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SF MARATHON 1ST HALF 2023

Katherine Nieh

Bib: 14627•F•Age: 40

Palo Alto, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6072
Gender (Female)
#0 / 2732
Masters (Masters Women)
#0 / 746
Division (F40-44)
#0 / 268
Race Day Weather
60°/50°F
overcast 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
1.40M
11:52/mi
16:37
→ flat
2.13M
24:30/mi
34:30
→ flat
6.43M
14:31/mi
1:36:56
↑ 274↓ 780.9%
6.62M
-44:-34/mi
1:28:39
↑ 161.6%
10.65M
13:00/mi
2:21:04
↑ 153↓ 3611.0%
Finish· 13.11 mi
12:35/mi
2:52:01
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:28:39
Pace13:23 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:23:22
Pace12:51 /mi
📊Negative Split: 6.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi07:15:1816:3711:5216:37
11:52
-
2.13M
2.13 mi07:33:1134:3016:1217:53
24:30
+12:38
6.43M
6.43 mi08:35:371:36:5615:051:02:26
14:31
-9:59
6.62M
6.62 mi08:27:201:28:3913:23
-44:-34
-59:05
10.65M
10.65 mi09:19:452:21:0413:1552:25
13:00
+57:34
Finish
13.11 mi09:50:422:52:0113:0730:57
12:35
-0:25

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

-45:-34 /mi

Average Pace

13:07 /mi

Slowest Pace

24:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:01

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 13:07 /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 mi07:15:1816:3711:5216:37
11:52
#5492
2.13M
2.13 mi07:33:1134:3016:1217:53
24:30
#5583
6.43M
6.43 mi08:35:371:36:5615:051:02:26
14:31
#5370
6.62M
6.62 mi08:27:201:28:3913:23
-44:-34
#5369
10.65M
10.65 mi09:19:452:21:0413:1552:25
13:00
#5437
Finish
13.11 mi09:50:422:52:0113:0730:57
12:35
#5432
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
1.40M1.40 mi1.40 mi549223712095492(Top 90%)2371(Top 87%)209(Top 78%)
2.13M2.13 mi0.73 mi5583-912404-33214-55698(Top 94%)2485(Top 91%)231(Top 86%)
6.43M6.43 mi4.30 mi5370+2132291+113204+105200(Top 86%)2197(Top 80%)202(Top 75%)
6.62M6.62 mi0.19 mi5369+12293-2206-2---
10.65M10.65 mi4.03 mi5437-682348-55215-95487(Top 90%)2396(Top 88%)227(Top 85%)
Finish13.11 mi2.46 mi5432+52337+11216-15237(Top 86%)2265(Top 83%)209(Top 78%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 90%
~flat
+3ft-2ft

Overall

5492

Females

2371

F40-44

209

1.40M→2.13M

1.4 - 2.1 mi

Top 94%
~flat
+3ft-1ft

Overall

5698

Females

2485

F40-44

231

2.13M→6.43M

2.1 - 6.4 mi

Top 86%
×17story building
+274ft-78ft

Overall

5200

Females

2197

F40-44

202

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F40-44

-

6.62M→10.65M

6.6 - 10.7 mi

Top 90%
×21story building
+153ft-361ft

Overall

5487

Females

2396

F40-44

227

10.65M→Finish

10.7 - 13.1 mi

Top 86%
×17story building
+244ft-114ft

Overall

5237

Females

2265

F40-44

209

Passing Analysis

Category:
Athletes Passed
586*
Passed By
526
Net Change
+60
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#5492
1.40M → 2.13M88179-91#5492#5583
2.13M → 6.43M341*128+213#5583#5370
6.43M → 6.62M5150+1#5370#5369
6.62M → 10.65M51*119-68#5369#5437
10.65M → Finish55*50+5#5437#5432
TOTALS586*526+60

* 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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