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SF MARATHON 2ND HALF 2026

Jiachen Chen

Bib: 23878•M•Age: 28

San Jose, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 36%
Gender (Male)
#0 / 2065
Top 46%
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
9:32/mi
19:05
↑ 138↓ 680.7%
4M
8:52/mi
36:49
↑ 1631.4%
6M
11:23/mi
59:36
↑ 55↓ 830.3%
8M
7:06/mi
1:13:49
↑ 65↓ 1510.8%
10M
9:36/mi
1:33:00
↑ 61↓ 1741.1%
12M
9:48/mi
1:52:36
↑ 41↓ 530.1%
Finish· 13.11 mi
9:50/mi
2:03:30
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time59:36
Pace9:56 /mi
2nd Half
Distance7.11 mi
Time1:03:54
Pace8:59 /mi
📊Positive Split: 7.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:03:0519:059:3219:05
9:32
-
4M
4.00 mi09:20:4936:499:1217:44
8:52
-0:40
6M
6.00 mi09:43:3659:369:5622:47
11:23
+2:31
8M
8.00 mi09:57:491:13:499:1414:13
7:06
-4:17
10M
10.00 mi10:17:001:33:009:1819:11
9:36
+2:30
12M
12.00 mi10:36:361:52:369:2319:36
9:48
+0:12
Finish
13.11 mi10:47:302:03:309:2510:54
9:50
+0:02

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

7:06 /mi

Average Pace

9:25 /mi

Slowest Pace

11:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:57

26% of race

Time at Steady Pace

1:08:46

56% of race

Time at Slower Pace

22:47

18% 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 mi09:03:0519:059:3219:05
9:32
#1637
4M
4.00 mi09:20:4936:499:1217:44
8:52
#1563
6M
6.00 mi09:43:3659:369:5622:47
11:23
#1524
8M
8.00 mi09:57:491:13:499:1414:13
7:06
#1500
10M
10.00 mi10:17:001:33:009:1819:11
9:36
#1465
12M
12.00 mi10:36:361:52:369:2319:36
9:48
#1385
Finish
13.11 mi10:47:302:03:309:2510:54
9:50
#1376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi163711212841227(Top 32%)839(Top 41%)226(Top 45%)
4M4.00 mi2.00 mi1563+741066+55276+81528(Top 40%)1037(Top 50%)260(Top 52%)
6M6.00 mi2.00 mi1524+391049+17275+11471(Top 38%)1012(Top 49%)268(Top 53%)
8M8.00 mi2.00 mi1500+241034+15272+31444(Top 38%)986(Top 48%)270(Top 54%)
10M10.00 mi2.00 mi1465+351009+25271+11351(Top 35%)926(Top 45%)251(Top 50%)
12M12.00 mi2.00 mi1385+80949+60257+141227(Top 32%)839(Top 41%)226(Top 45%)
Finish13.11 mi1.11 mi1376+9940+9253+41471(Top 38%)966(Top 47%)253(Top 50%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 32%
×9story building
+138ft-68ft

Overall

1227

Males

839

M25-29

226

2M→4M

2.0 - 4.0 mi

Top 40%
×13story building
+163ft-19ft

Overall

1528

Males

1037

M25-29

260

4M→6M

4.0 - 6.0 mi

Top 38%
×4story building
+55ft-83ft

Overall

1471

Males

1012

M25-29

268

6M→8M

6.0 - 8.0 mi

Top 38%
×10story building
+65ft-151ft

Overall

1444

Males

986

M25-29

270

8M→10M

8.0 - 10.0 mi

Top 35%
×10story building
+61ft-174ft

Overall

1351

Males

926

M25-29

251

10M→12M

10.0 - 12.0 mi

Top 32%
×3story building
+41ft-53ft

Overall

1227

Males

839

M25-29

226

12M→Finish

12.0 - 13.1 mi

Top 38%
×1human
+6ft-6ft

Overall

1471

Males

966

M25-29

253

Passing Analysis

Category:
Athletes Passed
396*
Passed By
135
Net Change
+261
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1637
2M → 4M11339+74#1637#1563
4M → 6M6324+39#1563#1524
6M → 8M4521+24#1524#1500
8M → 10M57*22+35#1500#1465
10M → 12M9717+80#1465#1385
12M → Finish21*12+9#1385#1376
TOTALS396*135+261

* 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