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SF MARATHON 1ST HALF 2026

Siyuan Yi

Nashville, TN

Bib: 19735 M 22

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 24%
Gender (Male)
#0 / 3619
Top 34%
M20-29
#0 / 358
Top 43%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
9:15/mi
18:30
→ flat
12 ft elev
4M
9:16/mi
37:01
↑ 67↓ 69
10 ft elev
6M
9:08/mi
55:18
↑ 1231.1%
126 ft elev
8M
8:57/mi
1:13:12
↑ 166↓ 531.1%
246 ft elev
9.6M
8:57/mi
1:27:32
↑ 68↓ 1931.5%
126 ft elev
10M
16:16/mi
1:34:02
↓ 241.1%
90 ft elev
10.5M
4:20/mi
1:36:12
↓ 732.7%
18 ft elev
12M
12:49/mi
1:55:26
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
8:46/mi
2:05:09
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
55:189:13 /mi⚡ faster
2nd Half
1:09:519:50 /mi+26.3%
Positive split — 26.3% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
18:309:152.00 mi18:30
9:15
-
4M
37:019:152.00 mi18:31
9:16
+0:01
6M
55:189:132.00 mi18:17
9:08
-0:08
8M
1:13:129:092.00 mi17:54
8:57
-0:11
9.6M
1:27:329:071.60 mi14:20
8:57
0:00
10M
1:34:029:240.40 mi6:30
16:16
+7:19
10.5M
1:36:129:100.50 mi2:10
4:20
-11:56
12M
1:55:269:371.50 mi19:14
12:49
+8:29
Finish(13.11 mi)
2:05:099:331.11 mi9:43
8:46
-4:03
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

4:20 /mi

Average Pace

9:33 /mi

Slowest Pace

16:16 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:10

2% of race

Time at Steady Pace

1:37:15

78% of race

Time at Slower Pace

25:44

21% of race

Average Pace: 9:33 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower
Featured Segment

Garmin Challenge

Top 20%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:40

Segment Time

9:38/mi

Pace

0.90 mi

Distance

Overall

1321

Men

1023

Division

132

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2.00 mi1864138316917961295157
4M4.00 mi2.00 mi1824+401367+16165+417901345169
6M6.00 mi2.00 mi1730+941307+6016516051222160
8M8.00 mi2.00 mi1525+2051184+123144+211225967110
9.6M9.60 mi1.60 mi1691-1661276-92159-1526751700205
10M10.00 mi0.40 mi1655+361255+21154+513961057134
10.5M10.50 mi0.50 mi1644+111247+815413901078135
12M12.00 mi1.50 mi1652-81244+3157-317961295157
Finish13.11 mi1.11 mi1597+551217+27153+413801052143

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 27%
~flat
+5ft-3ft

Overall

1796

Males

1295

M20-24

158

2M→4M

2.0 - 4.0 mi

Top 27%
×4story building
+67ft-69ft

Overall

1790

Males

1345

M20-24

170

4M→6M

4.0 - 6.0 mi

Top 24%
×9story building
+123ft-9ft

Overall

1605

Males

1222

M20-24

161

6M→8M

6.0 - 8.0 mi

Top 19%
×12story building
+166ft-53ft

Overall

1225

Males

967

M20-24

111

8M→9.6M

8.0 - 9.6 mi

Top 41%
×13story building
+68ft-193ft

Overall

2675

Males

1700

M20-24

206

9.6M→10M

9.6 - 10.0 mi

Top 21%
×2story building
+0ft-24ft

Overall

1396

Males

1057

M20-24

135

10M→10.5M

10.0 - 10.5 mi

Top 21%
×6story building
+1ft-73ft

Overall

1390

Males

1078

M20-24

135

10.5M→12M

10.5 - 12.0 mi

Top 27%
×21story building
+280ft-26ft

Overall

1796

Males

1295

M20-24

158

12M→Finish

12.0 - 13.1 mi

Top 21%
×7story building
+14ft-89ft

Overall

1380

Males

1052

M20-24

143

Passing Analysis

Category:
Athletes Passed
682*
Passed By
415
Net Change
+267
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1864
2M → 4M11272+40#1864#1824
4M → 6M12733+94#1824#1730
6M → 8M240*35+205#1730#1525
8M → 9.6M20186-166#1525#1691
9.6M → 10M459+36#1691#1655
10M → 10.5M110+11#1655#1644
10.5M → 12M5967-8#1644#1652
12M → Finish68*13+55#1652#1597
TOTALS682*415+267

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

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

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