15:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:55

2% of race

Time at Steady Pace

1:26:48

77% of race

Time at Slower Pace

24:25

22% of race

Average Pace: 8:38 /mi

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

Heatmap

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower
Featured Segment

Garmin Challenge

Top 14%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:18

Segment Time

9:13/mi

Pace

0.90 mi

Distance

Overall

930

Men

743

Division

103

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi890720841238936123
4M2.00 mi700+190578+14270+1456447457
6M2.00 mi710-10586-872-277663980
8M2.00 mi544+166461+12554+1830126232
9.6M1.60 mi601-57501-4063-91220819115
10M0.40 mi631-30524-2365-21222929118
10.5M0.50 mi626+5520+464+139834352
12M1.50 mi688-62562-4266-21238936123
Finish(13.11 mi)1.11 mi653+35542+206666354873

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 19%
~flat
+5ft-3ft

Overall

1238

Males

936

M20-24

124

2M→4M

2.0 - 4.0 mi

Top 9%
×4story building
+67ft-69ft

Overall

564

Males

474

M20-24

58

4M→6M

4.0 - 6.0 mi

Top 12%
×9story building
+123ft-9ft

Overall

776

Males

639

M20-24

81

6M→8M

6.0 - 8.0 mi

Top 5%
×12story building
+166ft-53ft

Overall

301

Males

262

M20-24

33

8M→9.6M

8.0 - 9.6 mi

Top 19%
×13story building
+68ft-193ft

Overall

1220

Males

819

M20-24

116

9.6M→10M

9.6 - 10.0 mi

Top 19%
×2story building
+0ft-24ft

Overall

1222

Males

929

M20-24

119

10M→10.5M

10.0 - 10.5 mi

Top 6%
×6story building
+1ft-73ft

Overall

398

Males

343

M20-24

52

10.5M→12M

10.5 - 12.0 mi

Top 19%
×21story building
+280ft-26ft

Overall

1238

Males

936

M20-24

124

12M→Finish

12.0 - 13.1 mi

Top 10%
×7story building
+14ft-89ft

Overall

663

Males

548

M20-24

73

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#890
2M4M
4194+190
#890 #700
4M6M
4636-10
#700 #710
6M8M
3169+166
#710 #544
8M9.6M
7518-57
#544 #601
9.6M10M
311-30
#601 #631
10M10.5M
05+5
#631 #626
10.5M12M
7715-62
#626 #688
12MFinish
439*+35
#688 #653
TOTALS
240477*+237
#890 #653

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

Passing Visualized

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