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SF MARATHON 1ST HALF 2026

Lawrence Chang

Bib: 17511•M•Age: 37

South San Francisco, 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

Start
0:00:00
Race begins
2M
23:11
Rank: #5509
Start → 2M
11:35/mi
23:11 split
4M
45:28
Rank: #4988 (+521)
2M → 4M
11:09/mi
22:17 split
6M
1:17:14
Rank: #6121 (-1133)
4M → 6M
15:53/mi
31:46 split
8M
1:37:16
Rank: #5393 (+728)
6M → 8M
10:01/mi
20:02 split
9.6M
1:53:17
Rank: #5216 (+177)
8M → 9.6M
10:01/mi
16:01 split
10M
2:01:03
Rank: #5030 (+186)
9.6M → 10M
19:26/mi
7:46 split
10.5M
2:03:49
Rank: #5015 (+15)
10M → 10.5M
5:32/mi
2:46 split
12M
2:28:58
Rank: #4957 (+58)
10.5M → 12M
16:46/mi
25:09 split
Finish· 13.11 mi
2:40:35
Rank: #4780 (+177)
12M → Finish
10:28/mi
11:37 split

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:17:14
Pace12:52 /mi
2nd Half
Distance7.11 mi
Time1:23:21
Pace11:43 /mi
📊Positive Split: 7.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:09:5823:1111:3523:11
11:35
-
4M
4.00 mi07:32:1545:2811:2222:17
11:09
-0:26
6M
6.00 mi08:04:011:17:1412:5231:46
15:53
+4:44
8M
8.00 mi08:24:031:37:1612:0920:02
10:01
-5:52
9.6M
9.60 mi08:40:041:53:1711:4816:01
10:01
0:00
10M
10.00 mi08:47:502:01:0312:067:46
19:26
+9:25
10.5M
10.50 mi08:50:362:03:4911:482:46
5:32
-13:54
12M
12.00 mi09:15:452:28:5812:2525:09
16:46
+11:14
Finish
13.11 mi09:27:222:40:3512:1511:37
10:28
-6:18

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

5:32 /mi

Average Pace

12:15 /mi

Slowest Pace

19:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46

2% of race

Time at Steady Pace

1:33:08

58% of race

Time at Slower Pace

1:04:41

40% of race

Average Pace: 12:15 /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 mi07:09:5823:1111:3523:11
11:35
#5509
4M
4.00 mi07:32:1545:2811:2222:17
11:09
#4988
6M
6.00 mi08:04:011:17:1412:5231:46
15:53
#6121
8M
8.00 mi08:24:031:37:1612:0920:02
10:01
#5393
9.6M
9.60 mi08:40:041:53:1711:4816:01
10:01
#5216
10M
10.00 mi08:47:502:01:0312:067:46
19:26
#5030
10.5M
10.50 mi08:50:362:03:4911:482:46
5:32
#5015
12M
12.00 mi09:15:452:28:5812:2525:09
16:46
#4957
Finish
13.11 mi09:27:222:40:3512:1511:37
10:28
#4780
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 51%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:32

Segment Time

11:42/mi

Pace

0.90 mi

Distance

Overall

3363

Men

2195

Division

369

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi550932435344723(Top 72%)2817(Top 78%)470(Top 81%)
4M4.00 mi2.00 mi4988+5213036+207500+344421(Top 67%)2773(Top 77%)458(Top 79%)
6M6.00 mi2.00 mi6121-11333490-454561-616539(Top 99%)3617(Top 100%)579(Top 99%)
8M8.00 mi2.00 mi5393+7283225+265529+322390(Top 36%)1733(Top 48%)303(Top 52%)
9.6M9.60 mi1.60 mi5216+1773138+87514+154008(Top 61%)2411(Top 67%)405(Top 70%)
10M10.00 mi0.40 mi5030+1863055+83501+133194(Top 49%)2093(Top 58%)351(Top 60%)
10.5M10.50 mi0.50 mi5015+153050+5502-14497(Top 68%)2754(Top 76%)455(Top 78%)
12M12.00 mi1.50 mi4957+582997+53498+44723(Top 72%)2817(Top 78%)470(Top 81%)
Finish13.11 mi1.11 mi4780+1772919+78491+73454(Top 53%)2204(Top 61%)362(Top 62%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 72%
~flat
+5ft-3ft

Overall

4723

Males

2817

M35-39

470

2M→4M

2.0 - 4.0 mi

Top 67%
×4story building
+67ft-69ft

Overall

4421

Males

2773

M35-39

458

4M→6M

4.0 - 6.0 mi

Top 99%
×9story building
+123ft-9ft

Overall

6539

Males

3617

M35-39

580

6M→8M

6.0 - 8.0 mi

Top 36%
×12story building
+166ft-53ft

Overall

2390

Males

1733

M35-39

303

8M→9.6M

8.0 - 9.6 mi

Top 61%
×13story building
+68ft-193ft

Overall

4008

Males

2411

M35-39

405

9.6M→10M

9.6 - 10.0 mi

Top 49%
×2story building
+0ft-24ft

Overall

3194

Males

2093

M35-39

351

10M→10.5M

10.0 - 10.5 mi

Top 68%
×6story building
+1ft-73ft

Overall

4497

Males

2754

M35-39

455

10.5M→12M

10.5 - 12.0 mi

Top 72%
×21story building
+280ft-26ft

Overall

4723

Males

2817

M35-39

470

12M→Finish

12.0 - 13.1 mi

Top 53%
×7story building
+14ft-89ft

Overall

3454

Males

2204

M35-39

362

Passing Analysis

Category:
Athletes Passed
2021*
Passed By
1292
Net Change
+729
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5509
2M → 4M540*19+521#5509#4988
4M → 6M10*1143-1133#4988#6121
6M → 8M728*0+728#6121#5393
8M → 9.6M22245+177#5393#5216
9.6M → 10M1904+186#5216#5030
10M → 10.5M216+15#5030#5015
10.5M → 12M131*73+58#5015#4957
12M → Finish179*2+177#4957#4780
TOTALS2021*1292+729

* 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

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