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SF MARATHON 1ST HALF 2026

Sean Cheng

Bib: 16408•M•Age: 25

Arvada, CO

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 20%
Gender (Male)
#0 / 3619
Top 29%
Division (M25-29)
#0 / 796
Top 32%
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
8:41/mi
17:23
→ flat
4M
8:58/mi
35:18
↑ 67↓ 69
6M
8:58/mi
53:14
↑ 1231.1%
8M
8:29/mi
1:10:11
↑ 166↓ 531.1%
9.6M
8:29/mi
1:23:45
↑ 68↓ 1931.5%
10M
16:34/mi
1:30:22
↓ 241.1%
10.5M
4:24/mi
1:32:34
↓ 732.7%
12M
12:31/mi
1:51:21
↑ 2803.2%
Finish· 13.11 mi
9:29/mi
2:01:52
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time53:14
Pace8:52 /mi
2nd Half
Distance7.11 mi
Time1:08:38
Pace9:39 /mi
📊Positive Split: 28.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:00:5217:238:4117:23
8:41
-
4M
4.00 mi07:18:4735:188:5017:55
8:58
+0:17
6M
6.00 mi07:36:4353:148:5217:56
8:58
0:00
8M
8.00 mi07:53:401:10:118:4616:57
8:29
-0:29
9.6M
9.60 mi08:07:141:23:458:4313:34
8:29
0:00
10M
10.00 mi08:13:511:30:229:026:37
16:34
+8:05
10.5M
10.50 mi08:16:031:32:348:492:12
4:24
-12:10
12M
12.00 mi08:34:501:51:219:1718:47
12:31
+8:07
Finish
13.11 mi08:45:212:01:529:1810:31
9:29
-3:02

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

4:24 /mi

Average Pace

9:18 /mi

Slowest Pace

16:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:12

2% of race

Time at Steady Pace

1:34:16

77% of race

Time at Slower Pace

25:24

21% of race

Average Pace: 9:18 /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 mi07:00:5217:238:4117:23
8:41
#1115
4M
4.00 mi07:18:4735:188:5017:55
8:58
#1231
6M
6.00 mi07:36:4353:148:5217:56
8:58
#1262
8M
8.00 mi07:53:401:10:118:4616:57
8:29
#1080
9.6M
9.60 mi08:07:141:23:458:4313:34
8:29
#1217
10M
10.00 mi08:13:511:30:229:026:37
16:34
#1217
10.5M
10.50 mi08:16:031:32:348:492:12
4:24
#1225
12M
12.00 mi08:34:501:51:219:1718:47
12:31
#1283
Finish
13.11 mi08:45:212:01:529:1810:31
9:29
#1330
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 23%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:49

Segment Time

9:48/mi

Pace

0.90 mi

Distance

Overall

1495

Men

1141

Division

279

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi11158822221578(Top 24%)1156(Top 32%)273(Top 34%)
4M4.00 mi2.00 mi1231-116968-86233-111386(Top 21%)1083(Top 30%)256(Top 32%)
6M6.00 mi2.00 mi1262-31996-28235-21377(Top 21%)1071(Top 30%)261(Top 33%)
8M8.00 mi2.00 mi1080+182876+120209+26797(Top 12%)673(Top 19%)165(Top 21%)
9.6M9.60 mi1.60 mi1217-137969-93234-252094(Top 32%)1379(Top 38%)328(Top 41%)
10M10.00 mi0.40 mi1217968+1235-11560(Top 24%)1168(Top 32%)278(Top 35%)
10.5M10.50 mi0.50 mi1225-8975-7238-31546(Top 24%)1184(Top 33%)291(Top 37%)
12M12.00 mi1.50 mi1283-581009-34247-91578(Top 24%)1156(Top 32%)273(Top 34%)
Finish13.11 mi1.11 mi1330-471039-30252-52218(Top 34%)1557(Top 43%)367(Top 46%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 24%
~flat
+5ft-3ft

Overall

1578

Males

1156

M25-29

273

2M→4M

2.0 - 4.0 mi

Top 21%
×4story building
+67ft-69ft

Overall

1386

Males

1083

M25-29

256

4M→6M

4.0 - 6.0 mi

Top 21%
×9story building
+123ft-9ft

Overall

1377

Males

1071

M25-29

261

6M→8M

6.0 - 8.0 mi

Top 12%
×12story building
+166ft-53ft

Overall

797

Males

673

M25-29

165

8M→9.6M

8.0 - 9.6 mi

Top 32%
×13story building
+68ft-193ft

Overall

2094

Males

1379

M25-29

328

9.6M→10M

9.6 - 10.0 mi

Top 24%
×2story building
+0ft-24ft

Overall

1560

Males

1168

M25-29

279

10M→10.5M

10.0 - 10.5 mi

Top 24%
×6story building
+1ft-73ft

Overall

1546

Males

1184

M25-29

292

10.5M→12M

10.5 - 12.0 mi

Top 24%
×21story building
+280ft-26ft

Overall

1578

Males

1156

M25-29

273

12M→Finish

12.0 - 13.1 mi

Top 34%
×7story building
+14ft-89ft

Overall

2218

Males

1557

M25-29

367

Passing Analysis

Category:
Athletes Passed
385*
Passed By
600
Net Change
-215
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1115
2M → 4M24140-116#1115#1231
4M → 6M5687-31#1231#1262
6M → 8M20422+182#1262#1080
8M → 9.6M21158-137#1080#1217
9.6M → 10M23230#1217#1217
10M → 10.5M210-8#1217#1225
10.5M → 12M3088-58#1225#1283
12M → Finish25*72-47#1283#1330
TOTALS385*600-215

* 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