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SF MARATHON 1ST HALF 2026

Corey Chow

Bib: 14051•M•Age: 31

Walnut, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 10%
Gender (Male)
#0 / 3619
Top 15%
Division (M30-34)
#0 / 772
Top 16%
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
8:15/mi
16:31
→ flat
4M
8:32/mi
33:34
↑ 67↓ 69
6M
8:19/mi
50:13
↑ 1231.1%
8M
8:00/mi
1:06:12
↑ 166↓ 531.1%
9.6M
8:00/mi
1:19:00
↑ 68↓ 1931.5%
10M
15:49/mi
1:25:19
↓ 241.1%
10.5M
4:04/mi
1:27:21
↓ 732.7%
12M
11:09/mi
1:44:04
↑ 2803.2%
Finish· 13.11 mi
8:01/mi
1:52:57
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time50:13
Pace8:22 /mi
2nd Half
Distance7.11 mi
Time1:02:44
Pace8:49 /mi
📊Positive Split: 24.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:51:1916:318:1516:31
8:15
-
4M
4.00 mi07:08:2233:348:2417:03
8:32
+0:17
6M
6.00 mi07:25:0150:138:2216:39
8:19
-0:13
8M
8.00 mi07:41:001:06:128:1715:59
8:00
-0:19
9.6M
9.60 mi07:53:481:19:008:1412:48
8:00
0:00
10M
10.00 mi08:00:071:25:198:326:19
15:49
+7:49
10.5M
10.50 mi08:02:091:27:218:192:02
4:04
-11:45
12M
12.00 mi08:18:521:44:048:4016:43
11:09
+7:05
Finish
13.11 mi08:27:451:52:578:378:53
8:01
-3:08

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

4:04 /mi

Average Pace

8:37 /mi

Slowest Pace

15:49 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02

2% of race

Time at Steady Pace

1:27:53

78% of race

Time at Slower Pace

23:02

20% of race

Average Pace: 8:37 /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 mi06:51:1916:318:1516:31
8:15
#690
4M
4.00 mi07:08:2233:348:2417:03
8:32
#764
6M
6.00 mi07:25:0150:138:2216:39
8:19
#719
8M
8.00 mi07:41:001:06:128:1715:59
8:00
#600
9.6M
9.60 mi07:53:481:19:008:1412:48
8:00
#691
10M
10.00 mi08:00:071:25:198:326:19
15:49
#702
10.5M
10.50 mi08:02:091:27:218:192:02
4:04
#698
12M
12.00 mi08:18:521:44:048:4016:43
11:09
#680
Finish
13.11 mi08:27:451:52:578:378:53
8:01
#641
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 15%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:21

Segment Time

9:17/mi

Pace

0.90 mi

Distance

Overall

975

Men

774

Division

176

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi690576124665(Top 10%)533(Top 15%)119(Top 15%)
4M4.00 mi2.00 mi764-74630-54139-15893(Top 14%)725(Top 20%)157(Top 20%)
6M6.00 mi2.00 mi719+45591+39135+4697(Top 11%)581(Top 16%)124(Top 16%)
8M8.00 mi2.00 mi600+119507+84110+25457(Top 7%)399(Top 11%)85(Top 11%)
9.6M9.60 mi1.60 mi691-91569-62128-181536(Top 23%)1022(Top 28%)230(Top 30%)
10M10.00 mi0.40 mi702-11578-9131-31121(Top 17%)861(Top 24%)197(Top 26%)
10.5M10.50 mi0.50 mi698+4574+4131732(Top 11%)603(Top 17%)132(Top 17%)
12M12.00 mi1.50 mi680+18556+18127+4665(Top 10%)533(Top 15%)119(Top 15%)
Finish13.11 mi1.11 mi641+39531+25124+3603(Top 9%)501(Top 14%)108(Top 14%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 10%
~flat
+5ft-3ft

Overall

665

Males

533

M30-34

120

2M→4M

2.0 - 4.0 mi

Top 14%
×4story building
+67ft-69ft

Overall

893

Males

725

M30-34

158

4M→6M

4.0 - 6.0 mi

Top 11%
×9story building
+123ft-9ft

Overall

697

Males

581

M30-34

125

6M→8M

6.0 - 8.0 mi

Top 7%
×12story building
+166ft-53ft

Overall

457

Males

399

M30-34

86

8M→9.6M

8.0 - 9.6 mi

Top 23%
×13story building
+68ft-193ft

Overall

1536

Males

1022

M30-34

231

9.6M→10M

9.6 - 10.0 mi

Top 17%
×2story building
+0ft-24ft

Overall

1121

Males

861

M30-34

198

10M→10.5M

10.0 - 10.5 mi

Top 11%
×6story building
+1ft-73ft

Overall

732

Males

603

M30-34

133

10.5M→12M

10.5 - 12.0 mi

Top 10%
×21story building
+280ft-26ft

Overall

665

Males

533

M30-34

120

12M→Finish

12.0 - 13.1 mi

Top 9%
×7story building
+14ft-89ft

Overall

603

Males

501

M30-34

108

Passing Analysis

Category:
Athletes Passed
339*
Passed By
290
Net Change
+49
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#690
2M → 4M31105-74#690#764
4M → 6M6924+45#764#719
6M → 8M13213+119#719#600
8M → 9.6M9100-91#600#691
9.6M → 10M718-11#691#702
10M → 10.5M40+4#702#698
10.5M → 12M4325+18#698#680
12M → Finish44*5+39#680#641
TOTALS339*290+49

* 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