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SF MARATHON 1ST HALF 2026

Calvin Chu

Bib: 12801•M•Age: 38

Cupertino, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 3%
Gender (Male)
#0 / 3619
Top 5%
Division (M35-39)
#0 / 582
Top 5%
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
7:35/mi
15:11
→ flat
4M
7:45/mi
30:40
↑ 67↓ 69
6M
7:37/mi
45:55
↑ 1231.1%
8M
7:03/mi
1:00:01
↑ 166↓ 531.1%
9.6M
7:03/mi
1:11:18
↑ 68↓ 1931.5%
10M
13:11/mi
1:16:34
↓ 241.1%
10.5M
3:40/mi
1:18:24
↓ 732.7%
12M
9:58/mi
1:33:21
↑ 2803.2%
Finish· 13.11 mi
7:13/mi
1:41:21
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time45:55
Pace7:39 /mi
2nd Half
Distance7.11 mi
Time55:26
Pace7:48 /mi
📊Positive Split: 20.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:45:5215:117:3515:11
7:35
-
4M
4.00 mi07:01:2130:407:4015:29
7:45
+0:10
6M
6.00 mi07:16:3645:557:3915:15
7:37
-0:08
8M
8.00 mi07:30:421:00:017:3014:06
7:03
-0:34
9.6M
9.60 mi07:41:591:11:187:2611:17
7:03
0:00
10M
10.00 mi07:47:151:16:347:395:16
13:11
+6:08
10.5M
10.50 mi07:49:051:18:247:281:50
3:40
-9:31
12M
12.00 mi08:04:021:33:217:4714:57
9:58
+6:18
Finish
13.11 mi08:12:021:41:217:448:00
7:13
-2:45

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

3:40 /mi

Average Pace

7:44 /mi

Slowest Pace

13:11 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:50

2% of race

Time at Steady Pace

1:19:18

78% of race

Time at Slower Pace

20:13

20% of race

Average Pace: 7:44 /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 mi06:45:5215:117:3515:11
7:35
#290
4M
4.00 mi07:01:2130:407:4015:29
7:45
#289
6M
6.00 mi07:16:3645:557:3915:15
7:37
#269
8M
8.00 mi07:30:421:00:017:3014:06
7:03
#193
9.6M
9.60 mi07:41:591:11:187:2611:17
7:03
#208
10M
10.00 mi07:47:151:16:347:395:16
13:11
#199
10.5M
10.50 mi07:49:051:18:247:281:50
3:40
#198
12M
12.00 mi08:04:021:33:217:4714:57
9:58
#194
Finish
13.11 mi08:12:021:41:217:448:00
7:13
#176
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 3%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

7:06

Segment Time

7:53/mi

Pace

0.90 mi

Distance

Overall

166

Men

154

Division

31

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi29025145237(Top 4%)196(Top 5%)30(Top 5%)
4M4.00 mi2.00 mi289+1249+244+1301(Top 5%)261(Top 7%)44(Top 8%)
6M6.00 mi2.00 mi269+20233+1639+5255(Top 4%)221(Top 6%)41(Top 7%)
8M8.00 mi2.00 mi193+76174+5931+8111(Top 2%)103(Top 3%)19(Top 3%)
9.6M9.60 mi1.60 mi208-15187-1332-1703(Top 11%)519(Top 14%)79(Top 14%)
10M10.00 mi0.40 mi199+9179+830+2209(Top 3%)169(Top 5%)31(Top 5%)
10.5M10.50 mi0.50 mi198+1178+130207(Top 3%)192(Top 5%)35(Top 6%)
12M12.00 mi1.50 mi194+4171+729+1237(Top 4%)196(Top 5%)30(Top 5%)
Finish13.11 mi1.11 mi176+18163+829169(Top 3%)158(Top 4%)27(Top 5%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 4%
~flat
+5ft-3ft

Overall

237

Males

196

M35-39

30

2M→4M

2.0 - 4.0 mi

Top 5%
×4story building
+67ft-69ft

Overall

301

Males

261

M35-39

44

4M→6M

4.0 - 6.0 mi

Top 4%
×9story building
+123ft-9ft

Overall

255

Males

221

M35-39

41

6M→8M

6.0 - 8.0 mi

Top 2%
×12story building
+166ft-53ft

Overall

111

Males

103

M35-39

19

8M→9.6M

8.0 - 9.6 mi

Top 11%
×13story building
+68ft-193ft

Overall

703

Males

519

M35-39

79

9.6M→10M

9.6 - 10.0 mi

Top 3%
×2story building
+0ft-24ft

Overall

209

Males

169

M35-39

31

10M→10.5M

10.0 - 10.5 mi

Top 3%
×6story building
+1ft-73ft

Overall

207

Males

192

M35-39

35

10.5M→12M

10.5 - 12.0 mi

Top 4%
×21story building
+280ft-26ft

Overall

237

Males

196

M35-39

30

12M→Finish

12.0 - 13.1 mi

Top 3%
×7story building
+14ft-89ft

Overall

169

Males

158

M35-39

27

Passing Analysis

Category:
Athletes Passed
181*
Passed By
67
Net Change
+114
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#290
2M → 4M1615+1#290#289
4M → 6M277+20#289#269
6M → 8M760+76#269#193
8M → 9.6M1429-15#193#208
9.6M → 10M90+9#208#199
10M → 10.5M10+1#199#198
10.5M → 12M1713+4#198#194
12M → Finish21*3+18#194#176
TOTALS181*67+114

* 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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Questions or issues regarding timing data?

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events