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SF MARATHON 1ST HALF 2026

Nelson Serpa

Bib: 20475•M•Age: 33

Mill Valley, CA

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
11:03/mi
22:06
→ flat
4M
11:45/mi
45:36
↑ 67↓ 69
6M
12:48/mi
1:11:12
↑ 1231.1%
8M
13:02/mi
1:37:15
↑ 166↓ 531.1%
9.6M
13:02/mi
1:58:06
↑ 68↓ 1931.5%
10M
26:12/mi
2:08:34
↓ 241.1%
10.5M
6:56/mi
2:12:02
↓ 732.7%
12M
21:48/mi
2:44:44
↑ 2803.2%
Finish· 13.11 mi
15:07/mi
3:01:30
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:11:12
Pace11:52 /mi
2nd Half
Distance7.11 mi
Time1:50:18
Pace15:31 /mi
📊Positive Split: 54.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:09:3622:0611:0322:06
11:03
-
4M
4.00 mi07:33:0645:3611:2423:30
11:45
+0:42
6M
6.00 mi07:58:421:11:1211:5225:36
12:48
+1:03
8M
8.00 mi08:24:451:37:1512:0926:03
13:02
+0:14
9.6M
9.60 mi08:45:361:58:0612:1820:51
13:02
0:00
10M
10.00 mi08:56:042:08:3412:5110:28
26:12
+13:10
10.5M
10.50 mi08:59:322:12:0212:343:28
6:56
-19:16
12M
12.00 mi09:32:142:44:4413:4432:42
21:48
+14:52
Finish
13.11 mi09:49:003:01:3013:5116:46
15:07
-6:41

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

6:56 /mi

Average Pace

13:51 /mi

Slowest Pace

26:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:28

2% of race

Time at Steady Pace

2:14:52

74% of race

Time at Slower Pace

43:10

24% of race

Average Pace: 13:51 /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 mi07:09:3622:0611:0322:06
11:03
#4789
4M
4.00 mi07:33:0645:3611:2423:30
11:45
#5034
6M
6.00 mi07:58:421:11:1211:5225:36
12:48
#5325
8M
8.00 mi08:24:451:37:1512:0926:03
13:02
#5392
9.6M
9.60 mi08:45:361:58:0612:1820:51
13:02
#5677
10M
10.00 mi08:56:042:08:3412:5110:28
26:12
#5745
10.5M
10.50 mi08:59:322:12:0212:343:28
6:56
#5773
12M
12.00 mi09:32:142:44:4413:4432:42
21:48
#6048
Finish
13.11 mi09:49:003:01:3013:5116:46
15:07
#6096
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 90%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:56

Segment Time

15:29/mi

Pace

0.90 mi

Distance

Overall

5927

Men

3339

Division

713

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi478929556186400(Top 97%)3526(Top 97%)750(Top 97%)
4M4.00 mi2.00 mi5034-2453050-95639-215187(Top 79%)3108(Top 86%)661(Top 86%)
6M6.00 mi2.00 mi5325-2913187-137681-425716(Top 87%)3330(Top 92%)712(Top 92%)
8M8.00 mi2.00 mi5392-673224-37691-105462(Top 83%)3233(Top 89%)682(Top 88%)
9.6M9.60 mi1.60 mi5677-2853322-98710-196298(Top 96%)3502(Top 97%)744(Top 96%)
10M10.00 mi0.40 mi5745-683335-13713-35891(Top 90%)3321(Top 92%)709(Top 92%)
10.5M10.50 mi0.50 mi5773-283342-77136130(Top 93%)3428(Top 95%)726(Top 94%)
12M12.00 mi1.50 mi6048-2753443-101735-226400(Top 97%)3526(Top 97%)750(Top 97%)
Finish13.11 mi1.11 mi6096-483458-15740-56220(Top 95%)3449(Top 95%)734(Top 95%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 97%
~flat
+5ft-3ft

Overall

6400

Males

3526

M30-34

752

2M→4M

2.0 - 4.0 mi

Top 79%
×4story building
+67ft-69ft

Overall

5187

Males

3108

M30-34

664

4M→6M

4.0 - 6.0 mi

Top 87%
×9story building
+123ft-9ft

Overall

5716

Males

3330

M30-34

714

6M→8M

6.0 - 8.0 mi

Top 83%
×12story building
+166ft-53ft

Overall

5462

Males

3233

M30-34

684

8M→9.6M

8.0 - 9.6 mi

Top 96%
×13story building
+68ft-193ft

Overall

6298

Males

3502

M30-34

746

9.6M→10M

9.6 - 10.0 mi

Top 90%
×2story building
+0ft-24ft

Overall

5891

Males

3321

M30-34

711

10M→10.5M

10.0 - 10.5 mi

Top 93%
×6story building
+1ft-73ft

Overall

6130

Males

3428

M30-34

728

10.5M→12M

10.5 - 12.0 mi

Top 97%
×21story building
+280ft-26ft

Overall

6400

Males

3526

M30-34

752

12M→Finish

12.0 - 13.1 mi

Top 95%
×7story building
+14ft-89ft

Overall

6220

Males

3449

M30-34

734

Passing Analysis

Category:
Athletes Passed
294*
Passed By
1601
Net Change
-1307
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4789
2M → 4M93338-245#4789#5034
4M → 6M48*339-291#5034#5325
6M → 8M91*158-67#5325#5392
8M → 9.6M10295-285#5392#5677
9.6M → 10M1785-68#5677#5745
10M → 10.5M735-28#5745#5773
10.5M → 12M8*283-275#5773#6048
12M → Finish20*68-48#6048#6096
TOTALS294*1601-1307

* 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