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SF MARATHON 1ST HALF 2026

Justin Duong-Mac

San Jose, CA

Bib: 13519 M 33

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 17%
Gender (Male)
#0 / 3619
Top 25%
Division (M30-34)
#0 / 772
Top 26%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:04/mi
18:09
→ flat
4M
9:12/mi
36:32
↑ 67↓ 69
6M
8:52/mi
54:16
↑ 123
8M
8:31/mi
1:11:18
↑ 166↓ 53
9.6M
8:31/mi
1:24:55
↑ 68↓ 193
10M
15:34/mi
1:31:08
↓ 24
10.5M
4:06/mi
1:33:11
↓ 73
12M
11:19/mi
1:50:10
↑ 280
Finish· 13.11 mi
8:20/mi
1:59:25
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
54:169:03 /mi⚡ faster
2nd Half
1:05:099:10 /mi+20.1%
Positive split — 20.1% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
18:099:042.00 mi18:09
9:04
-
4M
36:329:082.00 mi18:23
9:12
+0:08
6M
54:169:032.00 mi17:44
8:52
-0:20
8M
1:11:188:552.00 mi17:02
8:31
-0:21
9.6M
1:24:558:511.60 mi13:37
8:31
0:00
10M
1:31:089:070.40 mi6:13
15:34
+7:03
10.5M
1:33:118:520.50 mi2:03
4:06
-11:28
12M
1:50:109:111.50 mi16:59
11:19
+7:13
Finish(13.11 mi)
1:59:259:071.11 mi9:15
8:20
-2:59
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

4:06 /mi

Average Pace

9:07 /mi

Slowest Pace

15:34 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:03

2% of race

Time at Steady Pace

1:34:10

79% of race

Time at Slower Pace

23:12

19% of race

Average Pace: 9:07 /mi

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

Heatmap

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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

8:16

Segment Time

9:11/mi

Pace

0.90 mi

Distance

Overall

905

Men

724

Division

164

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi16031207267800635146
4M2.00 mi1638-351243-36270-316931285278
6M2.00 mi1508+1301170+73261+912651005221
8M2.00 mi1235+273994+176218+43834703147
9.6M1.60 mi1373-1381078-84240-2221491415306
10M0.40 mi1330+431047+31229+111005773172
10.5M0.50 mi1310+201034+13226+3831670151
12M1.50 mi1166+144927+107199+27800635146
Finish(13.11 mi)1.11 mi1116+50895+32199909730162

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 12%
~flat
+5ft-3ft

Overall

800

Males

635

M30-34

147

2M→4M

2.0 - 4.0 mi

Top 26%
×4story building
+67ft-69ft

Overall

1693

Males

1285

M30-34

280

4M→6M

4.0 - 6.0 mi

Top 19%
×9story building
+123ft-9ft

Overall

1265

Males

1005

M30-34

222

6M→8M

6.0 - 8.0 mi

Top 13%
×12story building
+166ft-53ft

Overall

834

Males

703

M30-34

148

8M→9.6M

8.0 - 9.6 mi

Top 33%
×13story building
+68ft-193ft

Overall

2149

Males

1415

M30-34

307

9.6M→10M

9.6 - 10.0 mi

Top 15%
×2story building
+0ft-24ft

Overall

1005

Males

773

M30-34

173

10M→10.5M

10.0 - 10.5 mi

Top 13%
×6story building
+1ft-73ft

Overall

831

Males

670

M30-34

152

10.5M→12M

10.5 - 12.0 mi

Top 12%
×21story building
+280ft-26ft

Overall

800

Males

635

M30-34

147

12M→Finish

12.0 - 13.1 mi

Top 14%
×7story building
+14ft-89ft

Overall

909

Males

730

M30-34

162

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#1603
2M → 4M
11984-35
#1603 → #1638
4M → 6M
14144+130
#1638 → #1508
6M → 8M
6279+273
#1508 → #1235
8M → 9.6M
16830-138
#1235 → #1373
9.6M → 10M
952+43
#1373 → #1330
10M → 10.5M
020+20
#1330 → #1310
10.5M → 12M
22166+144
#1310 → #1166
12M → Finish
858*+50
#1166 → #1116
TOTALS
346833*+487
#1603 → #1116

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

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events