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SF MARATHON 1ST HALF 2026

Jiafeng Yu

Bib: 13855•M•Age: 24

Mountain View, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 29%
Gender (Male)
#0 / 3619
Top 38%
M20-29
#0 / 358
Top 48%
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
8:38/mi
17:16
→ flat
4M
9:58/mi
37:12
↑ 67↓ 69
6M
9:41/mi
56:35
↑ 1231.1%
8M
8:57/mi
1:14:29
↑ 166↓ 531.1%
9.6M
8:57/mi
1:28:48
↑ 68↓ 1931.5%
10M
16:54/mi
1:35:33
↓ 241.1%
10.5M
4:20/mi
1:37:43
↓ 732.7%
12M
13:13/mi
1:57:32
↑ 2803.2%
Finish· 13.11 mi
10:06/mi
2:08:44
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time56:35
Pace9:26 /mi
2nd Half
Distance7.11 mi
Time1:12:09
Pace10:09 /mi
📊Positive Split: 27.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:26:0817:168:3817:16
8:38
-
4M
4.00 mi07:46:0437:129:1819:56
9:58
+1:20
6M
6.00 mi08:05:2756:359:2619:23
9:41
-0:17
8M
8.00 mi08:23:211:14:299:1917:54
8:57
-0:44
9.6M
9.60 mi08:37:401:28:489:1514:19
8:57
0:00
10M
10.00 mi08:44:251:35:339:336:45
16:54
+7:57
10.5M
10.50 mi08:46:351:37:439:182:10
4:20
-12:34
12M
12.00 mi09:06:241:57:329:4819:49
13:13
+8:53
Finish
13.11 mi09:17:362:08:449:4911:12
10:06
-3:07

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

4:20 /mi

Average Pace

9:49 /mi

Slowest Pace

16:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10

2% of race

Time at Steady Pace

1:40:00

78% of race

Time at Slower Pace

26:34

21% of race

Average Pace: 9:49 /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 mi07:26:0817:168:3817:16
8:38
#1059
4M
4.00 mi07:46:0437:129:1819:56
9:58
#1885
6M
6.00 mi08:05:2756:359:2619:23
9:41
#2004
8M
8.00 mi08:23:211:14:299:1917:54
8:57
#1729
9.6M
9.60 mi08:37:401:28:489:1514:19
8:57
#1853
10M
10.00 mi08:44:251:35:339:336:45
16:54
#1829
10.5M
10.50 mi08:46:351:37:439:182:10
4:20
#1810
12M
12.00 mi09:06:241:57:329:4819:49
13:13
#1845
Finish
13.11 mi09:17:362:08:449:4911:12
10:06
#1892
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 25%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:55

Segment Time

9:55/mi

Pace

0.90 mi

Distance

Overall

1619

Men

1215

Division

156

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2.00 mi1059843972112(Top 32%)1489(Top 41%)173(Top 48%)
4M4.00 mi2.00 mi1885-8261406-563169-722737(Top 42%)1893(Top 52%)228(Top 64%)
6M6.00 mi2.00 mi2004-1191479-73184-152282(Top 35%)1629(Top 45%)200(Top 56%)
8M8.00 mi2.00 mi1729+2751325+154160+241220(Top 19%)962(Top 27%)108(Top 30%)
9.6M9.60 mi1.60 mi1853-1241381-56172-122672(Top 41%)1697(Top 47%)203(Top 57%)
10M10.00 mi0.40 mi1829+241359+22171+11760(Top 27%)1285(Top 36%)162(Top 45%)
10.5M10.50 mi0.50 mi1810+191347+12169+21400(Top 21%)1084(Top 30%)137(Top 38%)
12M12.00 mi1.50 mi1845-351358-11166+32112(Top 32%)1489(Top 41%)173(Top 48%)
Finish13.11 mi1.11 mi1892-471384-26171-52966(Top 45%)1949(Top 54%)227(Top 63%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 32%
~flat
+5ft-3ft

Overall

2112

Males

1489

M20-24

174

2M→4M

2.0 - 4.0 mi

Top 42%
×4story building
+67ft-69ft

Overall

2737

Males

1893

M20-24

229

4M→6M

4.0 - 6.0 mi

Top 35%
×9story building
+123ft-9ft

Overall

2282

Males

1629

M20-24

201

6M→8M

6.0 - 8.0 mi

Top 19%
×12story building
+166ft-53ft

Overall

1220

Males

962

M20-24

109

8M→9.6M

8.0 - 9.6 mi

Top 41%
×13story building
+68ft-193ft

Overall

2672

Males

1697

M20-24

204

9.6M→10M

9.6 - 10.0 mi

Top 27%
×2story building
+0ft-24ft

Overall

1760

Males

1285

M20-24

163

10M→10.5M

10.0 - 10.5 mi

Top 21%
×6story building
+1ft-73ft

Overall

1400

Males

1084

M20-24

137

10.5M→12M

10.5 - 12.0 mi

Top 32%
×21story building
+280ft-26ft

Overall

2112

Males

1489

M20-24

174

12M→Finish

12.0 - 13.1 mi

Top 45%
×7story building
+14ft-89ft

Overall

2966

Males

1949

M20-24

227

Passing Analysis

Category:
Athletes Passed
501*
Passed By
1334
Net Change
-833
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1059
2M → 4M2828-826#1059#1885
4M → 6M32151-119#1885#2004
6M → 8M287*12+275#2004#1729
8M → 9.6M32156-124#1729#1853
9.6M → 10M4117+24#1853#1829
10M → 10.5M212+19#1829#1810
10.5M → 12M5994-35#1810#1845
12M → Finish27*74-47#1845#1892
TOTALS501*1334-833

* 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