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SF MARATHON 1ST HALF 2026

Sun Seo

Bib: 17860•M•Age: 39

SF, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 22%
Gender (Male)
#0 / 3619
Top 31%
Division (M35-39)
#0 / 582
Top 33%
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
9:43/mi
19:27
→ flat
4M
9:16/mi
37:59
↑ 67↓ 69
6M
8:57/mi
55:54
↑ 1231.1%
8M
10:29/mi
1:16:53
↑ 166↓ 531.1%
9.6M
7:06/mi
1:28:14
↑ 68↓ 1931.5%
10M
16:29/mi
1:34:49
↓ 241.1%
10.5M
4:30/mi
1:37:04
↓ 732.7%
12M
11:46/mi
1:54:43
↑ 2803.2%
Finish· 13.11 mi
7:56/mi
2:03:31
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time55:54
Pace9:19 /mi
2nd Half
Distance7.11 mi
Time1:07:37
Pace9:31 /mi
📊Positive Split: 21.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:09:1819:279:4319:27
9:43
-
4M
4.00 mi07:27:5037:599:3018:32
9:16
-0:27
6M
6.00 mi07:45:4555:549:1917:55
8:57
-0:19
8M
8.00 mi08:06:441:16:539:3720:59
10:29
+1:32
9.6M
9.60 mi08:18:051:28:149:1111:21
7:06
-3:23
10M
10.00 mi08:24:401:34:499:296:35
16:29
+9:23
10.5M
10.50 mi08:26:551:37:049:152:15
4:30
-11:59
12M
12.00 mi08:44:341:54:439:3417:39
11:46
+7:16
Finish
13.11 mi08:53:222:03:319:258:48
7:56
-3:50

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

4:30 /mi

Average Pace

9:25 /mi

Slowest Pace

16:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:36

11% of race

Time at Steady Pace

1:25:41

69% of race

Time at Slower Pace

24:14

20% of race

Average Pace: 9:25 /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 mi07:09:1819:279:4319:27
9:43
#2601
4M
4.00 mi07:27:5037:599:3018:32
9:16
#2131
6M
6.00 mi07:45:4555:549:1917:55
8:57
#1869
8M
8.00 mi08:06:441:16:539:3720:59
10:29
#2122
9.6M
9.60 mi08:18:051:28:149:1111:21
7:06
#1776
10M
10.00 mi08:24:401:34:499:296:35
16:29
#1740
10.5M
10.50 mi08:26:551:37:049:152:15
4:30
#1737
12M
12.00 mi08:44:341:54:439:3417:39
11:46
#1578
Finish
13.11 mi08:53:222:03:319:258:48
7:56
#1471
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 23%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:50

Segment Time

9:49/mi

Pace

0.90 mi

Distance

Overall

1515

Men

1151

Division

194

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi260118273151069(Top 16%)829(Top 23%)132(Top 23%)
4M4.00 mi2.00 mi2131+4701547+280258+571797(Top 27%)1350(Top 37%)238(Top 41%)
6M6.00 mi2.00 mi1869+2621397+150239+191375(Top 21%)1069(Top 30%)189(Top 32%)
8M8.00 mi2.00 mi2122-2531563-166267-282975(Top 45%)2062(Top 57%)353(Top 61%)
9.6M9.60 mi1.60 mi1776+3461334+229227+40741(Top 11%)542(Top 15%)87(Top 15%)
10M10.00 mi0.40 mi1740+361305+29222+51511(Top 23%)1133(Top 31%)189(Top 32%)
10.5M10.50 mi0.50 mi1737+31303+2221+11806(Top 27%)1343(Top 37%)230(Top 40%)
12M12.00 mi1.50 mi1578+1591199+104208+131069(Top 16%)829(Top 23%)132(Top 23%)
Finish13.11 mi1.11 mi1471+1071132+67194+14545(Top 8%)458(Top 13%)75(Top 13%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 16%
~flat
+5ft-3ft

Overall

1069

Males

829

M35-39

132

2M→4M

2.0 - 4.0 mi

Top 27%
×4story building
+67ft-69ft

Overall

1797

Males

1350

M35-39

238

4M→6M

4.0 - 6.0 mi

Top 21%
×9story building
+123ft-9ft

Overall

1375

Males

1069

M35-39

189

6M→8M

6.0 - 8.0 mi

Top 45%
×12story building
+166ft-53ft

Overall

2975

Males

2062

M35-39

353

8M→9.6M

8.0 - 9.6 mi

Top 11%
×13story building
+68ft-193ft

Overall

741

Males

542

M35-39

87

9.6M→10M

9.6 - 10.0 mi

Top 23%
×2story building
+0ft-24ft

Overall

1511

Males

1133

M35-39

189

10M→10.5M

10.0 - 10.5 mi

Top 27%
×6story building
+1ft-73ft

Overall

1806

Males

1343

M35-39

230

10.5M→12M

10.5 - 12.0 mi

Top 16%
×21story building
+280ft-26ft

Overall

1069

Males

829

M35-39

132

12M→Finish

12.0 - 13.1 mi

Top 8%
×7story building
+14ft-89ft

Overall

545

Males

458

M35-39

75

Passing Analysis

Category:
Athletes Passed
1471*
Passed By
341
Net Change
+1130
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2601
2M → 4M4788+470#2601#2131
4M → 6M2653+262#2131#1869
6M → 8M32*285-253#1869#2122
8M → 9.6M3526+346#2122#1776
9.6M → 10M4610+36#1776#1740
10M → 10.5M85+3#1740#1737
10.5M → 12M18223+159#1737#1578
12M → Finish108*1+107#1578#1471
TOTALS1471*341+1130

* 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