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SF MARATHON 1ST HALF 2023

Xiaojun Hu

Newark, CA

Bib: 15845 M 59

0:00
0:00
/ mi
Masters
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Overall
#0 / 6072
Top 39%
Gender (Male)
#0 / 3331
Top 47%
Masters (Masters Men)
#0 / 1028
Top 36%
Division (M55-59)
#0 / 129
Top 30%
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
9:26/mi
13:12
→ flat
11 ft elev
2.13M
20:24/mi
28:06
→ flat
13 ft elev
6.43M
11:26/mi
1:17:17
↑ 274↓ 780.9%
213 ft elev
6.62M
-38:-5/mi
1:10:14
↑ 161.6%
239 ft elev
10.65M
9:24/mi
1:48:07
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
9:03/mi
2:10:23
↑ 244↓ 1141.0%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:10:1410:37 /mi+14.4%
2nd Half
1:00:099:16 /mi✓ faster
Negative split — 14.4% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:07:2713:129:2613:12
9:26
-
2.13M
2.13 mi07:22:2128:0613:1214:54
20:24
+10:58
6.43M
6.43 mi08:11:321:17:1712:0149:11
11:26
-8:58
6.62M
6.62 mi08:04:291:10:1410:37
-38:-5
-49:31
10.65M
10.65 mi08:42:221:48:0710:0937:53
9:24
+47:29
Finish
13.11 mi09:04:382:10:239:5722:16
9:03
-0:21

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

-39:-5 /mi

Average Pace

9:57 /mi

Slowest Pace

20:24 /mi

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Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:10:23

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:57 /mi

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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 mi07:07:2713:129:2613:12
9:26
#3127
2.13M
2.13 mi07:22:2128:0613:1214:54
20:24
#3553
6.43M
6.43 mi08:11:321:17:1712:0149:11
11:26
#2744
6.62M
6.62 mi08:04:291:10:1410:37
-38:-5
#2686
10.65M
10.65 mi08:42:221:48:0710:0937:53
9:24
#2471
Finish
13.11 mi09:04:382:10:239:5722:16
9:03
#2355
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
1.40M1.40 mi1.40 mi31271999553127199955
2.13M2.13 mi0.73 mi3553-4262230-23161-64065247971
6.43M6.43 mi4.30 mi2744+8091812+41848+132482165644
6.62M6.62 mi0.19 mi2686+581774+3847+1---
10.65M10.65 mi4.03 mi2471+2151660+11444+32172147635
Finish13.11 mi2.46 mi2355+1161578+8239+52200146132

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 51%
~flat
+3ft-2ft

Overall

3127

Males

1999

M55-59

55

1.40M→2.13M

1.4 - 2.1 mi

Top 67%
~flat
+3ft-1ft

Overall

4065

Males

2479

M55-59

71

2.13M→6.43M

2.1 - 6.4 mi

Top 41%
×17story building
+274ft-78ft

Overall

2482

Males

1656

M55-59

44

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M55-59

-

6.62M→10.65M

6.6 - 10.7 mi

Top 36%
×21story building
+153ft-361ft

Overall

2172

Males

1476

M55-59

35

10.65M→Finish

10.7 - 13.1 mi

Top 36%
×17story building
+244ft-114ft

Overall

2200

Males

1461

M55-59

32

Passing Analysis

Category:
Athletes Passed
1443*
Passed By
671
Net Change
+772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#3127
1.40M → 2.13M68494-426#3127#3553
2.13M → 6.43M846*37+809#3553#2744
6.43M → 6.62M10446+58#2744#2686
6.62M → 10.65M272*57+215#2686#2471
10.65M → Finish153*37+116#2471#2355
TOTALS1443*671+772

* 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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Public Race Data

The San Francisco Marathon

The San Francisco Marathon

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