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SF MARATHON 2ND HALF 2026

Byungseo An

Bib: 23064•M•Age: 29

Burlingame, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Male)
#0 / 2065
Division (M25-29)
#0 / 503
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
11:21/mi
22:42
↑ 138↓ 680.7%
4M
10:12/mi
43:06
↑ 1631.4%
6M
13:06/mi
1:09:19
↑ 55↓ 830.3%
8M
7:56/mi
1:25:11
↑ 65↓ 1510.8%
10M
10:43/mi
1:46:37
↑ 61↓ 1741.1%
12M
9:32/mi
2:05:41
↑ 41↓ 530.1%
Finish· 13.11 mi
9:04/mi
2:15:44
→ flat

The Course

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Half Splits

1st Half· via 6M
Distance6.00 mi
Time1:09:19
Pace11:33 /mi
2nd Half✓ Faster
Distance7.11 mi
Time1:06:25
Pace9:21 /mi
📊Negative Split: 4.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:03:0922:4211:2122:42
11:21
-
4M
4.00 mi09:23:3343:0610:4720:24
10:12
-1:09
6M
6.00 mi09:49:461:09:1911:3326:13
13:06
+2:54
8M
8.00 mi10:05:381:25:1110:3915:52
7:56
-5:10
10M
10.00 mi10:27:041:46:3710:4021:26
10:43
+2:47
12M
12.00 mi10:46:082:05:4110:2819:04
9:32
-1:11
Finish
13.11 mi10:56:112:15:4410:2110:03
9:04
-0:28

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

7:56 /mi

Average Pace

10:21 /mi

Slowest Pace

13:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

25:55

19% of race

Time at Steady Pace

1:00:54

45% of race

Time at Slower Pace

48:55

36% of race

Average Pace: 10:21 /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 mi09:03:0922:4211:2122:42
11:21
#3019
4M
4.00 mi09:23:3343:0610:4720:24
10:12
#2722
6M
6.00 mi09:49:461:09:1911:3326:13
13:06
#2647
8M
8.00 mi10:05:381:25:1110:3915:52
7:56
#2566
10M
10.00 mi10:27:041:46:3710:4021:26
10:43
#2432
12M
12.00 mi10:46:082:05:4110:2819:04
9:32
#2139
Finish
13.11 mi10:56:112:15:4410:2110:03
9:04
#2008
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi301917594391077(Top 28%)753(Top 36%)201(Top 40%)
4M4.00 mi2.00 mi2722+2971643+116410+292482(Top 65%)1523(Top 74%)389(Top 77%)
6M6.00 mi2.00 mi2647+751602+41403+72525(Top 66%)1541(Top 75%)382(Top 76%)
8M8.00 mi2.00 mi2566+811566+36392+112183(Top 57%)1395(Top 68%)353(Top 70%)
10M10.00 mi2.00 mi2432+1341512+54377+152048(Top 53%)1311(Top 63%)332(Top 66%)
12M12.00 mi2.00 mi2139+2931370+142348+291077(Top 28%)753(Top 36%)201(Top 40%)
Finish13.11 mi1.11 mi2008+1311297+73335+131011(Top 26%)716(Top 35%)190(Top 38%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 28%
×9story building
+138ft-68ft

Overall

1077

Males

753

M25-29

201

2M→4M

2.0 - 4.0 mi

Top 65%
×13story building
+163ft-19ft

Overall

2482

Males

1523

M25-29

389

4M→6M

4.0 - 6.0 mi

Top 66%
×4story building
+55ft-83ft

Overall

2525

Males

1541

M25-29

382

6M→8M

6.0 - 8.0 mi

Top 57%
×10story building
+65ft-151ft

Overall

2183

Males

1395

M25-29

353

8M→10M

8.0 - 10.0 mi

Top 53%
×10story building
+61ft-174ft

Overall

2048

Males

1311

M25-29

332

10M→12M

10.0 - 12.0 mi

Top 28%
×3story building
+41ft-53ft

Overall

1077

Males

753

M25-29

201

12M→Finish

12.0 - 13.1 mi

Top 26%
×1human
+6ft-6ft

Overall

1011

Males

716

M25-29

190

Passing Analysis

Category:
Athletes Passed
1062*
Passed By
51
Net Change
+1011
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3019
2M → 4M2992+297#3019#2722
4M → 6M11237+75#2722#2647
6M → 8M9312+81#2647#2566
8M → 10M134*0+134#2566#2432
10M → 12M2930+293#2432#2139
12M → Finish131*0+131#2139#2008
TOTALS1062*51+1011

* 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