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SF MARATHON 1ST HALF 2026

Dennis Tsai

Bib: 20669•M•Age: 37

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 48%
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
9:50/mi
19:40
→ flat
4M
10:38/mi
40:55
↑ 67↓ 69
6M
10:40/mi
1:02:15
↑ 1231.1%
8M
12:14/mi
1:26:43
↑ 166↓ 531.1%
9.6M
7:57/mi
1:39:27
↑ 68↓ 1931.5%
10M
18:34/mi
1:46:52
↓ 241.1%
10.5M
5:08/mi
1:49:26
↓ 732.7%
12M
13:53/mi
2:10:16
↑ 2803.2%
Finish· 13.11 mi
10:32/mi
2:21:57
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:02:15
Pace10:23 /mi
2nd Half
Distance7.11 mi
Time1:19:42
Pace11:13 /mi
📊Positive Split: 28.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:09:5819:409:5019:40
9:50
-
4M
4.00 mi07:31:1340:5510:1421:15
10:38
+0:48
6M
6.00 mi07:52:331:02:1510:2321:20
10:40
+0:02
8M
8.00 mi08:17:011:26:4310:5024:28
12:14
+1:34
9.6M
9.60 mi08:29:451:39:2710:2212:44
7:57
-4:17
10M
10.00 mi08:37:101:46:5210:417:25
18:34
+10:37
10.5M
10.50 mi08:39:441:49:2610:252:34
5:08
-13:26
12M
12.00 mi09:00:342:10:1610:5120:50
13:53
+8:45
Finish
13.11 mi09:12:152:21:5710:5011:41
10:32
-3:21

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

5:08 /mi

Average Pace

10:50 /mi

Slowest Pace

18:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:18

11% of race

Time at Steady Pace

1:38:24

69% of race

Time at Slower Pace

28:15

20% of race

Average Pace: 10:50 /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 mi07:09:5819:409:5019:40
9:50
#2774
4M
4.00 mi07:31:1340:5510:1421:15
10:38
#3247
6M
6.00 mi07:52:331:02:1510:2321:20
10:40
#3329
8M
8.00 mi08:17:011:26:4310:5024:28
12:14
#3751
9.6M
9.60 mi08:29:451:39:2710:2212:44
7:57
#3318
10M
10.00 mi08:37:101:46:5210:417:25
18:34
#3245
10.5M
10.50 mi08:39:441:49:2610:252:34
5:08
#3249
12M
12.00 mi09:00:342:10:1610:5120:50
13:53
#3124
Finish
13.11 mi09:12:152:21:5710:5011:41
10:32
#3126
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 43%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:59

Segment Time

11:06/mi

Pace

0.90 mi

Distance

Overall

2812

Men

1893

Division

319

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi277419193322642(Top 40%)1785(Top 49%)301(Top 52%)
4M4.00 mi2.00 mi3247-4732182-263373-413732(Top 57%)2438(Top 67%)411(Top 71%)
6M6.00 mi2.00 mi3329-822233-513733508(Top 53%)2325(Top 64%)388(Top 67%)
8M8.00 mi2.00 mi3751-4222458-225415-424791(Top 73%)2979(Top 82%)496(Top 85%)
9.6M9.60 mi1.60 mi3318+4332228+230374+411489(Top 23%)987(Top 27%)165(Top 28%)
10M10.00 mi0.40 mi3245+732184+44371+32738(Top 42%)1845(Top 51%)307(Top 53%)
10.5M10.50 mi0.50 mi3249-42184372-13497(Top 53%)2278(Top 63%)377(Top 65%)
12M12.00 mi1.50 mi3124+1252102+82355+172642(Top 40%)1785(Top 49%)301(Top 52%)
Finish13.11 mi1.11 mi3126-22105-3353+23513(Top 53%)2235(Top 62%)374(Top 64%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 40%
~flat
+5ft-3ft

Overall

2642

Males

1785

M35-39

301

2M→4M

2.0 - 4.0 mi

Top 57%
×4story building
+67ft-69ft

Overall

3732

Males

2438

M35-39

411

4M→6M

4.0 - 6.0 mi

Top 53%
×9story building
+123ft-9ft

Overall

3508

Males

2325

M35-39

388

6M→8M

6.0 - 8.0 mi

Top 73%
×12story building
+166ft-53ft

Overall

4791

Males

2979

M35-39

496

8M→9.6M

8.0 - 9.6 mi

Top 23%
×13story building
+68ft-193ft

Overall

1489

Males

987

M35-39

165

9.6M→10M

9.6 - 10.0 mi

Top 42%
×2story building
+0ft-24ft

Overall

2738

Males

1845

M35-39

307

10M→10.5M

10.0 - 10.5 mi

Top 53%
×6story building
+1ft-73ft

Overall

3497

Males

2278

M35-39

377

10.5M→12M

10.5 - 12.0 mi

Top 40%
×21story building
+280ft-26ft

Overall

2642

Males

1785

M35-39

301

12M→Finish

12.0 - 13.1 mi

Top 53%
×7story building
+14ft-89ft

Overall

3513

Males

2235

M35-39

374

Passing Analysis

Category:
Athletes Passed
879*
Passed By
1231
Net Change
-352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2774
2M → 4M45518-473#2774#3247
4M → 6M87169-82#3247#3329
6M → 8M15*437-422#3329#3751
8M → 9.6M4385+433#3751#3318
9.6M → 10M8714+73#3318#3245
10M → 10.5M913-4#3245#3249
10.5M → 12M16035+125#3249#3124
12M → Finish38*40-2#3124#3126
TOTALS879*1231-352

* 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