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SF MARATHON 1ST HALF 2023

Masako Inamura

Bib: 10735•F•Age: 46

San Francisco, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6072
Top 45%
Gender (Female)
#0 / 2732
Top 34%
Masters (Masters Women)
#0 / 746
Top 21%
Division (F45-49)
#0 / 175
Top 22%
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
8:32/mi
11:57
→ flat
2.13M
23:12/mi
28:53
→ flat
6.43M
11:26/mi
1:18:04
↑ 274↓ 780.9%
6.62M
-38:-52/mi
1:10:52
↑ 161.6%
10.65M
9:49/mi
1:50:25
↑ 153↓ 3611.0%
Finish· 13.11 mi
9:31/mi
2:13:50
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:10:52
Pace10:42 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:02:58
Pace9:42 /mi
📊Negative Split: 11.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:42:4011:578:3211:57
8:32
-
2.13M
2.13 mi06:59:3628:5313:3416:56
23:12
+14:40
6.43M
6.43 mi07:48:471:18:0412:0849:11
11:26
-11:46
6.62M
6.62 mi07:41:351:10:5210:42
-38:-52
-50:18
10.65M
10.65 mi08:21:081:50:2510:2239:33
9:49
+48:41
Finish
13.11 mi08:44:332:13:5010:1323:25
9:31
-0:18

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:-52 /mi

Average Pace

10:13 /mi

Slowest Pace

23:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:50

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:13 /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 mi06:42:4011:578:3211:57
8:32
#1625
2.13M
2.13 mi06:59:3628:5313:3416:56
23:12
#3962
6.43M
6.43 mi07:48:471:18:0412:0849:11
11:26
#2905
6.62M
6.62 mi07:41:351:10:5210:42
-38:-52
#2802
10.65M
10.65 mi08:21:081:50:2510:2239:33
9:49
#2748
Finish
13.11 mi08:44:332:13:5010:1323:25
9:31
#2727
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
1.40M1.40 mi1.40 mi1625489181625(Top 27%)489(Top 18%)18(Top 10%)
2.13M2.13 mi0.73 mi3962-23371525-103672-545407(Top 89%)2321(Top 85%)133(Top 76%)
6.43M6.43 mi4.30 mi2905+10571001+52442+302483(Top 41%)825(Top 30%)31(Top 18%)
6.62M6.62 mi0.19 mi2802+103962+3941+1---
10.65M10.65 mi4.03 mi2748+54944+1838+32710(Top 45%)932(Top 34%)42(Top 24%)
Finish13.11 mi2.46 mi2727+21935+9382760(Top 45%)997(Top 36%)41(Top 23%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 27%
~flat
+3ft-2ft

Overall

1625

Females

489

F45-49

18

1.40M→2.13M

1.4 - 2.1 mi

Top 89%
~flat
+3ft-1ft

Overall

5407

Females

2321

F45-49

133

2.13M→6.43M

2.1 - 6.4 mi

Top 41%
×17story building
+274ft-78ft

Overall

2483

Females

825

F45-49

31

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F45-49

-

6.62M→10.65M

6.6 - 10.7 mi

Top 45%
×21story building
+153ft-361ft

Overall

2710

Females

932

F45-49

42

10.65M→Finish

10.7 - 13.1 mi

Top 45%
×17story building
+244ft-114ft

Overall

2760

Females

997

F45-49

41

Passing Analysis

Category:
Athletes Passed
1473*
Passed By
2575
Net Change
-1102
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#1625
1.40M → 2.13M22339-2337#1625#3962
2.13M → 6.43M1085*28+1057#3962#2905
6.43M → 6.62M12421+103#2905#2802
6.62M → 10.65M167*113+54#2802#2748
10.65M → Finish95*74+21#2748#2727
TOTALS1473*2575-1102

* 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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