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SF MARATHON 1ST HALF 2026

Rob Jacobson

Bib: 19565•M•Age: 32

Chicago, IL

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 48%
Gender (Male)
#0 / 3619
Division (M30-34)
#0 / 772
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:46/mi
21:33
→ flat
4M
11:54/mi
45:21
↑ 67↓ 69
6M
10:26/mi
1:06:13
↑ 1231.1%
8M
10:12/mi
1:26:37
↑ 166↓ 531.1%
9.6M
10:12/mi
1:42:57
↑ 68↓ 1931.5%
10M
18:44/mi
1:50:26
↓ 241.1%
10.5M
4:58/mi
1:52:55
↓ 732.7%
12M
13:11/mi
2:12:42
↑ 2803.2%
Finish· 13.11 mi
8:56/mi
2:22:37
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:06:13
Pace11:02 /mi
2nd Half
Distance7.11 mi
Time1:16:24
Pace10:45 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:11:3421:3310:4621:33
10:46
-
4M
4.00 mi07:35:2245:2111:2023:48
11:54
+1:08
6M
6.00 mi07:56:141:06:1311:0220:52
10:26
-1:28
8M
8.00 mi08:16:381:26:3710:5020:24
10:12
-0:14
9.6M
9.60 mi08:32:581:42:5710:4316:20
10:12
0:00
10M
10.00 mi08:40:271:50:2611:037:29
18:44
+8:32
10.5M
10.50 mi08:42:561:52:5510:452:29
4:58
-13:46
12M
12.00 mi09:02:432:12:4211:0419:47
13:11
+8:13
Finish
13.11 mi09:12:382:22:3710:539:55
8:56
-4:15

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

4:58 /mi

Average Pace

10:53 /mi

Slowest Pace

18:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29

2% of race

Time at Steady Pace

1:52:52

79% of race

Time at Slower Pace

27:16

19% of race

Average Pace: 10:53 /mi

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

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi07:11:3421:3310:4621:33
10:46
#4331
4M
4.00 mi07:35:2245:2111:2023:48
11:54
#4946
6M
6.00 mi07:56:141:06:1311:0220:52
10:26
#4237
8M
8.00 mi08:16:381:26:3710:5020:24
10:12
#3734
9.6M
9.60 mi08:32:581:42:5710:4316:20
10:12
#3783
10M
10.00 mi08:40:271:50:2611:037:29
18:44
#3676
10.5M
10.50 mi08:42:561:52:5510:452:29
4:58
#3666
12M
12.00 mi09:02:432:12:4211:0419:47
13:11
#3353
Finish
13.11 mi09:12:382:22:3710:539:55
8:56
#3184
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 42%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:58

Segment Time

11:05/mi

Pace

0.90 mi

Distance

Overall

2792

Men

1882

Division

417

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi433127415762095(Top 32%)1478(Top 41%)329(Top 43%)
4M4.00 mi2.00 mi4946-6153018-277631-555332(Top 81%)3169(Top 88%)675(Top 87%)
6M6.00 mi2.00 mi4237+7092705+313570+613203(Top 49%)2167(Top 60%)453(Top 59%)
8M8.00 mi2.00 mi3734+5032453+252516+542634(Top 40%)1876(Top 52%)403(Top 52%)
9.6M9.60 mi1.60 mi3783-492466-135164258(Top 65%)2549(Top 70%)548(Top 71%)
10M10.00 mi0.40 mi3676+1072408+58508+82831(Top 43%)1892(Top 52%)416(Top 54%)
10.5M10.50 mi0.50 mi3666+102405+3507+13080(Top 47%)2049(Top 57%)442(Top 57%)
12M12.00 mi1.50 mi3353+3132224+181469+382095(Top 32%)1478(Top 41%)329(Top 43%)
Finish13.11 mi1.11 mi3184+1692133+91452+171594(Top 24%)1184(Top 33%)262(Top 34%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 32%
~flat
+5ft-3ft

Overall

2095

Males

1478

M30-34

330

2M→4M

2.0 - 4.0 mi

Top 81%
×4story building
+67ft-69ft

Overall

5332

Males

3169

M30-34

678

4M→6M

4.0 - 6.0 mi

Top 49%
×9story building
+123ft-9ft

Overall

3203

Males

2167

M30-34

455

6M→8M

6.0 - 8.0 mi

Top 40%
×12story building
+166ft-53ft

Overall

2634

Males

1876

M30-34

404

8M→9.6M

8.0 - 9.6 mi

Top 65%
×13story building
+68ft-193ft

Overall

4258

Males

2549

M30-34

549

9.6M→10M

9.6 - 10.0 mi

Top 43%
×2story building
+0ft-24ft

Overall

2831

Males

1892

M30-34

417

10M→10.5M

10.0 - 10.5 mi

Top 47%
×6story building
+1ft-73ft

Overall

3080

Males

2049

M30-34

444

10.5M→12M

10.5 - 12.0 mi

Top 32%
×21story building
+280ft-26ft

Overall

2095

Males

1478

M30-34

330

12M→Finish

12.0 - 13.1 mi

Top 24%
×7story building
+14ft-89ft

Overall

1594

Males

1184

M30-34

262

Passing Analysis

Category:
Athletes Passed
1979*
Passed By
832
Net Change
+1147
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4331
2M → 4M46661-615#4331#4946
4M → 6M713*4+709#4946#4237
6M → 8M511*8+503#4237#3734
8M → 9.6M89138-49#3734#3783
9.6M → 10M1136+107#3783#3676
10M → 10.5M166+10#3676#3666
10.5M → 12M321*8+313#3666#3353
12M → Finish170*1+169#3353#3184
TOTALS1979*832+1147

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

📊

Passing Visuals

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