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SF MARATHON 1ST HALF 2026

Jonathan Sam

Foster City, CA

Bib: 13921 M 31

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 19%
Gender (Male)
#0 / 3619
Top 27%
Division (M30-34)
#0 / 772
Top 27%
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
8:53/mi
17:46
→ flat
4M
8:47/mi
35:19
↑ 67↓ 69
6M
8:36/mi
52:32
↑ 123
8M
8:22/mi
1:09:16
↑ 166↓ 53
9.6M
8:22/mi
1:22:40
↑ 68↓ 193
10.26M
9:42/mi
1:29:04
↓ 114
10.5M
9:10/mi
1:31:16
→ flat
12M
12:40/mi
1:50:16
↑ 280
Finish· 13.11 mi
9:25/mi
2:00:43
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
52:328:45 /mi⚡ faster
2nd Half
1:08:119:35 /mi+29.8%
Positive split — 29.8% 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
17:468:532.00 mi17:46
8:53
-
4M
35:198:502.00 mi17:33
8:47
-0:06
6M
52:328:452.00 mi17:13
8:36
-0:11
8M
1:09:168:402.00 mi16:44
8:22
-0:14
9.6M
1:22:408:371.60 mi13:24
8:22
0:00
10.26M
1:29:048:410.66 mi6:24
9:42
+1:20
10.5M
1:31:168:420.24 mi2:12
9:10
-0:32
12M
1:50:169:111.50 mi19:00
12:40
+3:30
Finish(13.11 mi)
2:00:439:131.11 mi10:27
9:25
-3:15
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

8:22 /mi

Average Pace

9:13 /mi

Slowest Pace

12:40 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:35:19

79% of race

Time at Slower Pace

25:24

21% of race

Average Pace: 9:12 /mi

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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 19%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:36

Segment Time

9:33/mi

Pace

0.90 mi

Distance

Overall

1253

Men

978

Division

224

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi1366105723016861222276
4M2.00 mi1235+131971+86210+201135906197
6M2.00 mi1108+127884+87189+21948766167
8M2.00 mi937+171769+115167+22700600125
9.6M1.60 mi1042-105838-69187-2019521291280
10.26M0.66 mi1036+6831+71871242950216
10.5M0.24 mi1043-7834-3185+215651192269
12M1.50 mi1185-142941-107203-1816861222276
Finish(13.11 mi)1.11 mi1230-45974-33212-921511527346

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 26%
~flat
+5ft-3ft

Overall

1686

Males

1222

M30-34

277

2M→4M

2.0 - 4.0 mi

Top 17%
×4story building
+67ft-69ft

Overall

1135

Males

906

M30-34

198

4M→6M

4.0 - 6.0 mi

Top 14%
×9story building
+123ft-9ft

Overall

948

Males

766

M30-34

168

6M→8M

6.0 - 8.0 mi

Top 11%
×12story building
+166ft-53ft

Overall

700

Males

600

M30-34

126

8M→9.6M

8.0 - 9.6 mi

Top 30%
×13story building
+68ft-193ft

Overall

1952

Males

1291

M30-34

281

9.6M→10.26M

9.6 - 10.3 mi

Top 19%
×9story building
+0ft-114ft

Overall

1242

Males

950

M30-34

217

10.26M→10.5M

10.3 - 10.5 mi

Top 24%
~flat
+1ft-0ft

Overall

1565

Males

1192

M30-34

270

10.5M→12M

10.5 - 12.0 mi

Top 26%
×21story building
+280ft-26ft

Overall

1686

Males

1222

M30-34

277

12M→Finish

12.0 - 13.1 mi

Top 33%
×7story building
+14ft-89ft

Overall

2151

Males

1527

M30-34

346

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#1366
2M → 4M
39170+131
#1366 → #1235
4M → 6M
10137+127
#1235 → #1108
6M → 8M
13184+171
#1108 → #937
8M → 9.6M
12823-105
#937 → #1042
9.6M → 10.26M
1723+6
#1042 → #1036
10.26M → 10.5M
114-7
#1036 → #1043
10.5M → 12M
16119-142
#1043 → #1185
12M → Finish
6924*-45
#1185 → #1230
TOTALS
448584*+136
#1366 → #1230

* 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

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