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SF MARATHON 1ST HALF 2026

Gwanggyu Sun

Bib: 12604•M•Age: 34

Mountain View, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 10%
Gender (Male)
#0 / 3619
Top 14%
Division (M30-34)
#0 / 772
Top 15%
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
8:26/mi
16:53
→ flat
4M
8:19/mi
33:30
↑ 67↓ 69
6M
8:14/mi
49:59
↑ 1231.1%
8M
8:57/mi
1:07:53
↑ 166↓ 531.1%
9.6M
6:34/mi
1:18:23
↑ 68↓ 1931.5%
10M
15:26/mi
1:24:33
↓ 241.1%
10.5M
4:18/mi
1:26:42
↓ 732.7%
12M
11:26/mi
1:43:51
↑ 2803.2%
Finish· 13.11 mi
7:59/mi
1:52:42
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time49:59
Pace8:20 /mi
2nd Half
Distance7.11 mi
Time1:02:43
Pace8:49 /mi
📊Positive Split: 25.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:49:2216:538:2616:53
8:26
-
4M
4.00 mi07:05:5933:308:2316:37
8:19
-0:07
6M
6.00 mi07:22:2849:598:2016:29
8:14
-0:05
8M
8.00 mi07:40:221:07:538:2917:54
8:57
+0:43
9.6M
9.60 mi07:50:521:18:238:1010:30
6:34
-2:23
10M
10.00 mi07:57:021:24:338:276:10
15:26
+8:52
10.5M
10.50 mi07:59:111:26:428:152:09
4:18
-11:08
12M
12.00 mi08:16:201:43:518:3917:09
11:26
+7:08
Finish
13.11 mi08:25:111:52:428:368:51
7:59
-3:27

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

4:18 /mi

Average Pace

8:36 /mi

Slowest Pace

15:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:39

11% of race

Time at Steady Pace

1:16:44

68% of race

Time at Slower Pace

23:19

21% of race

Average Pace: 8:36 /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 mi06:49:2216:538:2616:53
8:26
#849
4M
4.00 mi07:05:5933:308:2316:37
8:19
#747
6M
6.00 mi07:22:2849:598:2016:29
8:14
#690
8M
8.00 mi07:40:221:07:538:2917:54
8:57
#773
9.6M
9.60 mi07:50:521:18:238:1010:30
6:34
#643
10M
10.00 mi07:57:021:24:338:276:10
15:26
#649
10.5M
10.50 mi07:59:111:26:428:152:09
4:18
#659
12M
12.00 mi08:16:201:43:518:3917:09
11:26
#667
Finish
13.11 mi08:25:111:52:428:368:51
7:59
#625
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 14%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:19

Segment Time

9:15/mi

Pace

0.90 mi

Distance

Overall

946

Men

755

Division

171

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi849689142866(Top 13%)685(Top 19%)159(Top 21%)
4M4.00 mi2.00 mi747+102617+72137+5673(Top 10%)561(Top 16%)120(Top 16%)
6M6.00 mi2.00 mi690+57569+48131+6647(Top 10%)538(Top 15%)117(Top 15%)
8M8.00 mi2.00 mi773-83641-72137-61222(Top 19%)964(Top 27%)213(Top 28%)
9.6M9.60 mi1.60 mi643+130533+108118+19384(Top 6%)297(Top 8%)74(Top 10%)
10M10.00 mi0.40 mi649-6538-5118915(Top 14%)714(Top 20%)158(Top 20%)
10.5M10.50 mi0.50 mi659-10545-7121-31263(Top 19%)989(Top 27%)224(Top 29%)
12M12.00 mi1.50 mi667-8545123-2866(Top 13%)685(Top 19%)159(Top 21%)
Finish13.11 mi1.11 mi625+42517+28118+5578(Top 9%)483(Top 13%)103(Top 13%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 13%
~flat
+5ft-3ft

Overall

866

Males

685

M30-34

160

2M→4M

2.0 - 4.0 mi

Top 10%
×4story building
+67ft-69ft

Overall

673

Males

561

M30-34

121

4M→6M

4.0 - 6.0 mi

Top 10%
×9story building
+123ft-9ft

Overall

647

Males

538

M30-34

118

6M→8M

6.0 - 8.0 mi

Top 19%
×12story building
+166ft-53ft

Overall

1222

Males

964

M30-34

214

8M→9.6M

8.0 - 9.6 mi

Top 6%
×13story building
+68ft-193ft

Overall

384

Males

297

M30-34

75

9.6M→10M

9.6 - 10.0 mi

Top 14%
×2story building
+0ft-24ft

Overall

915

Males

714

M30-34

159

10M→10.5M

10.0 - 10.5 mi

Top 19%
×6story building
+1ft-73ft

Overall

1263

Males

989

M30-34

225

10.5M→12M

10.5 - 12.0 mi

Top 13%
×21story building
+280ft-26ft

Overall

866

Males

685

M30-34

160

12M→Finish

12.0 - 13.1 mi

Top 9%
×7story building
+14ft-89ft

Overall

578

Males

483

M30-34

103

Passing Analysis

Category:
Athletes Passed
468*
Passed By
244
Net Change
+224
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#849
2M → 4M11917+102#849#747
4M → 6M7821+57#747#690
6M → 8M43126-83#690#773
8M → 9.6M14717+130#773#643
9.6M → 10M713-6#643#649
10M → 10.5M010-10#649#659
10.5M → 12M3139-8#659#667
12M → Finish43*1+42#667#625
TOTALS468*244+224

* 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