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SF MARATHON 1ST HALF 2026

Stephen Chi

Bib: 15727•M•Age: 24

Mountain View, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 23%
Gender (Male)
#0 / 3619
Top 32%
M20-29
#0 / 358
Top 40%
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
9:12/mi
18:24
→ flat
4M
9:13/mi
36:50
↑ 67↓ 69
6M
9:14/mi
55:18
↑ 1231.1%
8M
8:42/mi
1:12:41
↑ 166↓ 531.1%
9.6M
8:42/mi
1:26:36
↑ 68↓ 1931.5%
10M
16:44/mi
1:33:17
↓ 241.1%
10.5M
4:38/mi
1:35:36
↓ 732.7%
12M
12:25/mi
1:54:13
↑ 2803.2%
Finish· 13.11 mi
8:47/mi
2:03:58
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time55:18
Pace9:13 /mi
2nd Half
Distance7.11 mi
Time1:08:40
Pace9:40 /mi
📊Positive Split: 24.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:55:3718:249:1218:24
9:12
-
4M
4.00 mi07:14:0336:509:1318:26
9:13
+0:01
6M
6.00 mi07:32:3155:189:1318:28
9:14
+0:01
8M
8.00 mi07:49:541:12:419:0517:23
8:42
-0:32
9.6M
9.60 mi08:03:491:26:369:0113:55
8:42
0:00
10M
10.00 mi08:10:301:33:179:206:41
16:44
+8:02
10.5M
10.50 mi08:12:491:35:369:062:19
4:38
-12:06
12M
12.00 mi08:31:261:54:139:3118:37
12:25
+7:47
Finish
13.11 mi08:41:112:03:589:279:45
8:47
-3:38

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

4:38 /mi

Average Pace

9:27 /mi

Slowest Pace

16:44 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19

2% of race

Time at Steady Pace

1:36:21

78% of race

Time at Slower Pace

25:18

20% of race

Average Pace: 9:27 /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 mi06:55:3718:249:1218:24
9:12
#1789
4M
4.00 mi07:14:0336:509:1318:26
9:13
#1760
6M
6.00 mi07:32:3155:189:1318:28
9:14
#1729
8M
8.00 mi07:49:541:12:419:0517:23
8:42
#1431
9.6M
9.60 mi08:03:491:26:369:0113:55
8:42
#1575
10M
10.00 mi08:10:301:33:179:206:41
16:44
#1576
10.5M
10.50 mi08:12:491:35:369:062:19
4:38
#1583
12M
12.00 mi08:31:261:54:139:3118:37
12:25
#1535
Finish
13.11 mi08:41:112:03:589:279:45
8:47
#1492
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 26%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:00

Segment Time

10:00/mi

Pace

0.90 mi

Distance

Overall

1705

Men

1268

Division

161

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2.00 mi178913361621506(Top 23%)1105(Top 31%)143(Top 40%)
4M4.00 mi2.00 mi1760+291329+7163-11736(Top 26%)1313(Top 36%)167(Top 47%)
6M6.00 mi2.00 mi1729+311306+23164-11715(Top 26%)1295(Top 36%)168(Top 47%)
8M8.00 mi2.00 mi1431+2981128+178136+28996(Top 15%)819(Top 23%)92(Top 26%)
9.6M9.60 mi1.60 mi1575-1441211-83152-162357(Top 36%)1527(Top 42%)188(Top 53%)
10M10.00 mi0.40 mi1576-112111521653(Top 25%)1220(Top 34%)157(Top 44%)
10.5M10.50 mi0.50 mi1583-71216-51522146(Top 33%)1534(Top 42%)193(Top 54%)
12M12.00 mi1.50 mi1535+481169+47143+91506(Top 23%)1105(Top 31%)143(Top 40%)
Finish13.11 mi1.11 mi1492+431149+201431412(Top 21%)1071(Top 30%)144(Top 40%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 23%
~flat
+5ft-3ft

Overall

1506

Males

1105

M20-24

144

2M→4M

2.0 - 4.0 mi

Top 26%
×4story building
+67ft-69ft

Overall

1736

Males

1313

M20-24

168

4M→6M

4.0 - 6.0 mi

Top 26%
×9story building
+123ft-9ft

Overall

1715

Males

1295

M20-24

169

6M→8M

6.0 - 8.0 mi

Top 15%
×12story building
+166ft-53ft

Overall

996

Males

819

M20-24

93

8M→9.6M

8.0 - 9.6 mi

Top 36%
×13story building
+68ft-193ft

Overall

2357

Males

1527

M20-24

189

9.6M→10M

9.6 - 10.0 mi

Top 25%
×2story building
+0ft-24ft

Overall

1653

Males

1220

M20-24

158

10M→10.5M

10.0 - 10.5 mi

Top 33%
×6story building
+1ft-73ft

Overall

2146

Males

1534

M20-24

193

10.5M→12M

10.5 - 12.0 mi

Top 23%
×21story building
+280ft-26ft

Overall

1506

Males

1105

M20-24

144

12M→Finish

12.0 - 13.1 mi

Top 21%
×7story building
+14ft-89ft

Overall

1412

Males

1071

M20-24

144

Passing Analysis

Category:
Athletes Passed
711*
Passed By
414
Net Change
+297
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1789
2M → 4M11586+29#1789#1760
4M → 6M8554+31#1760#1729
6M → 8M311*13+298#1729#1431
8M → 9.6M29173-144#1431#1575
9.6M → 10M2526-1#1575#1576
10M → 10.5M411-7#1576#1583
10.5M → 12M8436+48#1583#1535
12M → Finish58*15+43#1535#1492
TOTALS711*414+297

* 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