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SF MARATHON 1ST HALF 2026

Jamaal Roberson

Mountain View, CA

Bib: 14377 M 27

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 32%
Gender (Male)
#0 / 3619
Top 42%
Division (M25-29)
#0 / 796
Top 45%
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
10:15/mi
20:31
→ flat
4M
9:32/mi
39:35
↑ 67↓ 69
6M
9:32/mi
58:40
↑ 123
8M
9:12/mi
1:17:05
↑ 166↓ 53
9.6M
9:12/mi
1:31:49
↑ 68↓ 193
9.87M
26:09/mi
1:38:52
↓ 15
10.5M
3:33/mi
1:41:06
↓ 95
12M
13:09/mi
2:00:50
↑ 280
Finish· 13.11 mi
9:05/mi
2:10:54
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
58:409:47 /mi⚡ faster
2nd Half
1:12:1410:10 /mi+23.1%
Positive split — 23.1% 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
20:3110:152.00 mi20:31
10:15
-
4M
39:359:542.00 mi19:04
9:32
-0:43
6M
58:409:472.00 mi19:05
9:32
0:00
8M
1:17:059:382.00 mi18:25
9:12
-0:20
9.6M
1:31:499:341.60 mi14:44
9:12
0:00
9.87M
1:38:5210:010.27 mi7:03
26:09
+16:57
10.5M
1:41:069:380.63 mi2:14
3:33
-22:36
12M
2:00:5010:041.50 mi19:44
13:09
+9:36
Finish(13.11 mi)
2:10:549:591.11 mi10:04
9:05
-4:04
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

3:33 /mi

Average Pace

9:59 /mi

Slowest Pace

26:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:14

2% of race

Time at Steady Pace

1:41:53

78% of race

Time at Slower Pace

26:47

20% of race

Average Pace: 9:59 /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 31%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:17

Segment Time

10:19/mi

Pace

0.90 mi

Distance

Overall

2024

Men

1451

Division

354

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi3475229851520581454349
4M2.00 mi2700+7751873+425437+7821651580376
6M2.00 mi2446+2541735+138414+2321001520364
8M2.00 mi2152+2941582+153378+3614691130268
9.6M1.60 mi2255-1031604-22381-330051875447
9.87M0.27 mi2229+261590+14377+421751520370
10.5M0.63 mi2208+211579+11375+217671325325
12M1.50 mi2167+411549+30370+520581454349
Finish(13.11 mi)1.11 mi2107+601511+38361+917381273310

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 31%
~flat
+5ft-3ft

Overall

2058

Males

1454

M25-29

350

2M→4M

2.0 - 4.0 mi

Top 33%
×4story building
+67ft-69ft

Overall

2165

Males

1580

M25-29

376

4M→6M

4.0 - 6.0 mi

Top 32%
×9story building
+123ft-9ft

Overall

2100

Males

1520

M25-29

365

6M→8M

6.0 - 8.0 mi

Top 22%
×12story building
+166ft-53ft

Overall

1469

Males

1130

M25-29

269

8M→9.6M

8.0 - 9.6 mi

Top 46%
×13story building
+68ft-193ft

Overall

3005

Males

1875

M25-29

448

9.6M→9.87M

9.6 - 9.9 mi

Top 33%
×1story
+0ft-15ft

Overall

2175

Males

1520

M25-29

371

9.87M→10.5M

9.9 - 10.5 mi

Top 27%
×8story building
+1ft-95ft

Overall

1767

Males

1325

M25-29

326

10.5M→12M

10.5 - 12.0 mi

Top 31%
×21story building
+280ft-26ft

Overall

2058

Males

1454

M25-29

350

12M→Finish

12.0 - 13.1 mi

Top 26%
×7story building
+14ft-89ft

Overall

1738

Males

1273

M25-29

310

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#3475
2M → 4M
4779+775
#3475 → #2700
4M → 6M
11265+254
#2700 → #2446
6M → 8M
12306*+294
#2446 → #2152
8M → 9.6M
14744-103
#2152 → #2255
9.6M → 9.87M
1137+26
#2255 → #2229
9.87M → 10.5M
021+21
#2229 → #2208
10.5M → 12M
5697+41
#2208 → #2167
12M → Finish
969*+60
#2167 → #2107
TOTALS
2501618*+1368
#3475 → #2107

* 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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