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SF MARATHON 1ST HALF 2026

Marcin Kempski

Bib: 13548•M•Age: 33

Fort Lauderdale, FL

0:00
0:00
/ mi
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Overall
#0 / 6575
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
10:27/mi
20:54
→ flat
4M
10:42/mi
42:17
↑ 67↓ 69
6M
11:02/mi
1:04:21
↑ 1231.1%
8M
11:44/mi
1:27:50
↑ 166↓ 531.1%
9.6M
11:44/mi
1:46:37
↑ 68↓ 1931.5%
10M
24:49/mi
1:56:32
↓ 241.1%
10.5M
6:18/mi
1:59:41
↓ 732.7%
12M
18:19/mi
2:27:10
↑ 2803.2%
Finish· 13.11 mi
12:45/mi
2:41:19
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:04:21
Pace10:44 /mi
2nd Half
Distance7.11 mi
Time1:36:58
Pace13:38 /mi
📊Positive Split: 50.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:56:0020:5410:2720:54
10:27
-
4M
4.00 mi07:17:2342:1710:3421:23
10:42
+0:15
6M
6.00 mi07:39:271:04:2110:4422:04
11:02
+0:20
8M
8.00 mi08:02:561:27:5010:5923:29
11:44
+0:42
9.6M
9.60 mi08:21:431:46:3711:0618:47
11:44
0:00
10M
10.00 mi08:31:381:56:3211:399:55
24:49
+13:05
10.5M
10.50 mi08:34:471:59:4111:243:09
6:18
-18:31
12M
12.00 mi09:02:162:27:1012:1627:29
18:19
+12:01
Finish
13.11 mi09:16:252:41:1912:1814:09
12:45
-5:34

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

6:18 /mi

Average Pace

12:18 /mi

Slowest Pace

24:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:09

2% of race

Time at Steady Pace

2:00:46

75% of race

Time at Slower Pace

37:24

23% of race

Average Pace: 12:18 /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 mi06:56:0020:5410:2720:54
10:27
#3847
4M
4.00 mi07:17:2342:1710:3421:23
10:42
#3808
6M
6.00 mi07:39:271:04:2110:4422:04
11:02
#3827
8M
8.00 mi08:02:561:27:5010:5923:29
11:44
#3926
9.6M
9.60 mi08:21:431:46:3711:0618:47
11:44
#4298
10M
10.00 mi08:31:381:56:3211:399:55
24:49
#4473
10.5M
10.50 mi08:34:471:59:4111:243:09
6:18
#4512
12M
12.00 mi09:02:162:27:1012:1627:29
18:19
#4797
Finish
13.11 mi09:16:252:41:1912:1814:09
12:45
#4848
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 85%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:04

Segment Time

14:31/mi

Pace

0.90 mi

Distance

Overall

5567

Men

3195

Division

685

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi384725035255602(Top 85%)3188(Top 88%)685(Top 89%)
4M4.00 mi2.00 mi3808+392483+20520+53836(Top 58%)2496(Top 69%)514(Top 67%)
6M6.00 mi2.00 mi3827-192494-11521-13938(Top 60%)2541(Top 70%)539(Top 70%)
8M8.00 mi2.00 mi3926-992557-63536-154314(Top 66%)2747(Top 76%)592(Top 77%)
9.6M9.60 mi1.60 mi4298-3722719-162572-365653(Top 86%)3225(Top 89%)700(Top 91%)
10M10.00 mi0.40 mi4473-1752788-69592-205563(Top 85%)3183(Top 88%)685(Top 89%)
10.5M10.50 mi0.50 mi4512-392808-20597-55686(Top 86%)3258(Top 90%)686(Top 89%)
12M12.00 mi1.50 mi4797-2852929-121624-275602(Top 85%)3188(Top 88%)685(Top 89%)
Finish13.11 mi1.11 mi4848-512943-14635-115434(Top 83%)3095(Top 86%)655(Top 85%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 85%
~flat
+5ft-3ft

Overall

5602

Males

3188

M30-34

687

2M→4M

2.0 - 4.0 mi

Top 58%
×4story building
+67ft-69ft

Overall

3836

Males

2496

M30-34

517

4M→6M

4.0 - 6.0 mi

Top 60%
×9story building
+123ft-9ft

Overall

3938

Males

2541

M30-34

541

6M→8M

6.0 - 8.0 mi

Top 66%
×12story building
+166ft-53ft

Overall

4314

Males

2747

M30-34

594

8M→9.6M

8.0 - 9.6 mi

Top 86%
×13story building
+68ft-193ft

Overall

5653

Males

3225

M30-34

702

9.6M→10M

9.6 - 10.0 mi

Top 85%
×2story building
+0ft-24ft

Overall

5563

Males

3183

M30-34

687

10M→10.5M

10.0 - 10.5 mi

Top 86%
×6story building
+1ft-73ft

Overall

5686

Males

3258

M30-34

688

10.5M→12M

10.5 - 12.0 mi

Top 85%
×21story building
+280ft-26ft

Overall

5602

Males

3188

M30-34

687

12M→Finish

12.0 - 13.1 mi

Top 83%
×7story building
+14ft-89ft

Overall

5434

Males

3095

M30-34

655

Passing Analysis

Category:
Athletes Passed
510*
Passed By
1511
Net Change
-1001
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3847
2M → 4M186147+39#3847#3808
4M → 6M118*137-19#3808#3827
6M → 8M109*208-99#3827#3926
8M → 9.6M5377-372#3926#4298
9.6M → 10M13188-175#4298#4473
10M → 10.5M544-39#4473#4512
10.5M → 12M26*311-285#4512#4797
12M → Finish48*99-51#4797#4848
TOTALS510*1511-1001

* 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