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SF MARATHON 1ST HALF 2026

Nathan Kwan

Bib: 20187•M•Age: 35

Danville, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Division (M35-39)
#0 / 582
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
10:28/mi
20:56
→ flat
4M
11:42/mi
44:20
↑ 67↓ 69
6M
12:09/mi
1:08:38
↑ 1231.1%
8M
11:36/mi
1:31:50
↑ 166↓ 531.1%
9.6M
11:36/mi
1:50:24
↑ 68↓ 1931.5%
10M
23:47/mi
1:59:54
↓ 241.1%
10.5M
5:04/mi
2:02:26
↓ 732.7%
12M
18:03/mi
2:29:31
↑ 2803.2%
Finish· 13.11 mi
11:37/mi
2:42:24
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:08:38
Pace11:26 /mi
2nd Half
Distance7.11 mi
Time1:33:46
Pace13:11 /mi
📊Positive Split: 36.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:07:0520:5610:2820:56
10:28
-
4M
4.00 mi07:30:2944:2011:0523:24
11:42
+1:14
6M
6.00 mi07:54:471:08:3811:2624:18
12:09
+0:27
8M
8.00 mi08:17:591:31:5011:2923:12
11:36
-0:33
9.6M
9.60 mi08:36:331:50:2411:3018:34
11:36
0:00
10M
10.00 mi08:46:031:59:5411:599:30
23:47
+12:11
10.5M
10.50 mi08:48:352:02:2611:402:32
5:04
-18:43
12M
12.00 mi09:15:402:29:3112:2827:05
18:03
+12:59
Finish
13.11 mi09:28:332:42:2412:2312:53
11:37
-6:26

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

5:04 /mi

Average Pace

12:23 /mi

Slowest Pace

23:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:32

2% of race

Time at Steady Pace

2:03:17

76% of race

Time at Slower Pace

36:35

23% of race

Average Pace: 12:23 /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 mi07:07:0520:5610:2820:56
10:28
#3877
4M
4.00 mi07:30:2944:2011:0523:24
11:42
#4537
6M
6.00 mi07:54:471:08:3811:2624:18
12:09
#4829
8M
8.00 mi08:17:591:31:5011:2923:12
11:36
#4587
9.6M
9.60 mi08:36:331:50:2411:3018:34
11:36
#4851
10M
10.00 mi08:46:031:59:5411:599:30
23:47
#4901
10.5M
10.50 mi08:48:352:02:2611:402:32
5:04
#4870
12M
12.00 mi09:15:402:29:3112:2827:05
18:03
#5000
Finish
13.11 mi09:28:332:42:2412:2312:53
11:37
#4942
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 74%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:02

Segment Time

13:22/mi

Pace

0.90 mi

Distance

Overall

4871

Men

2902

Division

488

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi387725234255449(Top 83%)3129(Top 86%)519(Top 89%)
4M4.00 mi2.00 mi4537-6602844-321469-445132(Top 78%)3084(Top 85%)506(Top 87%)
6M6.00 mi2.00 mi4829-2922968-124489-205219(Top 79%)3130(Top 86%)509(Top 87%)
8M8.00 mi2.00 mi4587+2422877+91483+64169(Top 63%)2667(Top 74%)444(Top 76%)
9.6M9.60 mi1.60 mi4851-2642974-97492-95546(Top 84%)3170(Top 88%)515(Top 88%)
10M10.00 mi0.40 mi4901-502995-21495-35277(Top 80%)3069(Top 85%)507(Top 87%)
10.5M10.50 mi0.50 mi4870+312982+13493+23359(Top 51%)2197(Top 61%)362(Top 62%)
12M12.00 mi1.50 mi5000-1303021-39499-65449(Top 83%)3129(Top 86%)519(Top 89%)
Finish13.11 mi1.11 mi4942+582985+36497+24616(Top 70%)2750(Top 76%)455(Top 78%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 83%
~flat
+5ft-3ft

Overall

5449

Males

3129

M35-39

519

2M→4M

2.0 - 4.0 mi

Top 78%
×4story building
+67ft-69ft

Overall

5132

Males

3084

M35-39

506

4M→6M

4.0 - 6.0 mi

Top 79%
×9story building
+123ft-9ft

Overall

5219

Males

3130

M35-39

509

6M→8M

6.0 - 8.0 mi

Top 63%
×12story building
+166ft-53ft

Overall

4169

Males

2667

M35-39

444

8M→9.6M

8.0 - 9.6 mi

Top 84%
×13story building
+68ft-193ft

Overall

5546

Males

3170

M35-39

515

9.6M→10M

9.6 - 10.0 mi

Top 80%
×2story building
+0ft-24ft

Overall

5277

Males

3069

M35-39

507

10M→10.5M

10.0 - 10.5 mi

Top 51%
×6story building
+1ft-73ft

Overall

3359

Males

2197

M35-39

362

10.5M→12M

10.5 - 12.0 mi

Top 83%
×21story building
+280ft-26ft

Overall

5449

Males

3129

M35-39

519

12M→Finish

12.0 - 13.1 mi

Top 70%
×7story building
+14ft-89ft

Overall

4616

Males

2750

M35-39

455

Passing Analysis

Category:
Athletes Passed
620*
Passed By
1685
Net Change
-1065
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3877
2M → 4M42702-660#3877#4537
4M → 6M62*354-292#4537#4829
6M → 8M302*60+242#4829#4587
8M → 9.6M29293-264#4587#4851
9.6M → 10M3080-50#4851#4901
10M → 10.5M332+31#4901#4870
10.5M → 12M39*169-130#4870#5000
12M → Finish83*25+58#5000#4942
TOTALS620*1685-1065

* 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