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SF MARATHON 1ST HALF 2026

Shih-Hao Tsai

Bib: 18972•M•Age: 39

San Jose, 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
12:16/mi
24:32
→ flat
4M
15:05/mi
54:42
↑ 67↓ 69
6M
16:46/mi
1:28:15
↑ 1231.1%
8M
20:04/mi
2:08:23
↑ 166↓ 531.1%
9.6M
21:16/mi
2:42:24
↑ 68↓ 1931.5%
10M
33:25/mi
2:55:45
↓ 241.1%
10.5M
33:25/mi
3:12:28
↓ 732.7%
12M
10:08/mi
3:27:40
↑ 2803.2%
Finish· 13.11 mi
10:08/mi
3:38:54
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:28:15
Pace14:43 /mi
2nd Half
Distance7.11 mi
Time2:10:39
Pace18:23 /mi
📊Positive Split: 48.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:59:1224:3212:1624:32
12:16
-
4M
4.00 mi07:29:2254:4213:4130:10
15:05
+2:49
6M
6.00 mi08:02:551:28:1514:4333:33
16:46
+1:41
8M
8.00 mi08:43:032:08:2316:0340:08
20:04
+3:18
9.6M
9.60 mi09:17:042:42:2416:5534:01
21:16
+1:12
10M
10.00 mi09:30:252:55:4517:3513:21
33:25
+12:09
10.5M
10.50 mi09:47:083:12:2818:2016:43
33:25
0:00
12M
12.00 mi10:02:203:27:4017:1815:12
10:08
-23:17
Finish
13.11 mi10:13:343:38:5416:4211:14
10:08
0:00

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

10:08 /mi

Average Pace

16:42 /mi

Slowest Pace

33:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:58

23% of race

Time at Steady Pace

1:43:51

47% of race

Time at Slower Pace

1:04:05

29% of race

Average Pace: 16:42 /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 mi06:59:1224:3212:1624:32
12:16
#6091
4M
4.00 mi07:29:2254:4213:4130:10
15:05
#6466
6M
6.00 mi08:02:551:28:1514:4333:33
16:46
#6518
8M
8.00 mi08:43:032:08:2316:0340:08
20:04
#6583
9.6M
9.60 mi09:17:042:42:2416:5534:01
21:16
#6589
10M
10.00 mi09:30:252:55:4517:3513:21
33:25
#6589
10.5M
10.50 mi09:47:083:12:2818:2016:43
33:25
#6589
12M
12.00 mi10:02:203:27:4017:1815:12
10:08
#6580
Finish
13.11 mi10:13:343:38:5416:4211:14
10:08
#6558
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 99%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

30:04

Segment Time

33:25/mi

Pace

0.90 mi

Distance

Overall

6527

Men

3598

Division

581

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi60913465559269(Top 4%)220(Top 6%)37(Top 6%)
4M4.00 mi2.00 mi6466-3753593-128576-176531(Top 99%)3617(Top 100%)579(Top 99%)
6M6.00 mi2.00 mi6518-523610-17580-46582(Top 100%)3632(Top 100%)581(Top 100%)
8M8.00 mi2.00 mi6583-653625-15581-16593(Top 100%)3627(Top 100%)582(Top 100%)
9.6M9.60 mi1.60 mi6589-63626-1582-16590(Top 100%)3626(Top 100%)582(Top 100%)
10M10.00 mi0.40 mi658936265826531(Top 99%)3588(Top 99%)579(Top 99%)
10.5M10.50 mi0.50 mi658936265826594(Top 100%)3627(Top 100%)582(Top 100%)
12M12.00 mi1.50 mi6580+93623+3582269(Top 4%)220(Top 6%)37(Top 6%)
Finish13.11 mi1.11 mi6558+223615+85823032(Top 46%)1981(Top 55%)320(Top 55%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 4%
~flat
+5ft-3ft

Overall

269

Males

220

M35-39

37

2M→4M

2.0 - 4.0 mi

Top 99%
×4story building
+67ft-69ft

Overall

6531

Males

3617

M35-39

580

4M→6M

4.0 - 6.0 mi

Top 100%
×9story building
+123ft-9ft

Overall

6582

Males

3632

M35-39

584

6M→8M

6.0 - 8.0 mi

Top 100%
×12story building
+166ft-53ft

Overall

6593

Males

3627

M35-39

583

8M→9.6M

8.0 - 9.6 mi

Top 100%
×13story building
+68ft-193ft

Overall

6590

Males

3626

M35-39

582

9.6M→10M

9.6 - 10.0 mi

Top 99%
×2story building
+0ft-24ft

Overall

6531

Males

3588

M35-39

579

10M→10.5M

10.0 - 10.5 mi

Top 100%
×6story building
+1ft-73ft

Overall

6594

Males

3627

M35-39

582

10.5M→12M

10.5 - 12.0 mi

Top 4%
×21story building
+280ft-26ft

Overall

269

Males

220

M35-39

37

12M→Finish

12.0 - 13.1 mi

Top 46%
×7story building
+14ft-89ft

Overall

3032

Males

1981

M35-39

320

Passing Analysis

Category:
Athletes Passed
66*
Passed By
533
Net Change
-467
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6091
2M → 4M7*382-375#6091#6466
4M → 6M16*68-52#6466#6518
6M → 8M7*72-65#6518#6583
8M → 9.6M5*11-6#6583#6589
9.6M → 10M000#6589#6589
10M → 10.5M000#6589#6589
10.5M → 12M9*0+9#6589#6580
12M → Finish22*0+22#6580#6558
TOTALS66*533-467

* 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