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SF MARATHON 1ST HALF 2023

Natalie Barrera

Palo Alto, CA

Bib: 10437 F 28

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Female)
#0 / 2732
Division (F25-29)
#0 / 629
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
10:46/mi
15:05
→ flat
11 ft elev
2.13M
21:21/mi
30:40
→ flat
13 ft elev
6.43M
14:15/mi
1:31:56
↑ 274↓ 780.9%
213 ft elev
6.62M
-43:-15/mi
1:23:54
↑ 161.6%
239 ft elev
10.65M
12:35/mi
2:14:36
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
11:58/mi
2:44:02
↑ 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
1:23:5412:40 /mi+4.5%
2nd Half
1:20:0812:21 /mi✓ faster
Negative split — 4.5% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
15:0510:461.40 mi15:05
10:46
-
2.13M
30:4014:240.73 mi15:35
21:21
+10:35
6.43M
1:31:5614:184.30 mi1:01:16
14:15
-7:06
6.62M
1:23:5412:400.19 mi
-43:-15
-57:30
10.65M
2:14:3612:384.03 mi50:42
12:35
+55:50
Finish(13.11 mi)
2:44:0212:312.46 mi29:26
11:58
-0:37
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-44:-15 /mi

Average Pace

12:31 /mi

Slowest Pace

21:21 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:44:02

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 12:31 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.40M1.40 mi4966206552749662065527
2.13M0.73 mi4742+2241933+132498+2947031921491
6.43M4.30 mi4960-2182048-115528-3050332098533
6.62M0.19 mi4947+132043+5527+1---
10.65M4.03 mi5101-1542140-97540-1352872285564
Finish(13.11 mi)2.46 mi5051+502123+17537+349012093520

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 82%
~flat
+3ft-2ft

Overall

4966

Females

2065

F25-29

529

1.40M→2.13M

1.4 - 2.1 mi

Top 77%
~flat
+3ft-1ft

Overall

4703

Females

1921

F25-29

496

2.13M→6.43M

2.1 - 6.4 mi

Top 83%
×17story building
+274ft-78ft

Overall

5033

Females

2098

F25-29

534

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F25-29

-

6.62M→10.65M

6.6 - 10.7 mi

Top 87%
×21story building
+153ft-361ft

Overall

5287

Females

2285

F25-29

564

10.65M→Finish

10.7 - 13.1 mi

Top 81%
×17story building
+244ft-114ft

Overall

4901

Females

2093

F25-29

520

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#4966
1.40M → 2.13M
93317+224
#4966 → #4742
2.13M → 6.43M
363145*-218
#4742 → #4960
6.43M → 6.62M
5063+13
#4960 → #4947
6.62M → 10.65M
20248*-154
#4947 → #5101
10.65M → Finish
2878*+50
#5101 → #5051
TOTALS
736651*-85
#4966 → #5051

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

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Passing Circle

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Position Flow

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Race Lanes

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