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SF MARATHON 1ST HALF 2026

Marcus Cornelious

Bib: 12391•M•Age: 29

Hercules, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 42%
Gender (Male)
#0 / 3619
Division (M25-29)
#0 / 796
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
9:37/mi
19:14
→ flat
4M
9:49/mi
38:51
↑ 67↓ 69
6M
10:33/mi
59:58
↑ 1231.1%
8M
9:31/mi
1:19:01
↑ 166↓ 531.1%
9.6M
9:31/mi
1:34:15
↑ 68↓ 1931.5%
10M
19:06/mi
1:41:53
↓ 241.1%
10.5M
4:48/mi
1:44:17
↓ 732.7%
12M
15:05/mi
2:06:54
↑ 2803.2%
Finish· 13.11 mi
10:12/mi
2:18:13
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time59:58
Pace10:00 /mi
2nd Half
Distance7.11 mi
Time1:18:15
Pace11:00 /mi
📊Positive Split: 30.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:56:4119:149:3719:14
9:37
-
4M
4.00 mi07:16:1838:519:4319:37
9:49
+0:12
6M
6.00 mi07:37:2559:5810:0021:07
10:33
+0:44
8M
8.00 mi07:56:281:19:019:5319:03
9:31
-1:02
9.6M
9.60 mi08:11:421:34:159:4915:14
9:31
0:00
10M
10.00 mi08:19:201:41:5310:117:38
19:06
+9:35
10.5M
10.50 mi08:21:441:44:179:562:24
4:48
-14:18
12M
12.00 mi08:44:212:06:5410:3522:37
15:05
+10:17
Finish
13.11 mi08:55:402:18:1310:3311:19
10:12
-4:53

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

4:48 /mi

Average Pace

10:33 /mi

Slowest Pace

19:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24

2% of race

Time at Steady Pace

1:45:34

76% of race

Time at Slower Pace

30:15

22% of race

Average Pace: 10:33 /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 mi06:56:4119:149:3719:14
9:37
#2448
4M
4.00 mi07:16:1838:519:4319:37
9:49
#2460
6M
6.00 mi07:37:2559:5810:0021:07
10:33
#2755
8M
8.00 mi07:56:281:19:019:5319:03
9:31
#2471
9.6M
9.60 mi08:11:421:34:159:4915:14
9:31
#2572
10M
10.00 mi08:19:201:41:5310:117:38
19:06
#2595
10.5M
10.50 mi08:21:441:44:179:562:24
4:48
#2589
12M
12.00 mi08:44:212:06:5410:3522:37
15:05
#2747
Finish
13.11 mi08:55:402:18:1310:3311:19
10:12
#2760
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

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

10:02

Segment Time

11:09/mi

Pace

0.90 mi

Distance

Overall

2860

Men

1920

Division

454

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi244817394103601(Top 55%)2268(Top 63%)530(Top 67%)
4M4.00 mi2.00 mi2460-121738+14102539(Top 39%)1787(Top 49%)425(Top 53%)
6M6.00 mi2.00 mi2755-2951907-169448-383394(Top 52%)2260(Top 62%)538(Top 68%)
8M8.00 mi2.00 mi2471+2841769+138419+291829(Top 28%)1390(Top 38%)328(Top 41%)
9.6M9.60 mi1.60 mi2572-1011804-35429-103414(Top 52%)2107(Top 58%)508(Top 64%)
10M10.00 mi0.40 mi2595-231810-6430-13022(Top 46%)2011(Top 56%)471(Top 59%)
10.5M10.50 mi0.50 mi2589+61807+3431-12621(Top 40%)1797(Top 50%)424(Top 53%)
12M12.00 mi1.50 mi2747-1581897-90452-213601(Top 55%)2268(Top 63%)530(Top 67%)
Finish13.11 mi1.11 mi2760-131898-1458-63122(Top 47%)2032(Top 56%)490(Top 62%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 55%
~flat
+5ft-3ft

Overall

3601

Males

2268

M25-29

531

2M→4M

2.0 - 4.0 mi

Top 39%
×4story building
+67ft-69ft

Overall

2539

Males

1787

M25-29

425

4M→6M

4.0 - 6.0 mi

Top 52%
×9story building
+123ft-9ft

Overall

3394

Males

2260

M25-29

539

6M→8M

6.0 - 8.0 mi

Top 28%
×12story building
+166ft-53ft

Overall

1829

Males

1390

M25-29

329

8M→9.6M

8.0 - 9.6 mi

Top 52%
×13story building
+68ft-193ft

Overall

3414

Males

2107

M25-29

509

9.6M→10M

9.6 - 10.0 mi

Top 46%
×2story building
+0ft-24ft

Overall

3022

Males

2011

M25-29

472

10M→10.5M

10.0 - 10.5 mi

Top 40%
×6story building
+1ft-73ft

Overall

2621

Males

1797

M25-29

425

10.5M→12M

10.5 - 12.0 mi

Top 55%
×21story building
+280ft-26ft

Overall

3601

Males

2268

M25-29

531

12M→Finish

12.0 - 13.1 mi

Top 47%
×7story building
+14ft-89ft

Overall

3122

Males

2032

M25-29

490

Passing Analysis

Category:
Athletes Passed
606*
Passed By
918
Net Change
-312
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2448
2M → 4M118130-12#2448#2460
4M → 6M17312-295#2460#2755
6M → 8M308*24+284#2755#2471
8M → 9.6M58159-101#2471#2572
9.6M → 10M2851-23#2572#2595
10M → 10.5M126+6#2595#2589
10.5M → 12M28186-158#2589#2747
12M → Finish37*50-13#2747#2760
TOTALS606*918-312

* 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