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SF MARATHON 1ST HALF 2023

Sliang Zeng

Santa Clara, CA

Bib: 16203 M 24

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Male)
#0 / 3331
M20-29
#0 / 333
Race Day Weather
60°/50°F
overcast clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.40M
9:21/mi
13:05
→ flat
11 ft elev
2.13M
19:17/mi
27:10
→ flat
13 ft elev
6.43M
12:18/mi
1:20:04
↑ 274↓ 780.9%
213 ft elev
6.62M
-34:-50/mi
1:13:38
↑ 161.6%
239 ft elev
10.65M
10:24/mi
1:55:31
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
9:37/mi
2:19:09
↑ 244↓ 1141.0%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:13:38
Pace11:07 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:05:31
Pace10:06 /mi
📊Negative Split: 11.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:07:4713:059:2113:05
9:21
-
2.13M
2.13 mi07:21:5227:1012:4514:05
19:17
+9:56
6.43M
6.43 mi08:14:461:20:0412:2752:54
12:18
-6:59
6.62M
6.62 mi08:08:201:13:3811:07
-34:-50
-47:08
10.65M
10.65 mi08:50:131:55:3110:5141:53
10:24
+45:14
Finish
13.11 mi09:13:512:19:0910:3723:38
9:37
-0:47

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

-35:-50 /mi

Average Pace

10:37 /mi

Slowest Pace

19:17 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:09

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:37 /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
1.40M
1.40 mi07:07:4713:059:2113:05
9:21
#2974
2.13M
2.13 mi07:21:5227:1012:4514:05
19:17
#2998
6.43M
6.43 mi08:14:461:20:0412:2752:54
12:18
#3257
6.62M
6.62 mi08:08:201:13:3811:07
-34:-50
#3375
10.65M
10.65 mi08:50:131:55:3110:5141:53
10:24
#3381
Finish
13.11 mi09:13:512:19:0910:3723:38
9:37
#3277
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
1.40M1.40 mi1.40 mi297419282412974(Top 49%)1928(Top 58%)241(Top 72%)
2.13M2.13 mi0.73 mi2998-241924+4242-13200(Top 53%)2039(Top 61%)243(Top 73%)
6.43M6.43 mi4.30 mi3257-2592076-152255-133451(Top 57%)2166(Top 65%)260(Top 78%)
6.62M6.62 mi0.19 mi3375-1182123-47259-4---
10.65M10.65 mi4.03 mi3381-62148-25258+13479(Top 57%)2167(Top 65%)250(Top 75%)
Finish13.11 mi2.46 mi3277+1042074+74250+82876(Top 47%)1826(Top 55%)225(Top 68%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 49%
~flat
+3ft-2ft

Overall

2974

Males

1928

M20-24

241

1.40M→2.13M

1.4 - 2.1 mi

Top 53%
~flat
+3ft-1ft

Overall

3200

Males

2039

M20-24

243

2.13M→6.43M

2.1 - 6.4 mi

Top 57%
×17story building
+274ft-78ft

Overall

3451

Males

2166

M20-24

260

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M20-24

-

6.62M→10.65M

6.6 - 10.7 mi

Top 57%
×21story building
+153ft-361ft

Overall

3479

Males

2167

M20-24

250

10.65M→Finish

10.7 - 13.1 mi

Top 47%
×17story building
+244ft-114ft

Overall

2876

Males

1826

M20-24

225

Passing Analysis

Category:
Athletes Passed
645*
Passed By
948
Net Change
-303
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#2974
1.40M → 2.13M173197-24#2974#2998
2.13M → 6.43M170*429-259#2998#3257
6.43M → 6.62M30148-118#3257#3375
6.62M → 10.65M127*133-6#3375#3381
10.65M → Finish145*41+104#3381#3277
TOTALS645*948-303

* 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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The San Francisco Marathon

The San Francisco Marathon

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